https://leetcode-solutions-5zk.pages.dev/tags/string/Recent content in String on LeetCode 题解笔记Hugozh-cn2026 ZenzZweiMon, 11 May 2026 12:12:02 +0800https://leetcode-solutions-5zk.pages.dev/posts/1896-minimum-cost-to-change-the-final-value-of-expression/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1896-minimum-cost-to-change-the-final-value-of-expression/Hard | Math, String, Dynamic Programming, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3003-maximize-the-number-of-partitions-after-operations/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3003-maximize-the-number-of-partitions-after-operations/Hard | String, Dynamic Programming, Bit Manipulation, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/3348-smallest-divisible-digit-product-ii/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3348-smallest-divisible-digit-product-ii/Hard | Math, String, Backtracking, Greedy, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3474-lexicographically-smallest-generated-string/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3474-lexicographically-smallest-generated-string/Hard | String, Greedy, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/3841-palindromic-path-queries-in-a-tree/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3841-palindromic-path-queries-in-a-tree/Hard | Array, String, Divide and Conquer, Tree, Segment Treehttps://leetcode-solutions-5zk.pages.dev/posts/0745-prefix-and-suffix-search/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0745-prefix-and-suffix-search/Hard | Array, Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0770-basic-calculator-iv/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0770-basic-calculator-iv/Hard | Hash Table, Math, String, Stack, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/1638-count-substrings-that-differ-by-one-character/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1638-count-substrings-that-differ-by-one-character/Medium | Hash Table, String, Dynamic Programming, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/1657-determine-if-two-strings-are-close/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1657-determine-if-two-strings-are-close/Medium | Hash Table, String, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1684-count-the-number-of-consistent-strings/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1684-count-the-number-of-consistent-strings/Easy | Array, Hash Table, String, Bit Manipulation, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1771-maximize-palindrome-length-from-subsequences/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1771-maximize-palindrome-length-from-subsequences/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1805-number-of-different-integers-in-a-string/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1805-number-of-different-integers-in-a-string/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1839-longest-substring-of-all-vowels-in-order/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1839-longest-substring-of-all-vowels-in-order/Medium | String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1898-maximum-number-of-removable-characters/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1898-maximum-number-of-removable-characters/Medium | Array, Two Pointers, String, Binary Searchhttps://leetcode-solutions-5zk.pages.dev/posts/2014-longest-subsequence-repeated-k-times/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2014-longest-subsequence-repeated-k-times/Hard | Hash Table, Two Pointers, String, Backtracking, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2019-the-score-of-students-solving-math-expression/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2019-the-score-of-students-solving-math-expression/Hard | Array, Hash Table, Math, String, Dynamic Programming, Stack, Memoizationhttps://leetcode-solutions-5zk.pages.dev/posts/2023-number-of-pairs-of-strings-with-concatenation-equal-to-target/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2023-number-of-pairs-of-strings-with-concatenation-equal-to-target/Medium | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2062-count-vowel-substrings-of-a-string/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2062-count-vowel-substrings-of-a-string/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2114-maximum-number-of-words-found-in-sentences/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2114-maximum-number-of-words-found-in-sentences/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2120-execution-of-all-suffix-instructions-staying-in-a-grid/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2120-execution-of-all-suffix-instructions-staying-in-a-grid/Medium | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2125-number-of-laser-beams-in-a-bank/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2125-number-of-laser-beams-in-a-bank/Medium | Array, Math, String, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/2272-substring-with-largest-variance/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2272-substring-with-largest-variance/Hard | Hash Table, String, Dynamic Programming, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2284-sender-with-largest-word-count/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2284-sender-with-largest-word-count/Medium | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2301-match-substring-after-replacement/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2301-match-substring-after-replacement/Hard | Array, Hash Table, String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/2391-minimum-amount-of-time-to-collect-garbage/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2391-minimum-amount-of-time-to-collect-garbage/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0072-edit-distance/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0072-edit-distance/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0076-minimum-window-substring/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0076-minimum-window-substring/Hard | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1003-check-if-word-is-valid-after-substitutions/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1003-check-if-word-is-valid-after-substitutions/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1023-camelcase-matching/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1023-camelcase-matching/Medium | Array, Two Pointers, String, Trie, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/1092-shortest-common-supersequence/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1092-shortest-common-supersequence/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1143-longest-common-subsequence/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1143-longest-common-subsequence/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0115-distinct-subsequences/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0115-distinct-subsequences/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1169-invalid-transactions/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1169-invalid-transactions/Medium | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1239-maximum-length-of-a-concatenated-string-with-unique-characters/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1239-maximum-length-of-a-concatenated-string-with-unique-characters/Medium | Array, String, Backtracking, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/0126-word-ladder-ii/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0126-word-ladder-ii/Hard | Hash Table, String, Backtracking, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0127-word-ladder/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0127-word-ladder/Hard | Hash Table, String, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0131-palindrome-partitioning/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0131-palindrome-partitioning/Medium | String, Dynamic Programming, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/1312-minimum-insertion-steps-to-make-a-string-palindrome/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1312-minimum-insertion-steps-to-make-a-string-palindrome/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1316-distinct-echo-substrings/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1316-distinct-echo-substrings/Hard | String, Trie, Rolling Hash, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0132-palindrome-partitioning-ii/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0132-palindrome-partitioning-ii/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1320-minimum-distance-to-type-a-word-using-two-fingers/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1320-minimum-distance-to-type-a-word-using-two-fingers/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1405-longest-happy-string/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1405-longest-happy-string/Medium | String, Greedy, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/1447-simplified-fractions/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1447-simplified-fractions/Medium | Math, String, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/1452-people-whose-list-of-favorite-companies-is-not-a-subset-of-another-list/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1452-people-whose-list-of-favorite-companies-is-not-a-subset-of-another-list/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1505-minimum-possible-integer-after-at-most-k-adjacent-swaps-on-digits/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1505-minimum-possible-integer-after-at-most-k-adjacent-swaps-on-digits/Hard | String, Greedy, Binary Indexed Tree, Segment Treehttps://leetcode-solutions-5zk.pages.dev/posts/1625-lexicographically-smallest-string-after-applying-operations/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1625-lexicographically-smallest-string-after-applying-operations/Medium | String, Depth-First Search, Breadth-First Search, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/1629-slowest-key/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1629-slowest-key/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1915-number-of-wonderful-substrings/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1915-number-of-wonderful-substrings/Medium | Hash Table, String, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0020-valid-parentheses/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0020-valid-parentheses/Easy | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2767-partition-string-into-minimum-beautiful-substrings/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2767-partition-string-into-minimum-beautiful-substrings/Medium | Hash Table, String, Dynamic Programming, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/2781-length-of-the-longest-valid-substring/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2781-length-of-the-longest-valid-substring/Hard | Array, Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2785-sort-vowels-in-a-string/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2785-sort-vowels-in-a-string/Medium | String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2788-split-strings-by-separator/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2788-split-strings-by-separator/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2800-shortest-string-that-contains-three-strings/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2800-shortest-string-that-contains-three-strings/Medium | String, Greedy, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/0306-additive-number/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0306-additive-number/Medium | String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/0318-maximum-product-of-word-lengths/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0318-maximum-product-of-word-lengths/Medium | Array, String, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/3579-minimum-steps-to-convert-string-with-operations/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3579-minimum-steps-to-convert-string-with-operations/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0038-count-and-say/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0038-count-and-say/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0395-longest-substring-with-at-least-k-repeating-characters/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0395-longest-substring-with-at-least-k-repeating-characters/Medium | Hash Table, String, Divide and Conquer, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0467-unique-substrings-in-wraparound-string/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0467-unique-substrings-in-wraparound-string/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0472-concatenated-words/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0472-concatenated-words/Hard | Array, String, Dynamic Programming, Depth-First Search, Trie, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0474-ones-and-zeroes/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0474-ones-and-zeroes/Medium | Array, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0488-zuma-game/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0488-zuma-game/Hard | String, Dynamic Programming, Stack, Breadth-First Search, Memoizationhttps://leetcode-solutions-5zk.pages.dev/posts/0514-freedom-trail/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0514-freedom-trail/Hard | String, Dynamic Programming, Depth-First Search, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0516-longest-palindromic-subsequence/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0516-longest-palindromic-subsequence/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0522-longest-uncommon-subsequence-ii/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0522-longest-uncommon-subsequence-ii/Medium | Array, Hash Table, Two Pointers, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0524-longest-word-in-dictionary-through-deleting/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0524-longest-word-in-dictionary-through-deleting/Medium | Array, Two Pointers, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0583-delete-operation-for-two-strings/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0583-delete-operation-for-two-strings/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0599-minimum-index-sum-of-two-lists/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0599-minimum-index-sum-of-two-lists/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0640-solve-the-equation/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0640-solve-the-equation/Medium | Math, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0677-map-sum-pairs/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0677-map-sum-pairs/Medium | Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0692-top-k-frequent-words/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0692-top-k-frequent-words/Medium | Array, Hash Table, String, Trie, Sorting, Heap (Priority Queue), Bucket Sort, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0712-minimum-ascii-delete-sum-for-two-strings/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0712-minimum-ascii-delete-sum-for-two-strings/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0722-remove-comments/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0722-remove-comments/Medium | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0730-count-different-palindromic-subsequences/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0730-count-different-palindromic-subsequences/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0736-parse-lisp-expression/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0736-parse-lisp-expression/Hard | Hash Table, String, Stack, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/0792-number-of-matching-subsequences/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0792-number-of-matching-subsequences/Medium | Array, Hash Table, String, Binary Search, Dynamic Programming, Trie, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0809-expressive-words/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0809-expressive-words/Medium | Array, Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0811-subdomain-visit-count/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0811-subdomain-visit-count/Medium | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0839-similar-string-groups/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0839-similar-string-groups/Hard | Array, Hash Table, String, Depth-First Search, Breadth-First Search, Union-Findhttps://leetcode-solutions-5zk.pages.dev/posts/0843-guess-the-word/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0843-guess-the-word/Hard | Array, Math, String, Interactive, Game Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/0844-backspace-string-compare/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0844-backspace-string-compare/Easy | Two Pointers, String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0893-groups-of-special-equivalent-strings/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0893-groups-of-special-equivalent-strings/Medium | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0929-unique-email-addresses/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0929-unique-email-addresses/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0937-reorder-data-in-log-files/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0937-reorder-data-in-log-files/Medium | Array, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0943-find-the-shortest-superstring/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0943-find-the-shortest-superstring/Hard | Array, String, Dynamic Programming, Bit Manipulation, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/0988-smallest-string-starting-from-leaf/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0988-smallest-string-starting-from-leaf/Medium | String, Backtracking, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/3210-find-the-encrypted-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3210-find-the-encrypted-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3211-generate-binary-strings-without-adjacent-zeros/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3211-generate-binary-strings-without-adjacent-zeros/Medium | String, Backtracking, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/3213-construct-string-with-minimum-cost/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3213-construct-string-with-minimum-cost/Hard | Array, String, Dynamic Programming, Suffix Arrayhttps://leetcode-solutions-5zk.pages.dev/posts/3216-lexicographically-smallest-string-after-a-swap/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3216-lexicographically-smallest-string-after-a-swap/Easy | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3223-minimum-length-of-string-after-operations/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3223-minimum-length-of-string-after-operations/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3227-vowels-game-in-a-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3227-vowels-game-in-a-string/Medium | Math, String, Brainteaser, Game Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3228-maximum-number-of-operations-to-move-ones-to-the-end/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3228-maximum-number-of-operations-to-move-ones-to-the-end/Medium | String, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3234-count-the-number-of-substrings-with-dominant-ones/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3234-count-the-number-of-substrings-with-dominant-ones/Medium | String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3248-snake-in-matrix/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3248-snake-in-matrix/Easy | Array, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3258-count-substrings-that-satisfy-k-constraint-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3258-count-substrings-that-satisfy-k-constraint-i/Easy | String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3260-find-the-largest-palindrome-divisible-by-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3260-find-the-largest-palindrome-divisible-by-k/Hard | Math, String, Dynamic Programming, Greedy, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3261-count-substrings-that-satisfy-k-constraint-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3261-count-substrings-that-satisfy-k-constraint-ii/Hard | Array, String, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3271-hash-divided-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3271-hash-divided-string/Medium | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3274-check-if-two-chessboard-squares-have-the-same-color/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3274-check-if-two-chessboard-squares-have-the-same-color/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3280-convert-date-to-binary/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3280-convert-date-to-binary/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3291-minimum-number-of-valid-strings-to-form-target-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3291-minimum-number-of-valid-strings-to-form-target-i/Medium | Array, String, Binary Search, Dynamic Programming, Greedy, Trie, Segment Tree, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3292-minimum-number-of-valid-strings-to-form-target-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3292-minimum-number-of-valid-strings-to-form-target-ii/Hard | Array, String, Binary Search, Dynamic Programming, Greedy, Segment Tree, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3295-report-spam-message/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3295-report-spam-message/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3297-count-substrings-that-can-be-rearranged-to-contain-a-string-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3297-count-substrings-that-can-be-rearranged-to-contain-a-string-i/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3298-count-substrings-that-can-be-rearranged-to-contain-a-string-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3298-count-substrings-that-can-be-rearranged-to-contain-a-string-ii/Hard | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3302-find-the-lexicographically-smallest-valid-sequence/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3302-find-the-lexicographically-smallest-valid-sequence/Medium | Two Pointers, String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3303-find-the-occurrence-of-first-almost-equal-substring/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3303-find-the-occurrence-of-first-almost-equal-substring/Hard | String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/3305-count-of-substrings-containing-every-vowel-and-k-consonants-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3305-count-of-substrings-containing-every-vowel-and-k-consonants-i/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3306-count-of-substrings-containing-every-vowel-and-k-consonants-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3306-count-of-substrings-containing-every-vowel-and-k-consonants-ii/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3316-find-maximum-removals-from-source-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3316-find-maximum-removals-from-source-string/Medium | Array, Hash Table, Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3320-count-the-number-of-winning-sequences/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3320-count-the-number-of-winning-sequences/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3324-find-the-sequence-of-strings-appeared-on-the-screen/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3324-find-the-sequence-of-strings-appeared-on-the-screen/Medium | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3325-count-substrings-with-k-frequency-characters-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3325-count-substrings-with-k-frequency-characters-i/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3327-check-if-dfs-strings-are-palindromes/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3327-check-if-dfs-strings-are-palindromes/Hard | Array, Hash Table, String, Tree, Depth-First Search, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3330-find-the-original-typed-string-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3330-find-the-original-typed-string-i/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3331-find-subtree-sizes-after-changes/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3331-find-subtree-sizes-after-changes/Medium | Array, Hash Table, String, Tree, Depth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/3333-find-the-original-typed-string-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3333-find-the-original-typed-string-ii/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3335-total-characters-in-string-after-transformations-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3335-total-characters-in-string-after-transformations-i/Medium | Hash Table, Math, String, Dynamic Programming, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3337-total-characters-in-string-after-transformations-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3337-total-characters-in-string-after-transformations-ii/Hard | Hash Table, Math, String, Dynamic Programming, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3340-check-balanced-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3340-check-balanced-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3343-count-number-of-balanced-permutations/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3343-count-number-of-balanced-permutations/Hard | Math, String, Dynamic Programming, Combinatoricshttps://leetcode-solutions-5zk.pages.dev/posts/3352-count-k-reducible-numbers-less-than-n/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3352-count-k-reducible-numbers-less-than-n/Hard | Math, String, Dynamic Programming, Combinatoricshttps://leetcode-solutions-5zk.pages.dev/posts/3361-shift-distance-between-two-strings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3361-shift-distance-between-two-strings/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3365-rearrange-k-substrings-to-form-target-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3365-rearrange-k-substrings-to-form-target-string/Medium | Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3387-maximize-amount-after-two-days-of-conversions/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3387-maximize-amount-after-two-days-of-conversions/Medium | Array, String, Depth-First Search, Breadth-First Search, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3389-minimum-operations-to-make-character-frequencies-equal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3389-minimum-operations-to-make-character-frequencies-equal/Hard | Hash Table, String, Dynamic Programming, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3399-smallest-substring-with-identical-characters-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3399-smallest-substring-with-identical-characters-ii/Hard | String, Binary Searchhttps://leetcode-solutions-5zk.pages.dev/posts/3403-find-the-lexicographically-largest-string-from-the-box-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3403-find-the-lexicographically-largest-string-from-the-box-i/Medium | Two Pointers, String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3407-substring-matching-pattern/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3407-substring-matching-pattern/Easy | String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/3412-find-mirror-score-of-a-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3412-find-mirror-score-of-a-string/Medium | Hash Table, String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3435-frequencies-of-shortest-supersequences/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3435-frequencies-of-shortest-supersequences/Hard | Array, String, Bit Manipulation, Graph Theory, Topological Sort, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3438-find-valid-pair-of-adjacent-digits-in-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3438-find-valid-pair-of-adjacent-digits-in-string/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3441-minimum-cost-good-caption/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3441-minimum-cost-good-caption/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3442-maximum-difference-between-even-and-odd-frequency-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3442-maximum-difference-between-even-and-odd-frequency-i/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3443-maximum-manhattan-distance-after-k-changes/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3443-maximum-manhattan-distance-after-k-changes/Medium | Hash Table, Math, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3445-maximum-difference-between-even-and-odd-frequency-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3445-maximum-difference-between-even-and-odd-frequency-ii/Hard | String, Sliding Window, Enumeration, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3448-count-substrings-divisible-by-last-digit/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3448-count-substrings-divisible-by-last-digit/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3455-shortest-matching-substring/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3455-shortest-matching-substring/Hard | Two Pointers, String, Binary Search, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/3456-find-special-substring-of-length-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3456-find-special-substring-of-length-k/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3458-select-k-disjoint-special-substrings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3458-select-k-disjoint-special-substrings/Medium | Hash Table, String, Dynamic Programming, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3461-check-if-digits-are-equal-in-string-after-operations-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3461-check-if-digits-are-equal-in-string-after-operations-i/Easy | Math, String, Simulation, Combinatorics, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3463-check-if-digits-are-equal-in-string-after-operations-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3463-check-if-digits-are-equal-in-string-after-operations-ii/Hard | Math, String, Combinatorics, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3472-longest-palindromic-subsequence-after-at-most-k-operations/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3472-longest-palindromic-subsequence-after-at-most-k-operations/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3484-design-spreadsheet/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3484-design-spreadsheet/Medium | Array, Hash Table, String, Design, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/3485-longest-common-prefix-of-k-strings-after-removal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3485-longest-common-prefix-of-k-strings-after-removal/Hard | Array, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/3498-reverse-degree-of-a-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3498-reverse-degree-of-a-string/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3499-maximize-active-section-with-trade-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3499-maximize-active-section-with-trade-i/Medium | String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3501-maximize-active-section-with-trade-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3501-maximize-active-section-with-trade-ii/Hard | Array, String, Binary Search, Segment Treehttps://leetcode-solutions-5zk.pages.dev/posts/3503-longest-palindrome-after-substring-concatenation-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3503-longest-palindrome-after-substring-concatenation-i/Medium | Two Pointers, String, Dynamic Programming, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3504-longest-palindrome-after-substring-concatenation-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3504-longest-palindrome-after-substring-concatenation-ii/Hard | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3517-smallest-palindromic-rearrangement-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3517-smallest-palindromic-rearrangement-i/Medium | String, Sorting, Counting Sorthttps://leetcode-solutions-5zk.pages.dev/posts/3518-smallest-palindromic-rearrangement-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3518-smallest-palindromic-rearrangement-ii/Hard | Hash Table, Math, String, Combinatorics, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3519-count-numbers-with-non-decreasing-digits/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3519-count-numbers-with-non-decreasing-digits/Hard | Math, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3522-calculate-score-after-performing-instructions/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3522-calculate-score-after-performing-instructions/Medium | Array, Hash Table, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3527-find-the-most-common-response/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3527-find-the-most-common-response/Medium | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3529-count-cells-in-overlapping-horizontal-and-vertical-substrings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3529-count-cells-in-overlapping-horizontal-and-vertical-substrings/Medium | Array, String, Rolling Hash, String Matching, Matrix, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3541-find-most-frequent-vowel-and-consonant/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3541-find-most-frequent-vowel-and-consonant/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3545-minimum-deletions-for-at-most-k-distinct-characters/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3545-minimum-deletions-for-at-most-k-distinct-characters/Easy | Hash Table, String, Greedy, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3556-sum-of-largest-prime-substrings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3556-sum-of-largest-prime-substrings/Medium | Hash Table, Math, String, Sorting, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3557-find-maximum-number-of-non-intersecting-substrings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3557-find-maximum-number-of-non-intersecting-substrings/Medium | Hash Table, String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3561-resulting-string-after-adjacent-removals/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3561-resulting-string-after-adjacent-removals/Medium | String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3563-lexicographically-smallest-string-after-adjacent-removals/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3563-lexicographically-smallest-string-after-adjacent-removals/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3582-generate-tag-for-video-caption/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3582-generate-tag-for-video-caption/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3597-partition-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3597-partition-string/Medium | Hash Table, String, Trie, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3598-longest-common-prefix-between-adjacent-strings-after-removals/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3598-longest-common-prefix-between-adjacent-strings-after-removals/Medium | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3602-hexadecimal-and-hexatrigesimal-conversion/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3602-hexadecimal-and-hexatrigesimal-conversion/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3606-coupon-code-validator/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3606-coupon-code-validator/Easy | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3612-process-string-with-special-operations-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3612-process-string-with-special-operations-i/Medium | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3614-process-string-with-special-operations-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3614-process-string-with-special-operations-ii/Hard | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3615-longest-palindromic-path-in-graph/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3615-longest-palindromic-path-in-graph/Hard | String, Dynamic Programming, Bit Manipulation, Graph Theory, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/3628-maximum-number-of-subsequences-after-one-inserting/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3628-maximum-number-of-subsequences-after-one-inserting/Medium | String, Dynamic Programming, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3664-two-letter-card-game/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3664-two-letter-card-game/Medium | Array, Hash Table, String, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3666-minimum-operations-to-equalize-binary-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3666-minimum-operations-to-equalize-binary-string/Hard | Math, String, Breadth-First Search, Union-Find, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/3675-minimum-operations-to-transform-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3675-minimum-operations-to-transform-string/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3692-majority-frequency-characters/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3692-majority-frequency-characters/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3694-distinct-points-reachable-after-substring-removal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3694-distinct-points-reachable-after-substring-removal/Medium | Hash Table, String, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3703-remove-k-balanced-substrings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3703-remove-k-balanced-substrings/Medium | String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3707-equal-score-substrings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3707-equal-score-substrings/Easy | String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3713-longest-balanced-substring-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3713-longest-balanced-substring-i/Medium | Hash Table, String, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3714-longest-balanced-substring-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3714-longest-balanced-substring-ii/Medium | Hash Table, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3720-lexicographically-smallest-permutation-greater-than-target/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3720-lexicographically-smallest-permutation-greater-than-target/Medium | Hash Table, String, Greedy, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3734-lexicographically-smallest-palindromic-permutation-greater-than-target/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3734-lexicographically-smallest-palindromic-permutation-greater-than-target/Hard | Two Pointers, String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3746-minimum-string-length-after-balanced-removals/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3746-minimum-string-length-after-balanced-removals/Medium | String, Stack, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3750-minimum-number-of-flips-to-reverse-binary-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3750-minimum-number-of-flips-to-reverse-binary-string/Easy | Math, Two Pointers, String, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/3756-concatenate-non-zero-digits-and-multiply-by-sum-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3756-concatenate-non-zero-digits-and-multiply-by-sum-ii/Medium | Math, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3760-maximum-substrings-with-distinct-start/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3760-maximum-substrings-with-distinct-start/Medium | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3775-reverse-words-with-same-vowel-count/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3775-reverse-words-with-same-vowel-count/Medium | Two Pointers, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3777-minimum-deletions-to-make-alternating-substring/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3777-minimum-deletions-to-make-alternating-substring/Hard | String, Segment Treehttps://leetcode-solutions-5zk.pages.dev/posts/3781-maximum-score-after-binary-swaps/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3781-maximum-score-after-binary-swaps/Medium | Array, String, Greedy, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/3784-minimum-deletion-cost-to-make-all-characters-equal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3784-minimum-deletion-cost-to-make-all-characters-equal/Medium | Array, Hash Table, String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3794-reverse-string-prefix/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3794-reverse-string-prefix/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3798-largest-even-number/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3798-largest-even-number/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3799-word-squares-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3799-word-squares-ii/Medium | Array, String, Backtracking, Sorting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3800-minimum-cost-to-make-two-binary-strings-equal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3800-minimum-cost-to-make-two-binary-strings-equal/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3803-count-residue-prefixes/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3803-count-residue-prefixes/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3805-count-caesar-cipher-pairs/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3805-count-caesar-cipher-pairs/Medium | Array, Hash Table, Math, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3813-vowel-consonant-score/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3813-vowel-consonant-score/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3816-lexicographically-smallest-string-after-deleting-duplicate-characters/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3816-lexicographically-smallest-string-after-deleting-duplicate-characters/Hard | Hash Table, String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3823-reverse-letters-then-special-characters-in-a-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3823-reverse-letters-then-special-characters-in-a-string/Easy | Two Pointers, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3838-weighted-word-mapping/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3838-weighted-word-mapping/Easy | Array, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3839-number-of-prefix-connected-groups/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3839-number-of-prefix-connected-groups/Medium | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3844-longest-almost-palindromic-substring/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3844-longest-almost-palindromic-substring/Medium | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3849-maximum-bitwise-xor-after-rearrangement/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3849-maximum-bitwise-xor-after-rearrangement/Medium | String, Greedy, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/3853-merge-close-characters/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3853-merge-close-characters/Medium | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3856-trim-trailing-vowels/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3856-trim-trailing-vowels/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3863-minimum-operations-to-sort-a-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3863-minimum-operations-to-sort-a-string/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3864-minimum-cost-to-partition-a-binary-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3864-minimum-cost-to-partition-a-binary-string/Hard | String, Divide and Conquer, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3884-first-matching-character-from-both-ends/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3884-first-matching-character-from-both-ends/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3889-mirror-frequency-distance/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3889-mirror-frequency-distance/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2976-minimum-cost-to-convert-string-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2976-minimum-cost-to-convert-string-i/Medium | Array, String, Graph Theory, Shortest Pathhttps://leetcode-solutions-5zk.pages.dev/posts/2977-minimum-cost-to-convert-string-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2977-minimum-cost-to-convert-string-ii/Hard | Array, String, Dynamic Programming, Graph Theory, Trie, Shortest Pathhttps://leetcode-solutions-5zk.pages.dev/posts/2981-find-longest-special-substring-that-occurs-thrice-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2981-find-longest-special-substring-that-occurs-thrice-i/Medium | Hash Table, String, Binary Search, Sliding Window, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2982-find-longest-special-substring-that-occurs-thrice-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2982-find-longest-special-substring-that-occurs-thrice-ii/Medium | Hash Table, String, Binary Search, Sliding Window, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2983-palindrome-rearrangement-queries/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2983-palindrome-rearrangement-queries/Hard | Array, Hash Table, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2999-count-the-number-of-powerful-integers/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2999-count-the-number-of-powerful-integers/Hard | Math, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3006-find-beautiful-indices-in-the-given-array-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3006-find-beautiful-indices-in-the-given-array-i/Medium | Two Pointers, String, Binary Search, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3008-find-beautiful-indices-in-the-given-array-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3008-find-beautiful-indices-in-the-given-array-ii/Hard | Two Pointers, String, Binary Search, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3014-minimum-number-of-pushes-to-type-word-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3014-minimum-number-of-pushes-to-type-word-i/Easy | Math, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3016-minimum-number-of-pushes-to-type-word-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3016-minimum-number-of-pushes-to-type-word-ii/Medium | Hash Table, String, Greedy, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3019-number-of-changing-keys/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3019-number-of-changing-keys/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3029-minimum-time-to-revert-word-to-initial-state-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3029-minimum-time-to-revert-word-to-initial-state-i/Medium | String, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3031-minimum-time-to-revert-word-to-initial-state-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3031-minimum-time-to-revert-word-to-initial-state-ii/Hard | String, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3035-maximum-palindromes-after-operations/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3035-maximum-palindromes-after-operations/Medium | Array, Hash Table, String, Greedy, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3042-count-prefix-and-suffix-pairs-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3042-count-prefix-and-suffix-pairs-i/Easy | Array, String, Trie, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3043-find-the-length-of-the-longest-common-prefix/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3043-find-the-length-of-the-longest-common-prefix/Medium | Array, Hash Table, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/3045-count-prefix-and-suffix-pairs-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3045-count-prefix-and-suffix-pairs-ii/Hard | Array, String, Trie, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/3076-shortest-uncommon-substring-in-an-array/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3076-shortest-uncommon-substring-in-an-array/Medium | Array, Hash Table, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/3081-replace-question-marks-in-string-to-minimize-its-value/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3081-replace-question-marks-in-string-to-minimize-its-value/Medium | Hash Table, String, Greedy, Sorting, Heap (Priority Queue), Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3083-existence-of-a-substring-in-a-string-and-its-reverse/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3083-existence-of-a-substring-in-a-string-and-its-reverse/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3084-count-substrings-starting-and-ending-with-given-character/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3084-count-substrings-starting-and-ending-with-given-character/Medium | Math, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3085-minimum-deletions-to-make-string-k-special/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3085-minimum-deletions-to-make-string-k-special/Medium | Hash Table, String, Greedy, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3090-maximum-length-substring-with-two-occurrences/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3090-maximum-length-substring-with-two-occurrences/Easy | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3093-longest-common-suffix-queries/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3093-longest-common-suffix-queries/Hard | Array, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/3106-lexicographically-smallest-string-after-operations-with-constraint/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3106-lexicographically-smallest-string-after-operations-with-constraint/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3110-score-of-a-string/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3110-score-of-a-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3114-latest-time-you-can-obtain-after-replacing-characters/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3114-latest-time-you-can-obtain-after-replacing-characters/Easy | String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3120-count-the-number-of-special-characters-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3120-count-the-number-of-special-characters-i/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3121-count-the-number-of-special-characters-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3121-count-the-number-of-special-characters-ii/Medium | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3136-valid-word/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3136-valid-word/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3137-minimum-number-of-operations-to-make-word-k-periodic/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3137-minimum-number-of-operations-to-make-word-k-periodic/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3138-minimum-length-of-anagram-concatenation/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3138-minimum-length-of-anagram-concatenation/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3143-maximum-points-inside-the-square/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3143-maximum-points-inside-the-square/Medium | Array, Hash Table, String, Binary Search, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3144-minimum-substring-partition-of-equal-character-frequency/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3144-minimum-substring-partition-of-equal-character-frequency/Medium | Hash Table, String, Dynamic Programming, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3146-permutation-difference-between-two-strings/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3146-permutation-difference-between-two-strings/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3163-string-compression-iii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3163-string-compression-iii/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/3168-minimum-number-of-chairs-in-a-waiting-room/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3168-minimum-number-of-chairs-in-a-waiting-room/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3170-lexicographically-minimum-string-after-removing-stars/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3170-lexicographically-minimum-string-after-removing-stars/Medium | Hash Table, String, Stack, Greedy, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/3174-clear-digits/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3174-clear-digits/Easy | String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2645-minimum-additions-to-make-valid-string/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2645-minimum-additions-to-make-valid-string/Medium | String, Dynamic Programming, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2663-lexicographically-smallest-beautiful-string/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2663-lexicographically-smallest-beautiful-string/Hard | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2678-number-of-senior-citizens/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2678-number-of-senior-citizens/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2696-minimum-string-length-after-removing-substrings/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2696-minimum-string-length-after-removing-substrings/Easy | String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2697-lexicographically-smallest-palindrome/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2697-lexicographically-smallest-palindrome/Easy | Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2707-extra-characters-in-a-string/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2707-extra-characters-in-a-string/Medium | Array, Hash Table, String, Dynamic Programming, Triehttps://leetcode-solutions-5zk.pages.dev/posts/2710-remove-trailing-zeros-from-a-string/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2710-remove-trailing-zeros-from-a-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2712-minimum-cost-to-make-all-characters-equal/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2712-minimum-cost-to-make-all-characters-equal/Medium | String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2716-minimize-string-length/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2716-minimize-string-length/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2719-count-of-integers/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2719-count-of-integers/Hard | Math, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2730-find-the-longest-semi-repetitive-substring/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2730-find-the-longest-semi-repetitive-substring/Medium | String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2734-lexicographically-smallest-string-after-substring-operation/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2734-lexicographically-smallest-string-after-substring-operation/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2744-find-maximum-number-of-string-pairs/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2744-find-maximum-number-of-string-pairs/Easy | Array, Hash Table, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2746-decremental-string-concatenation/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2746-decremental-string-concatenation/Medium | Array, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2801-count-stepping-numbers-in-range/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2801-count-stepping-numbers-in-range/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2810-faulty-keyboard/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2810-faulty-keyboard/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2825-make-string-a-subsequence-using-cyclic-increments/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2825-make-string-a-subsequence-using-cyclic-increments/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2828-check-if-a-string-is-an-acronym-of-words/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2828-check-if-a-string-is-an-acronym-of-words/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2833-furthest-point-from-origin/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2833-furthest-point-from-origin/Easy | String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2839-check-if-strings-can-be-made-equal-with-operations-i/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2839-check-if-strings-can-be-made-equal-with-operations-i/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2840-check-if-strings-can-be-made-equal-with-operations-ii/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2840-check-if-strings-can-be-made-equal-with-operations-ii/Medium | Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2842-count-k-subsequences-of-a-string-with-maximum-beauty/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2842-count-k-subsequences-of-a-string-with-maximum-beauty/Hard | Hash Table, Math, String, Greedy, Sorting, Combinatoricshttps://leetcode-solutions-5zk.pages.dev/posts/2844-minimum-operations-to-make-a-special-number/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2844-minimum-operations-to-make-a-special-number/Medium | Math, String, Greedy, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2851-string-transformation/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2851-string-transformation/Hard | Math, String, Dynamic Programming, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/2864-maximum-odd-binary-number/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2864-maximum-odd-binary-number/Easy | Math, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2896-apply-operations-to-make-two-strings-equal/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2896-apply-operations-to-make-two-strings-equal/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2900-longest-unequal-adjacent-groups-subsequence-i/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2900-longest-unequal-adjacent-groups-subsequence-i/Easy | Array, String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2901-longest-unequal-adjacent-groups-subsequence-ii/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2901-longest-unequal-adjacent-groups-subsequence-ii/Medium | Array, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2904-shortest-and-lexicographically-smallest-beautiful-string/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2904-shortest-and-lexicographically-smallest-beautiful-string/Medium | String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2911-minimum-changes-to-make-k-semi-palindromes/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2911-minimum-changes-to-make-k-semi-palindromes/Hard | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2914-minimum-number-of-changes-to-make-binary-string-beautiful/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2914-minimum-number-of-changes-to-make-binary-string-beautiful/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2933-high-access-employees/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2933-high-access-employees/Medium | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2937-make-three-strings-equal/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2937-make-three-strings-equal/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2938-separate-black-and-white-balls/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2938-separate-black-and-white-balls/Medium | Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2942-find-words-containing-character/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2942-find-words-containing-character/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2947-count-beautiful-substrings-i/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2947-count-beautiful-substrings-i/Medium | Hash Table, Math, String, Enumeration, Number Theory, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2949-count-beautiful-substrings-ii/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2949-count-beautiful-substrings-ii/Hard | Hash Table, Math, String, Number Theory, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2953-count-complete-substrings/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2953-count-complete-substrings/Hard | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2957-remove-adjacent-almost-equal-characters/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2957-remove-adjacent-almost-equal-characters/Medium | String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2002-maximum-product-of-the-length-of-two-palindromic-subsequences/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2002-maximum-product-of-the-length-of-two-palindromic-subsequences/Medium | String, Dynamic Programming, Backtracking, Bit Manipulation, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/2011-final-value-of-variable-after-performing-operations/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2011-final-value-of-variable-after-performing-operations/Easy | Array, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2024-maximize-the-confusion-of-an-exam/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2024-maximize-the-confusion-of-an-exam/Medium | String, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2027-minimum-moves-to-convert-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2027-minimum-moves-to-convert-string/Easy | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2030-smallest-k-length-subsequence-with-occurrences-of-a-letter/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2030-smallest-k-length-subsequence-with-occurrences-of-a-letter/Hard | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2038-remove-colored-pieces-if-both-neighbors-are-the-same-color/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2038-remove-colored-pieces-if-both-neighbors-are-the-same-color/Medium | Math, String, Greedy, Game Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/2042-check-if-numbers-are-ascending-in-a-sentence/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2042-check-if-numbers-are-ascending-in-a-sentence/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2047-number-of-valid-words-in-a-sentence/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2047-number-of-valid-words-in-a-sentence/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2053-kth-distinct-string-in-an-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2053-kth-distinct-string-in-an-array/Easy | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2055-plates-between-candles/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2055-plates-between-candles/Medium | Array, String, Binary Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2056-number-of-valid-move-combinations-on-chessboard/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2056-number-of-valid-move-combinations-on-chessboard/Hard | Array, String, Backtracking, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2060-check-if-an-original-string-exists-given-two-encoded-strings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2060-check-if-an-original-string-exists-given-two-encoded-strings/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2063-vowels-of-all-substrings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2063-vowels-of-all-substrings/Medium | Math, String, Dynamic Programming, Combinatoricshttps://leetcode-solutions-5zk.pages.dev/posts/2068-check-whether-two-strings-are-almost-equivalent/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2068-check-whether-two-strings-are-almost-equivalent/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2075-decode-the-slanted-ciphertext/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2075-decode-the-slanted-ciphertext/Medium | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2085-count-common-words-with-one-occurrence/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2085-count-common-words-with-one-occurrence/Easy | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2086-minimum-number-of-food-buckets-to-feed-the-hamsters/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2086-minimum-number-of-food-buckets-to-feed-the-hamsters/Medium | String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2096-step-by-step-directions-from-a-binary-tree-node-to-another/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2096-step-by-step-directions-from-a-binary-tree-node-to-another/Medium | String, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/2103-rings-and-rods/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2103-rings-and-rods/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2108-find-first-palindromic-string-in-the-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2108-find-first-palindromic-string-in-the-array/Easy | Array, Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2109-adding-spaces-to-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2109-adding-spaces-to-a-string/Medium | Array, Two Pointers, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2115-find-all-possible-recipes-from-given-supplies/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2115-find-all-possible-recipes-from-given-supplies/Medium | Array, Hash Table, String, Graph Theory, Topological Sorthttps://leetcode-solutions-5zk.pages.dev/posts/2116-check-if-a-parentheses-string-can-be-valid/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2116-check-if-a-parentheses-string-can-be-valid/Medium | String, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2124-check-if-all-as-appears-before-all-bs/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2124-check-if-all-as-appears-before-all-bs/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2129-capitalize-the-title/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2129-capitalize-the-title/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2131-longest-palindrome-by-concatenating-two-letter-words/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2131-longest-palindrome-by-concatenating-two-letter-words/Medium | Array, Hash Table, String, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2135-count-words-obtained-after-adding-a-letter/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2135-count-words-obtained-after-adding-a-letter/Medium | Array, Hash Table, String, Bit Manipulation, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2138-divide-a-string-into-groups-of-size-k/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2138-divide-a-string-into-groups-of-size-k/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2147-number-of-ways-to-divide-a-long-corridor/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2147-number-of-ways-to-divide-a-long-corridor/Hard | Math, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2156-find-substring-with-given-hash-value/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2156-find-substring-with-given-hash-value/Hard | String, Sliding Window, Rolling Hash, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/2157-groups-of-strings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2157-groups-of-strings/Hard | Array, Hash Table, String, Bit Manipulation, Union-Findhttps://leetcode-solutions-5zk.pages.dev/posts/2166-design-bitset/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2166-design-bitset/Medium | Array, Hash Table, String, Designhttps://leetcode-solutions-5zk.pages.dev/posts/2167-minimum-time-to-remove-all-cars-containing-illegal-goods/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2167-minimum-time-to-remove-all-cars-containing-illegal-goods/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2182-construct-string-with-repeat-limit/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2182-construct-string-with-repeat-limit/Medium | Hash Table, String, Greedy, Heap (Priority Queue), Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2185-counting-words-with-a-given-prefix/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2185-counting-words-with-a-given-prefix/Easy | Array, String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/2186-minimum-number-of-steps-to-make-two-strings-anagram-ii/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2186-minimum-number-of-steps-to-make-two-strings-anagram-ii/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2193-minimum-number-of-moves-to-make-palindrome/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2193-minimum-number-of-moves-to-make-palindrome/Hard | Two Pointers, String, Greedy, Binary Indexed Treehttps://leetcode-solutions-5zk.pages.dev/posts/2194-cells-in-a-range-on-an-excel-sheet/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2194-cells-in-a-range-on-an-excel-sheet/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2207-maximize-number-of-subsequences-in-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2207-maximize-number-of-subsequences-in-a-string/Medium | String, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2209-minimum-white-tiles-after-covering-with-carpets/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2209-minimum-white-tiles-after-covering-with-carpets/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2211-count-collisions-on-a-road/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2211-count-collisions-on-a-road/Medium | String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2213-longest-substring-of-one-repeating-character/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2213-longest-substring-of-one-repeating-character/Hard | Array, String, Segment Tree, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2222-number-of-ways-to-select-buildings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2222-number-of-ways-to-select-buildings/Medium | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2223-sum-of-scores-of-built-strings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2223-sum-of-scores-of-built-strings/Hard | String, Binary Search, Rolling Hash, Suffix Array, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/2224-minimum-number-of-operations-to-convert-time/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2224-minimum-number-of-operations-to-convert-time/Easy | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2227-encrypt-and-decrypt-strings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2227-encrypt-and-decrypt-strings/Hard | Array, Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/2232-minimize-result-by-adding-parentheses-to-expression/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2232-minimize-result-by-adding-parentheses-to-expression/Medium | String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2243-calculate-digit-sum-of-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2243-calculate-digit-sum-of-a-string/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2246-longest-path-with-different-adjacent-characters/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2246-longest-path-with-different-adjacent-characters/Hard | Array, String, Tree, Depth-First Search, Graph Theory, Topological Sorthttps://leetcode-solutions-5zk.pages.dev/posts/2255-count-prefixes-of-a-given-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2255-count-prefixes-of-a-given-string/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2259-remove-digit-from-number-to-maximize-result/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2259-remove-digit-from-number-to-maximize-result/Easy | String, Greedy, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2262-total-appeal-of-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2262-total-appeal-of-a-string/Hard | Hash Table, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2264-largest-3-same-digit-number-in-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2264-largest-3-same-digit-number-in-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2266-count-number-of-texts/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2266-count-number-of-texts/Medium | Hash Table, Math, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2269-find-the-k-beauty-of-a-number/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2269-find-the-k-beauty-of-a-number/Easy | Math, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2273-find-resultant-array-after-removing-anagrams/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2273-find-resultant-array-after-removing-anagrams/Easy | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2278-percentage-of-letter-in-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2278-percentage-of-letter-in-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2283-check-if-number-has-equal-digit-count-and-digit-value/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2283-check-if-number-has-equal-digit-count-and-digit-value/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2287-rearrange-characters-to-make-target-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2287-rearrange-characters-to-make-target-string/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2288-apply-discount-to-prices/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2288-apply-discount-to-prices/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2296-design-a-text-editor/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2296-design-a-text-editor/Hard | Linked List, String, Stack, Design, Simulation, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/2299-strong-password-checker-ii/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2299-strong-password-checker-ii/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2306-naming-a-company/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2306-naming-a-company/Hard | Array, Hash Table, String, Bit Manipulation, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2309-greatest-english-letter-in-upper-and-lower-case/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2309-greatest-english-letter-in-upper-and-lower-case/Easy | Hash Table, String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2311-longest-binary-subsequence-less-than-or-equal-to-k/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2311-longest-binary-subsequence-less-than-or-equal-to-k/Medium | String, Dynamic Programming, Greedy, Memoizationhttps://leetcode-solutions-5zk.pages.dev/posts/2315-count-asterisks/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2315-count-asterisks/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2325-decode-the-message/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2325-decode-the-message/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2337-move-pieces-to-obtain-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2337-move-pieces-to-obtain-a-string/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2343-query-kth-smallest-trimmed-number/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2343-query-kth-smallest-trimmed-number/Medium | Array, String, Divide and Conquer, Sorting, Heap (Priority Queue), Radix Sort, Quickselecthttps://leetcode-solutions-5zk.pages.dev/posts/2351-first-letter-to-appear-twice/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2351-first-letter-to-appear-twice/Easy | Hash Table, String, Bit Manipulation, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2353-design-a-food-rating-system/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2353-design-a-food-rating-system/Medium | Array, Hash Table, String, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2370-longest-ideal-subsequence/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2370-longest-ideal-subsequence/Medium | Hash Table, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2375-construct-smallest-number-from-di-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2375-construct-smallest-number-from-di-string/Medium | String, Backtracking, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2379-minimum-recolors-to-get-k-consecutive-black-blocks/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2379-minimum-recolors-to-get-k-consecutive-black-blocks/Easy | String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2380-time-needed-to-rearrange-a-binary-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2380-time-needed-to-rearrange-a-binary-string/Medium | String, Dynamic Programming, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2381-shifting-letters-ii/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2381-shifting-letters-ii/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2384-largest-palindromic-number/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2384-largest-palindromic-number/Medium | Hash Table, String, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2390-removing-stars-from-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2390-removing-stars-from-a-string/Medium | String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2399-check-distances-between-same-letters/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2399-check-distances-between-same-letters/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2405-optimal-partition-of-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2405-optimal-partition-of-string/Medium | Hash Table, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2409-count-days-spent-together/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2409-count-days-spent-together/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2414-length-of-the-longest-alphabetical-continuous-substring/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2414-length-of-the-longest-alphabetical-continuous-substring/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2416-sum-of-prefix-scores-of-strings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2416-sum-of-prefix-scores-of-strings/Hard | Array, String, Trie, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2418-sort-the-people/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2418-sort-the-people/Easy | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2423-remove-letter-to-equalize-frequency/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2423-remove-letter-to-equalize-frequency/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2430-maximum-deletions-on-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2430-maximum-deletions-on-a-string/Hard | String, Dynamic Programming, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/2434-using-a-robot-to-print-the-lexicographically-smallest-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2434-using-a-robot-to-print-the-lexicographically-smallest-string/Medium | Hash Table, String, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2437-number-of-valid-clock-times/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2437-number-of-valid-clock-times/Easy | String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2446-determine-if-two-events-have-conflict/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2446-determine-if-two-events-have-conflict/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2451-odd-string-difference/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2451-odd-string-difference/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2452-words-within-two-edits-of-dictionary/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2452-words-within-two-edits-of-dictionary/Medium | Array, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/2456-most-popular-video-creator/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2456-most-popular-video-creator/Medium | Array, Hash Table, String, Sorting, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/2468-split-message-based-on-limit/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2468-split-message-based-on-limit/Hard | String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2472-maximum-number-of-non-overlapping-palindrome-substrings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2472-maximum-number-of-non-overlapping-palindrome-substrings/Hard | Two Pointers, String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2478-number-of-beautiful-partitions/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2478-number-of-beautiful-partitions/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2483-minimum-penalty-for-a-shop/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2483-minimum-penalty-for-a-shop/Medium | String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2484-count-palindromic-subsequences/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2484-count-palindromic-subsequences/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2486-append-characters-to-string-to-make-subsequence/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2486-append-characters-to-string-to-make-subsequence/Medium | Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2490-circular-sentence/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2490-circular-sentence/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2496-maximum-value-of-a-string-in-an-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2496-maximum-value-of-a-string-in-an-array/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2506-count-pairs-of-similar-strings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2506-count-pairs-of-similar-strings/Easy | Array, Hash Table, String, Bit Manipulation, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2512-reward-top-k-students/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2512-reward-top-k-students/Medium | Array, Hash Table, String, Sorting, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/2514-count-anagrams/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2514-count-anagrams/Hard | Hash Table, Math, String, Combinatorics, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2515-shortest-distance-to-target-string-in-a-circular-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2515-shortest-distance-to-target-string-in-a-circular-array/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2516-take-k-of-each-character-from-left-and-right/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2516-take-k-of-each-character-from-left-and-right/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2522-partition-string-into-substrings-with-values-at-most-k/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2522-partition-string-into-substrings-with-values-at-most-k/Medium | String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2531-make-number-of-distinct-characters-equal/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2531-make-number-of-distinct-characters-equal/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2546-apply-bitwise-operations-to-make-strings-equal/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2546-apply-bitwise-operations-to-make-strings-equal/Medium | String, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2559-count-vowel-strings-in-ranges/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2559-count-vowel-strings-in-ranges/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2564-substring-xor-queries/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2564-substring-xor-queries/Medium | Array, Hash Table, String, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2565-subsequence-with-the-minimum-score/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2565-subsequence-with-the-minimum-score/Hard | Two Pointers, String, Binary Searchhttps://leetcode-solutions-5zk.pages.dev/posts/2573-find-the-string-with-lcp/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2573-find-the-string-with-lcp/Hard | Array, String, Dynamic Programming, Greedy, Union-Find, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/2575-find-the-divisibility-array-of-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2575-find-the-divisibility-array-of-a-string/Medium | Array, Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/2586-count-the-number-of-vowel-strings-in-range/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2586-count-the-number-of-vowel-strings-in-range/Easy | Array, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2606-find-the-substring-with-maximum-cost/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2606-find-the-substring-with-maximum-cost/Medium | Array, Hash Table, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2609-find-the-longest-balanced-substring-of-a-binary-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2609-find-the-longest-balanced-substring-of-a-binary-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1286-iterator-for-combination/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1286-iterator-for-combination/Medium | String, Backtracking, Design, Iteratorhttps://leetcode-solutions-5zk.pages.dev/posts/1297-maximum-number-of-occurrences-of-a-substring/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1297-maximum-number-of-occurrences-of-a-substring/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1307-verbal-arithmetic-puzzle/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1307-verbal-arithmetic-puzzle/Hard | Array, Math, String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/1309-decrypt-string-from-alphabet-to-integer-mapping/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1309-decrypt-string-from-alphabet-to-integer-mapping/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1324-print-words-vertically/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1324-print-words-vertically/Medium | Array, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1328-break-a-palindrome/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1328-break-a-palindrome/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1332-remove-palindromic-subsequences/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1332-remove-palindromic-subsequences/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1347-minimum-number-of-steps-to-make-two-strings-anagram/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1347-minimum-number-of-steps-to-make-two-strings-anagram/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1348-tweet-counts-per-frequency/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1348-tweet-counts-per-frequency/Medium | Hash Table, String, Binary Search, Design, Sorting, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/1358-number-of-substrings-containing-all-three-characters/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1358-number-of-substrings-containing-all-three-characters/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1360-number-of-days-between-two-dates/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1360-number-of-days-between-two-dates/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1366-rank-teams-by-votes/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1366-rank-teams-by-votes/Medium | Array, Hash Table, String, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1370-increasing-decreasing-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1370-increasing-decreasing-string/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1371-find-the-longest-substring-containing-vowels-in-even-counts/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1371-find-the-longest-substring-containing-vowels-in-even-counts/Medium | Hash Table, String, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1374-generate-a-string-with-characters-that-have-odd-counts/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1374-generate-a-string-with-characters-that-have-odd-counts/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1392-longest-happy-prefix/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1392-longest-happy-prefix/Hard | String, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/1396-design-underground-system/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1396-design-underground-system/Medium | Hash Table, String, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1397-find-all-good-strings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1397-find-all-good-strings/Hard | String, Dynamic Programming, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/1400-construct-k-palindrome-strings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1400-construct-k-palindrome-strings/Medium | Hash Table, String, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1404-number-of-steps-to-reduce-a-number-in-binary-representation-to-one/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1404-number-of-steps-to-reduce-a-number-in-binary-representation-to-one/Medium | String, Bit Manipulation, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1408-string-matching-in-an-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1408-string-matching-in-an-array/Easy | Array, String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/1410-html-entity-parser/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1410-html-entity-parser/Medium | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1415-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1415-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/Medium | String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/1416-restore-the-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1416-restore-the-array/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1417-reformat-the-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1417-reformat-the-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1418-display-table-of-food-orders-in-a-restaurant/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1418-display-table-of-food-orders-in-a-restaurant/Medium | Array, Hash Table, String, Sorting, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/1419-minimum-number-of-frogs-croaking/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1419-minimum-number-of-frogs-croaking/Medium | String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1422-maximum-score-after-splitting-a-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1422-maximum-score-after-splitting-a-string/Easy | String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1433-check-if-a-string-can-break-another-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1433-check-if-a-string-can-break-another-string/Medium | String, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1436-destination-city/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1436-destination-city/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1446-consecutive-characters/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1446-consecutive-characters/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1451-rearrange-words-in-a-sentence/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1451-rearrange-words-in-a-sentence/Medium | String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1455-check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1455-check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/Easy | Two Pointers, String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/1456-maximum-number-of-vowels-in-a-substring-of-given-length/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1456-maximum-number-of-vowels-in-a-substring-of-given-length/Medium | String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1461-check-if-a-string-contains-all-binary-codes-of-size-k/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1461-check-if-a-string-contains-all-binary-codes-of-size-k/Medium | Hash Table, String, Bit Manipulation, Rolling Hash, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/1487-making-file-names-unique/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1487-making-file-names-unique/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1496-path-crossing/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1496-path-crossing/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1507-reformat-date/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1507-reformat-date/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1513-number-of-substrings-with-only-1s/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1513-number-of-substrings-with-only-1s/Medium | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1520-maximum-number-of-non-overlapping-substrings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1520-maximum-number-of-non-overlapping-substrings/Hard | Hash Table, String, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1525-number-of-good-ways-to-split-a-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1525-number-of-good-ways-to-split-a-string/Medium | Hash Table, String, Dynamic Programming, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/1528-shuffle-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1528-shuffle-string/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1529-minimum-suffix-flips/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1529-minimum-suffix-flips/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1531-string-compression-ii/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1531-string-compression-ii/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1540-can-convert-string-in-k-moves/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1540-can-convert-string-in-k-moves/Medium | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1541-minimum-insertions-to-balance-a-parentheses-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1541-minimum-insertions-to-balance-a-parentheses-string/Medium | String, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1542-find-longest-awesome-substring/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1542-find-longest-awesome-substring/Hard | Hash Table, String, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/1544-make-the-string-great/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1544-make-the-string-great/Easy | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1545-find-kth-bit-in-nth-binary-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1545-find-kth-bit-in-nth-binary-string/Medium | String, Recursion, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1556-thousand-separator/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1556-thousand-separator/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1573-number-of-ways-to-split-a-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1573-number-of-ways-to-split-a-string/Medium | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1576-replace-all-s-to-avoid-consecutive-repeating-characters/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1576-replace-all-s-to-avoid-consecutive-repeating-characters/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1578-minimum-time-to-make-rope-colorful/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1578-minimum-time-to-make-rope-colorful/Medium | Array, String, Dynamic Programming, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1585-check-if-string-is-transformable-with-substring-sort-operations/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1585-check-if-string-is-transformable-with-substring-sort-operations/Hard | String, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1592-rearrange-spaces-between-words/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1592-rearrange-spaces-between-words/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1593-split-a-string-into-the-max-number-of-unique-substrings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1593-split-a-string-into-the-max-number-of-unique-substrings/Medium | Hash Table, String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/1598-crawler-log-folder/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1598-crawler-log-folder/Easy | Array, String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1604-alert-using-same-key-card-three-or-more-times-in-a-one-hour-period/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1604-alert-using-same-key-card-three-or-more-times-in-a-one-hour-period/Medium | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1614-maximum-nesting-depth-of-the-parentheses/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1614-maximum-nesting-depth-of-the-parentheses/Easy | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1616-split-two-strings-to-make-palindrome/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1616-split-two-strings-to-make-palindrome/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1624-largest-substring-between-two-equal-characters/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1624-largest-substring-between-two-equal-characters/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1639-number-of-ways-to-form-a-target-string-given-a-dictionary/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1639-number-of-ways-to-form-a-target-string-given-a-dictionary/Hard | Array, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1647-minimum-deletions-to-make-character-frequencies-unique/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1647-minimum-deletions-to-make-character-frequencies-unique/Medium | Hash Table, String, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1653-minimum-deletions-to-make-string-balanced/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1653-minimum-deletions-to-make-string-balanced/Medium | String, Dynamic Programming, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1662-check-if-two-string-arrays-are-equivalent/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1662-check-if-two-string-arrays-are-equivalent/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1663-smallest-string-with-a-given-numeric-value/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1663-smallest-string-with-a-given-numeric-value/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1668-maximum-repeating-substring/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1668-maximum-repeating-substring/Easy | String, Dynamic Programming, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/1678-goal-parser-interpretation/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1678-goal-parser-interpretation/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1689-partitioning-into-minimum-number-of-deci-binary-numbers/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1689-partitioning-into-minimum-number-of-deci-binary-numbers/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1694-reformat-phone-number/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1694-reformat-phone-number/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1702-maximum-binary-string-after-change/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1702-maximum-binary-string-after-change/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1704-determine-if-string-halves-are-alike/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1704-determine-if-string-halves-are-alike/Easy | String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1717-maximum-score-from-removing-substrings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1717-maximum-score-from-removing-substrings/Medium | String, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1736-latest-time-by-replacing-hidden-digits/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1736-latest-time-by-replacing-hidden-digits/Easy | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1737-change-minimum-characters-to-satisfy-one-of-three-conditions/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1737-change-minimum-characters-to-satisfy-one-of-three-conditions/Medium | Hash Table, String, Counting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1745-palindrome-partitioning-iv/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1745-palindrome-partitioning-iv/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1750-minimum-length-of-string-after-deleting-similar-ends/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1750-minimum-length-of-string-after-deleting-similar-ends/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1754-largest-merge-of-two-strings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1754-largest-merge-of-two-strings/Medium | Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1758-minimum-changes-to-make-alternating-binary-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1758-minimum-changes-to-make-alternating-binary-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1759-count-number-of-homogenous-substrings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1759-count-number-of-homogenous-substrings/Medium | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1763-longest-nice-substring/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1763-longest-nice-substring/Easy | Hash Table, String, Divide and Conquer, Bit Manipulation, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1768-merge-strings-alternately/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1768-merge-strings-alternately/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1769-minimum-number-of-operations-to-move-all-balls-to-each-box/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1769-minimum-number-of-operations-to-move-all-balls-to-each-box/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1773-count-items-matching-a-rule/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1773-count-items-matching-a-rule/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1781-sum-of-beauty-of-all-substrings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1781-sum-of-beauty-of-all-substrings/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1784-check-if-binary-string-has-at-most-one-segment-of-ones/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1784-check-if-binary-string-has-at-most-one-segment-of-ones/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1790-check-if-one-string-swap-can-make-strings-equal/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1790-check-if-one-string-swap-can-make-strings-equal/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1796-second-largest-digit-in-a-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1796-second-largest-digit-in-a-string/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1807-evaluate-the-bracket-pairs-of-a-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1807-evaluate-the-bracket-pairs-of-a-string/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1812-determine-color-of-a-chessboard-square/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1812-determine-color-of-a-chessboard-square/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1813-sentence-similarity-iii/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1813-sentence-similarity-iii/Medium | Array, Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1816-truncate-sentence/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1816-truncate-sentence/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1830-minimum-number-of-operations-to-make-string-sorted/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1830-minimum-number-of-operations-to-make-string-sorted/Hard | Hash Table, Math, String, Combinatorics, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1832-check-if-the-sentence-is-pangram/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1832-check-if-the-sentence-is-pangram/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1844-replace-all-digits-with-characters/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1844-replace-all-digits-with-characters/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1849-splitting-a-string-into-descending-consecutive-values/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1849-splitting-a-string-into-descending-consecutive-values/Medium | String, Backtracking, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/1850-minimum-adjacent-swaps-to-reach-the-kth-smallest-number/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1850-minimum-adjacent-swaps-to-reach-the-kth-smallest-number/Medium | Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1857-largest-color-value-in-a-directed-graph/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1857-largest-color-value-in-a-directed-graph/Hard | Hash Table, String, Dynamic Programming, Graph Theory, Topological Sort, Memoization, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1859-sorting-the-sentence/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1859-sorting-the-sentence/Easy | String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1864-minimum-number-of-swaps-to-make-the-binary-string-alternating/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1864-minimum-number-of-swaps-to-make-the-binary-string-alternating/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1869-longer-contiguous-segments-of-ones-than-zeros/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1869-longer-contiguous-segments-of-ones-than-zeros/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1871-jump-game-vii/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1871-jump-game-vii/Medium | String, Dynamic Programming, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1876-substrings-of-size-three-with-distinct-characters/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1876-substrings-of-size-three-with-distinct-characters/Easy | Hash Table, String, Sliding Window, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1880-check-if-word-equals-summation-of-two-words/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1880-check-if-word-equals-summation-of-two-words/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1881-maximum-value-after-insertion/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1881-maximum-value-after-insertion/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1888-minimum-number-of-flips-to-make-the-binary-string-alternating/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1888-minimum-number-of-flips-to-make-the-binary-string-alternating/Medium | String, Dynamic Programming, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1897-redistribute-characters-to-make-all-strings-equal/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1897-redistribute-characters-to-make-all-strings-equal/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1903-largest-odd-number-in-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1903-largest-odd-number-in-string/Easy | Math, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1904-the-number-of-full-rounds-you-have-played/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1904-the-number-of-full-rounds-you-have-played/Medium | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1910-remove-all-occurrences-of-a-substring/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1910-remove-all-occurrences-of-a-substring/Medium | String, Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1927-sum-game/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1927-sum-game/Medium | Math, String, Greedy, Game Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/1930-unique-length-3-palindromic-subsequences/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1930-unique-length-3-palindromic-subsequences/Medium | Hash Table, String, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1935-maximum-number-of-words-you-can-type/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1935-maximum-number-of-words-you-can-type/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1941-check-if-all-characters-have-equal-number-of-occurrences/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1941-check-if-all-characters-have-equal-number-of-occurrences/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1945-sum-of-digits-of-string-after-convert/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1945-sum-of-digits-of-string-after-convert/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1946-largest-number-after-mutating-substring/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1946-largest-number-after-mutating-substring/Medium | Array, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1948-delete-duplicate-folders-in-system/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1948-delete-duplicate-folders-in-system/Hard | Array, Hash Table, String, Trie, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/1957-delete-characters-to-make-fancy-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1957-delete-characters-to-make-fancy-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1960-maximum-product-of-the-length-of-two-palindromic-substrings/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1960-maximum-product-of-the-length-of-two-palindromic-substrings/Hard | Two Pointers, String, Rolling Hash, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/1961-check-if-string-is-a-prefix-of-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1961-check-if-string-is-a-prefix-of-array/Easy | Array, Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1963-minimum-number-of-swaps-to-make-the-string-balanced/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1963-minimum-number-of-swaps-to-make-the-string-balanced/Medium | Two Pointers, String, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1967-number-of-strings-that-appear-as-substrings-in-word/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1967-number-of-strings-that-appear-as-substrings-in-word/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1974-minimum-time-to-type-word-using-special-typewriter/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1974-minimum-time-to-type-word-using-special-typewriter/Easy | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1977-number-of-ways-to-separate-numbers/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1977-number-of-ways-to-separate-numbers/Hard | String, Dynamic Programming, Suffix Arrayhttps://leetcode-solutions-5zk.pages.dev/posts/1980-find-unique-binary-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1980-find-unique-binary-string/Medium | Array, Hash Table, String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/1985-find-the-kth-largest-integer-in-the-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1985-find-the-kth-largest-integer-in-the-array/Medium | Array, String, Divide and Conquer, Sorting, Heap (Priority Queue), Quickselecthttps://leetcode-solutions-5zk.pages.dev/posts/1987-number-of-unique-good-subsequences/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1987-number-of-unique-good-subsequences/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/2000-reverse-prefix-of-word/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2000-reverse-prefix-of-word/Easy | Two Pointers, String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1002-find-common-characters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1002-find-common-characters/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1016-binary-string-with-substrings-representing-1-to-n/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1016-binary-string-with-substrings-representing-1-to-n/Medium | Hash Table, String, Bit Manipulation, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1021-remove-outermost-parentheses/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1021-remove-outermost-parentheses/Easy | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1028-recover-a-tree-from-preorder-traversal/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1028-recover-a-tree-from-preorder-traversal/Hard | String, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/1032-stream-of-characters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1032-stream-of-characters/Hard | Array, String, Design, Trie, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/1041-robot-bounded-in-circle/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1041-robot-bounded-in-circle/Medium | Math, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1044-longest-duplicate-substring/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1044-longest-duplicate-substring/Hard | String, Binary Search, Sliding Window, Rolling Hash, Suffix Array, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/1047-remove-all-adjacent-duplicates-in-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1047-remove-all-adjacent-duplicates-in-string/Easy | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1048-longest-string-chain/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1048-longest-string-chain/Medium | Array, Hash Table, Two Pointers, String, Dynamic Programming, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1061-lexicographically-smallest-equivalent-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1061-lexicographically-smallest-equivalent-string/Medium | String, Union-Findhttps://leetcode-solutions-5zk.pages.dev/posts/1071-greatest-common-divisor-of-strings/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1071-greatest-common-divisor-of-strings/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1078-occurrences-after-bigram/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1078-occurrences-after-bigram/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1079-letter-tile-possibilities/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1079-letter-tile-possibilities/Medium | Hash Table, String, Backtracking, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1081-smallest-subsequence-of-distinct-characters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1081-smallest-subsequence-of-distinct-characters/Medium | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1096-brace-expansion-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1096-brace-expansion-ii/Hard | Hash Table, String, Backtracking, Stack, Breadth-First Search, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1106-parsing-a-boolean-expression/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1106-parsing-a-boolean-expression/Hard | String, Stack, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/1108-defanging-an-ip-address/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1108-defanging-an-ip-address/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1111-maximum-nesting-depth-of-two-valid-parentheses-strings/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1111-maximum-nesting-depth-of-two-valid-parentheses-strings/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1138-alphabet-board-path/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1138-alphabet-board-path/Medium | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1147-longest-chunked-palindrome-decomposition/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1147-longest-chunked-palindrome-decomposition/Hard | Two Pointers, String, Dynamic Programming, Greedy, Rolling Hash, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/1154-day-of-the-year/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1154-day-of-the-year/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1156-swap-for-longest-repeated-character-substring/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1156-swap-for-longest-repeated-character-substring/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1160-find-words-that-can-be-formed-by-characters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1160-find-words-that-can-be-formed-by-characters/Easy | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1163-last-substring-in-lexicographical-order/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1163-last-substring-in-lexicographical-order/Hard | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/1170-compare-strings-by-frequency-of-the-smallest-character/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1170-compare-strings-by-frequency-of-the-smallest-character/Medium | Array, Hash Table, String, Binary Search, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1177-can-make-palindrome-from-substring/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1177-can-make-palindrome-from-substring/Medium | Array, Hash Table, String, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1178-number-of-valid-words-for-each-puzzle/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1178-number-of-valid-words-for-each-puzzle/Hard | Array, Hash Table, String, Bit Manipulation, Triehttps://leetcode-solutions-5zk.pages.dev/posts/1189-maximum-number-of-balloons/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1189-maximum-number-of-balloons/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1190-reverse-substrings-between-each-pair-of-parentheses/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1190-reverse-substrings-between-each-pair-of-parentheses/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1202-smallest-string-with-swaps/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1202-smallest-string-with-swaps/Medium | Array, Hash Table, String, Depth-First Search, Breadth-First Search, Union-Find, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1208-get-equal-substrings-within-budget/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1208-get-equal-substrings-within-budget/Medium | String, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1209-remove-all-adjacent-duplicates-in-string-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1209-remove-all-adjacent-duplicates-in-string-ii/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1221-split-a-string-in-balanced-strings/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1221-split-a-string-in-balanced-strings/Easy | String, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1233-remove-sub-folders-from-the-filesystem/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1233-remove-sub-folders-from-the-filesystem/Medium | Array, String, Depth-First Search, Triehttps://leetcode-solutions-5zk.pages.dev/posts/1234-replace-the-substring-for-balanced-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1234-replace-the-substring-for-balanced-string/Medium | String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1247-minimum-swaps-to-make-strings-equal/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1247-minimum-swaps-to-make-strings-equal/Medium | Math, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1249-minimum-remove-to-make-valid-parentheses/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1249-minimum-remove-to-make-valid-parentheses/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1255-maximum-score-words-formed-by-letters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1255-maximum-score-words-formed-by-letters/Hard | Array, Hash Table, String, Dynamic Programming, Backtracking, Bit Manipulation, Counting, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/1268-search-suggestions-system/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1268-search-suggestions-system/Medium | Array, String, Binary Search, Trie, Sorting, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/1278-palindrome-partitioning-iii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1278-palindrome-partitioning-iii/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0721-accounts-merge/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0721-accounts-merge/Medium | Array, Hash Table, String, Depth-First Search, Breadth-First Search, Union-Find, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0726-number-of-atoms/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0726-number-of-atoms/Hard | Hash Table, String, Stack, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0748-shortest-completing-word/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0748-shortest-completing-word/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0752-open-the-lock/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0752-open-the-lock/Medium | Array, Hash Table, String, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0753-cracking-the-safe/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0753-cracking-the-safe/Hard | String, Depth-First Search, Graph Theory, Eulerian Circuithttps://leetcode-solutions-5zk.pages.dev/posts/0756-pyramid-transition-matrix/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0756-pyramid-transition-matrix/Medium | Hash Table, String, Backtracking, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/0761-special-binary-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0761-special-binary-string/Hard | String, Divide and Conquer, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0763-partition-labels/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0763-partition-labels/Medium | Hash Table, Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0767-reorganize-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0767-reorganize-string/Medium | Hash Table, String, Greedy, Sorting, Heap (Priority Queue), Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0771-jewels-and-stones/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0771-jewels-and-stones/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0777-swap-adjacent-in-lr-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0777-swap-adjacent-in-lr-string/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0784-letter-case-permutation/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0784-letter-case-permutation/Medium | String, Backtracking, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/0791-custom-sort-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0791-custom-sort-string/Medium | Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0796-rotate-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0796-rotate-string/Easy | String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/0804-unique-morse-code-words/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0804-unique-morse-code-words/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0806-number-of-lines-to-write-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0806-number-of-lines-to-write-string/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0816-ambiguous-coordinates/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0816-ambiguous-coordinates/Medium | String, Backtracking, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/0819-most-common-word/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0819-most-common-word/Easy | Array, Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0820-short-encoding-of-words/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0820-short-encoding-of-words/Medium | Array, Hash Table, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0821-shortest-distance-to-a-character/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0821-shortest-distance-to-a-character/Easy | Array, Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0824-goat-latin/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0824-goat-latin/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0828-count-unique-characters-of-all-substrings-of-a-given-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0828-count-unique-characters-of-all-substrings-of-a-given-string/Hard | Hash Table, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0830-positions-of-large-groups/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0830-positions-of-large-groups/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0831-masking-personal-information/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0831-masking-personal-information/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0833-find-and-replace-in-string/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0833-find-and-replace-in-string/Medium | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0838-push-dominoes/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0838-push-dominoes/Medium | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0842-split-array-into-fibonacci-sequence/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0842-split-array-into-fibonacci-sequence/Medium | String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/0848-shifting-letters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0848-shifting-letters/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0854-k-similar-strings/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0854-k-similar-strings/Hard | Hash Table, String, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0856-score-of-parentheses/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0856-score-of-parentheses/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0859-buddy-strings/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0859-buddy-strings/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0880-decoded-string-at-index/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0880-decoded-string-at-index/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0884-uncommon-words-from-two-sentences/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0884-uncommon-words-from-two-sentences/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0890-find-and-replace-pattern/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0890-find-and-replace-pattern/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0899-orderly-queue/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0899-orderly-queue/Hard | Math, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0902-numbers-at-most-n-given-digit-set/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0902-numbers-at-most-n-given-digit-set/Hard | Array, Math, String, Binary Search, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0903-valid-permutations-for-di-sequence/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0903-valid-permutations-for-di-sequence/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0906-super-palindromes/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0906-super-palindromes/Hard | Math, String, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/0916-word-subsets/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0916-word-subsets/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0917-reverse-only-letters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0917-reverse-only-letters/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0921-minimum-add-to-make-parentheses-valid/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0921-minimum-add-to-make-parentheses-valid/Medium | String, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0925-long-pressed-name/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0925-long-pressed-name/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0926-flip-string-to-monotone-increasing/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0926-flip-string-to-monotone-increasing/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0936-stamping-the-sequence/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0936-stamping-the-sequence/Hard | String, Stack, Greedy, Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0940-distinct-subsequences-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0940-distinct-subsequences-ii/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0942-di-string-match/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0942-di-string-match/Easy | Array, Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0944-delete-columns-to-make-sorted/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0944-delete-columns-to-make-sorted/Easy | Array, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0949-largest-time-for-given-digits/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0949-largest-time-for-given-digits/Medium | Array, String, Backtracking, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/0953-verifying-an-alien-dictionary/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0953-verifying-an-alien-dictionary/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0955-delete-columns-to-make-sorted-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0955-delete-columns-to-make-sorted-ii/Medium | Array, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0960-delete-columns-to-make-sorted-iii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0960-delete-columns-to-make-sorted-iii/Hard | Array, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0966-vowel-spellchecker/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0966-vowel-spellchecker/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0972-equal-rational-numbers/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0972-equal-rational-numbers/Hard | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0981-time-based-key-value-store/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0981-time-based-key-value-store/Medium | Hash Table, String, Binary Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/0984-string-without-aaa-or-bbb/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0984-string-without-aaa-or-bbb/Medium | String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0990-satisfiability-of-equality-equations/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0990-satisfiability-of-equality-equations/Medium | Array, String, Union-Find, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/0481-magical-string/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0481-magical-string/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0482-license-key-formatting/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0482-license-key-formatting/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0500-keyboard-row/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0500-keyboard-row/Easy | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0504-base-7/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0504-base-7/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0520-detect-capital/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0520-detect-capital/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0521-longest-uncommon-subsequence-i/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0521-longest-uncommon-subsequence-i/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0535-encode-and-decode-tinyurl/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0535-encode-and-decode-tinyurl/Medium | Hash Table, String, Design, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0537-complex-number-multiplication/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0537-complex-number-multiplication/Medium | Math, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0539-minimum-time-difference/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0539-minimum-time-difference/Medium | Array, Math, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0541-reverse-string-ii/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0541-reverse-string-ii/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0551-student-attendance-record-i/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0551-student-attendance-record-i/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0556-next-greater-element-iii/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0556-next-greater-element-iii/Medium | Math, Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0557-reverse-words-in-a-string-iii/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0557-reverse-words-in-a-string-iii/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0564-find-the-closest-palindrome/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0564-find-the-closest-palindrome/Hard | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0567-permutation-in-string/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0567-permutation-in-string/Medium | Hash Table, Two Pointers, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0591-tag-validator/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0591-tag-validator/Hard | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0592-fraction-addition-and-subtraction/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0592-fraction-addition-and-subtraction/Medium | Math, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0606-construct-string-from-binary-tree/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0606-construct-string-from-binary-tree/Medium | String, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0609-find-duplicate-file-in-system/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0609-find-duplicate-file-in-system/Medium | Array, Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0639-decode-ways-ii/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0639-decode-ways-ii/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0647-palindromic-substrings/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0647-palindromic-substrings/Medium | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0648-replace-words/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0648-replace-words/Medium | Array, Hash Table, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0649-dota2-senate/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0649-dota2-senate/Medium | String, Greedy, Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0657-robot-return-to-origin/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0657-robot-return-to-origin/Easy | String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0664-strange-printer/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0664-strange-printer/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0676-implement-magic-dictionary/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0676-implement-magic-dictionary/Medium | Hash Table, String, Depth-First Search, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0678-valid-parenthesis-string/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0678-valid-parenthesis-string/Medium | String, Dynamic Programming, Stack, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0680-valid-palindrome-ii/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0680-valid-palindrome-ii/Easy | Two Pointers, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0686-repeated-string-match/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0686-repeated-string-match/Medium | String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/0691-stickers-to-spell-word/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0691-stickers-to-spell-word/Hard | Array, Hash Table, String, Dynamic Programming, Backtracking, Bit Manipulation, Memoization, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/0696-count-binary-substrings/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0696-count-binary-substrings/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0709-to-lower-case/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0709-to-lower-case/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0720-longest-word-in-dictionary/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0720-longest-word-in-dictionary/Medium | Array, Hash Table, String, Trie, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0331-verify-preorder-serialization-of-a-binary-tree/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0331-verify-preorder-serialization-of-a-binary-tree/Medium | String, Stack, Tree, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0332-reconstruct-itinerary/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0332-reconstruct-itinerary/Hard | Array, String, Depth-First Search, Graph Theory, Sorting, Heap (Priority Queue), Eulerian Circuithttps://leetcode-solutions-5zk.pages.dev/posts/0336-palindrome-pairs/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0336-palindrome-pairs/Hard | Array, Hash Table, String, Trie, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0344-reverse-string/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0344-reverse-string/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0345-reverse-vowels-of-a-string/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0345-reverse-vowels-of-a-string/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0383-ransom-note/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0383-ransom-note/Easy | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0385-mini-parser/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0385-mini-parser/Medium | String, Stack, Depth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0387-first-unique-character-in-a-string/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0387-first-unique-character-in-a-string/Easy | Hash Table, String, Queue, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0388-longest-absolute-file-path/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0388-longest-absolute-file-path/Medium | String, Stack, Depth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0389-find-the-difference/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0389-find-the-difference/Easy | Hash Table, String, Bit Manipulation, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0392-is-subsequence/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0392-is-subsequence/Easy | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0394-decode-string/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0394-decode-string/Medium | String, Stack, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/0399-evaluate-division/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0399-evaluate-division/Medium | Array, String, Depth-First Search, Breadth-First Search, Union-Find, Graph Theory, Shortest Pathhttps://leetcode-solutions-5zk.pages.dev/posts/0402-remove-k-digits/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0402-remove-k-digits/Medium | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0405-convert-a-number-to-hexadecimal/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0405-convert-a-number-to-hexadecimal/Easy | Math, String, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/0409-longest-palindrome/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0409-longest-palindrome/Easy | Hash Table, String, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/0412-fizz-buzz/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0412-fizz-buzz/Easy | Math, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0415-add-strings/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0415-add-strings/Easy | Math, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0420-strong-password-checker/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0420-strong-password-checker/Hard | String, Greedy, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/0423-reconstruct-original-digits-from-english/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0423-reconstruct-original-digits-from-english/Medium | Hash Table, Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0424-longest-repeating-character-replacement/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0424-longest-repeating-character-replacement/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0433-minimum-genetic-mutation/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0433-minimum-genetic-mutation/Medium | Hash Table, String, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0434-number-of-segments-in-a-string/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0434-number-of-segments-in-a-string/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0438-find-all-anagrams-in-a-string/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0438-find-all-anagrams-in-a-string/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0443-string-compression/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0443-string-compression/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0449-serialize-and-deserialize-bst/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0449-serialize-and-deserialize-bst/Medium | String, Tree, Depth-First Search, Breadth-First Search, Design, Binary Search Tree, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0451-sort-characters-by-frequency/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0451-sort-characters-by-frequency/Medium | Hash Table, String, Sorting, Heap (Priority Queue), Bucket Sort, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0459-repeated-substring-pattern/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0459-repeated-substring-pattern/Easy | String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/0466-count-the-repetitions/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0466-count-the-repetitions/Hard | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0468-validate-ip-address/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0468-validate-ip-address/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0010-regular-expression-matching/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0010-regular-expression-matching/Hard | String, Dynamic Programming, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/0012-integer-to-roman/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0012-integer-to-roman/Medium | Hash Table, Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0125-valid-palindrome/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0125-valid-palindrome/Easy | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0013-roman-to-integer/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0013-roman-to-integer/Easy | Hash Table, Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0139-word-break/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0139-word-break/Medium | Array, Hash Table, String, Dynamic Programming, Trie, Memoizationhttps://leetcode-solutions-5zk.pages.dev/posts/0014-longest-common-prefix/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0014-longest-common-prefix/Easy | Array, String, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0140-word-break-ii/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0140-word-break-ii/Hard | Array, Hash Table, String, Dynamic Programming, Backtracking, Trie, Memoizationhttps://leetcode-solutions-5zk.pages.dev/posts/0151-reverse-words-in-a-string/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0151-reverse-words-in-a-string/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0165-compare-version-numbers/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0165-compare-version-numbers/Medium | Two Pointers, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0166-fraction-to-recurring-decimal/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0166-fraction-to-recurring-decimal/Medium | Hash Table, Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0168-excel-sheet-column-title/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0168-excel-sheet-column-title/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0017-letter-combinations-of-a-phone-number/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0017-letter-combinations-of-a-phone-number/Medium | Hash Table, String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/0171-excel-sheet-column-number/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0171-excel-sheet-column-number/Easy | Math, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0179-largest-number/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0179-largest-number/Medium | Array, String, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0187-repeated-dna-sequences/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0187-repeated-dna-sequences/Medium | Hash Table, String, Bit Manipulation, Sliding Window, Rolling Hash, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0205-isomorphic-strings/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0205-isomorphic-strings/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0208-implement-trie-prefix-tree/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0208-implement-trie-prefix-tree/Medium | Hash Table, String, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0211-design-add-and-search-words-data-structure/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0211-design-add-and-search-words-data-structure/Medium | String, Depth-First Search, Design, Triehttps://leetcode-solutions-5zk.pages.dev/posts/0212-word-search-ii/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0212-word-search-ii/Hard | Array, String, Backtracking, Trie, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/0214-shortest-palindrome/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0214-shortest-palindrome/Hard | String, Rolling Hash, String Matching, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0022-generate-parentheses/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0022-generate-parentheses/Medium | String, Dynamic Programming, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/0224-basic-calculator/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0224-basic-calculator/Hard | Math, String, Stack, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/0227-basic-calculator-ii/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0227-basic-calculator-ii/Medium | Math, String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0241-different-ways-to-add-parentheses/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0241-different-ways-to-add-parentheses/Medium | Math, String, Dynamic Programming, Recursion, Memoizationhttps://leetcode-solutions-5zk.pages.dev/posts/0242-valid-anagram/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0242-valid-anagram/Easy | Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0257-binary-tree-paths/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0257-binary-tree-paths/Easy | String, Backtracking, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0273-integer-to-english-words/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0273-integer-to-english-words/Hard | Math, String, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/0028-find-the-index-of-the-first-occurrence-in-a-string/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0028-find-the-index-of-the-first-occurrence-in-a-string/Easy | Two Pointers, String, String Matchinghttps://leetcode-solutions-5zk.pages.dev/posts/0282-expression-add-operators/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0282-expression-add-operators/Hard | Math, String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/0290-word-pattern/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0290-word-pattern/Easy | Hash Table, Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0297-serialize-and-deserialize-binary-tree/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0297-serialize-and-deserialize-binary-tree/Hard | String, Tree, Depth-First Search, Breadth-First Search, Design, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0299-bulls-and-cows/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0299-bulls-and-cows/Medium | Hash Table, String, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0003-longest-substring-without-repeating-characters/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0003-longest-substring-without-repeating-characters/Medium | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0030-substring-with-concatenation-of-all-words/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0030-substring-with-concatenation-of-all-words/Hard | Hash Table, String, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0301-remove-invalid-parentheses/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0301-remove-invalid-parentheses/Hard | String, Backtracking, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0316-remove-duplicate-letters/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0316-remove-duplicate-letters/Medium | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0032-longest-valid-parentheses/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0032-longest-valid-parentheses/Hard | String, Dynamic Programming, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0043-multiply-strings/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0043-multiply-strings/Medium | Math, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0044-wildcard-matching/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0044-wildcard-matching/Hard | String, Dynamic Programming, Greedy, Recursionhttps://leetcode-solutions-5zk.pages.dev/posts/0049-group-anagrams/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0049-group-anagrams/Medium | Array, Hash Table, String, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0005-longest-palindromic-substring/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0005-longest-palindromic-substring/Medium | Two Pointers, String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0058-length-of-last-word/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0058-length-of-last-word/Easy | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0006-zigzag-conversion/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0006-zigzag-conversion/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0065-valid-number/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0065-valid-number/Hard | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0067-add-binary/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0067-add-binary/Easy | Math, String, Bit Manipulation, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0068-text-justification/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0068-text-justification/Hard | Array, String, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/0071-simplify-path/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0071-simplify-path/Medium | String, Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0079-word-search/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0079-word-search/Medium | Array, String, Backtracking, Depth-First Search, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/0008-string-to-integer-atoi/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0008-string-to-integer-atoi/Medium | Stringhttps://leetcode-solutions-5zk.pages.dev/posts/0087-scramble-string/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0087-scramble-string/Hard | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0091-decode-ways/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0091-decode-ways/Medium | String, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0093-restore-ip-addresses/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0093-restore-ip-addresses/Medium | String, Backtrackinghttps://leetcode-solutions-5zk.pages.dev/posts/0097-interleaving-string/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0097-interleaving-string/Medium | String, Dynamic Programming