https://leetcode-solutions-5zk.pages.dev/tags/hash-table/Recent content in Hash Table on LeetCode 题解笔记Hugozh-cn2026 ZenzZweiMon, 11 May 2026 12:12:02 +0800https://leetcode-solutions-5zk.pages.dev/posts/3013-divide-an-array-into-subarrays-with-minimum-cost-ii/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3013-divide-an-array-into-subarrays-with-minimum-cost-ii/Hard | Array, Hash Table, Sliding Window, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/3321-find-x-sum-of-all-k-long-subarrays-ii/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3321-find-x-sum-of-all-k-long-subarrays-ii/Hard | Array, Hash Table, Sliding Window, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/3548-equal-sum-grid-partition-ii/Wed, 06 May 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3548-equal-sum-grid-partition-ii/Hard | Array, Hash Table, Matrix, Enumeration, Prefix Sumhttps://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/1711-count-good-meals/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1711-count-good-meals/Medium | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/1719-number-of-ways-to-reconstruct-a-tree/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1719-number-of-ways-to-reconstruct-a-tree/Hard | Array, Hash Table, Tree, Graph Theory, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1787-make-the-xor-of-all-segments-equal-to-zero/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1787-make-the-xor-of-all-segments-equal-to-zero/Hard | Array, Hash Table, Dynamic Programming, Bit Manipulation, Countinghttps://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/1994-the-number-of-good-subsets/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1994-the-number-of-good-subsets/Hard | Array, Hash Table, Math, Dynamic Programming, Bit Manipulation, Counting, Number Theory, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/1995-count-special-quadruplets/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1995-count-special-quadruplets/Easy | Array, Hash Table, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2006-count-number-of-pairs-with-absolute-difference-k/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2006-count-number-of-pairs-with-absolute-difference-k/Easy | Array, Hash Table, Countinghttps://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/2025-maximum-number-of-ways-to-partition-an-array/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2025-maximum-number-of-ways-to-partition-an-array/Hard | Array, Hash Table, Counting, Enumeration, Prefix Sumhttps://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/2261-k-divisible-elements-subarrays/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2261-k-divisible-elements-subarrays/Medium | Array, Hash Table, Trie, Rolling Hash, Hash Function, Enumerationhttps://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/0036-valid-sudoku/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0036-valid-sudoku/Medium | Array, Hash Table, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/0037-sudoku-solver/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0037-sudoku-solver/Hard | Array, Hash Table, Backtracking, Matrixhttps://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/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/1224-maximum-equal-frequency/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1224-maximum-equal-frequency/Hard | Array, Hash Tablehttps://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/1346-check-if-n-and-its-double-exist/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1346-check-if-n-and-its-double-exist/Easy | Array, Hash Table, Two Pointers, Binary Search, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1442-count-triplets-that-can-form-two-arrays-of-equal-xor/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1442-count-triplets-that-can-form-two-arrays-of-equal-xor/Medium | Array, Hash Table, Math, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1443-minimum-time-to-collect-all-apples-in-a-tree/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1443-minimum-time-to-collect-all-apples-in-a-tree/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Searchhttps://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/1488-avoid-flood-in-the-city/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1488-avoid-flood-in-the-city/Medium | Array, Hash Table, Binary Search, Greedy, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/1577-number-of-ways-where-square-of-number-is-equal-to-product-of-two-numbers/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1577-number-of-ways-where-square-of-number-is-equal-to-product-of-two-numbers/Medium | Array, Hash Table, Math, Two Pointershttps://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/2766-relocate-marbles/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2766-relocate-marbles/Medium | Array, Hash Table, Sorting, Simulationhttps://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/2768-number-of-black-blocks/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2768-number-of-black-blocks/Medium | Array, Hash Table, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2780-minimum-index-of-a-valid-split/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2780-minimum-index-of-a-valid-split/Medium | Array, Hash Table, Sortinghttps://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/2784-check-if-array-is-good/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2784-check-if-array-is-good/Easy | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2791-count-paths-that-can-form-a-palindrome-in-a-tree/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2791-count-paths-that-can-form-a-palindrome-in-a-tree/Hard | Hash Table, Bit Manipulation, Tree, Depth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/2799-count-complete-subarrays-in-an-array/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2799-count-complete-subarrays-in-an-array/Medium | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/3572-maximize-ysum-by-picking-a-triplet-of-distinct-xvalues/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3572-maximize-ysum-by-picking-a-triplet-of-distinct-xvalues/Medium | Array, Hash Table, Greedy, Sorting, Heap (Priority Queue)https://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/0447-number-of-boomerangs/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0447-number-of-boomerangs/Medium | Array, Hash Table, Mathhttps://leetcode-solutions-5zk.pages.dev/posts/0480-sliding-window-median/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0480-sliding-window-median/Hard | Array, Hash Table, Sliding Window, Heap (Priority Queue)https://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/0560-subarray-sum-equals-k/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0560-subarray-sum-equals-k/Medium | Array, Hash Table, Prefix Sumhttps://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/0632-smallest-range-covering-elements-from-k-lists/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0632-smallest-range-covering-elements-from-k-lists/Hard | Array, Hash Table, Greedy, Sliding Window, Sorting, Heap (Priority Queue)https://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/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/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/0823-binary-trees-with-factors/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0823-binary-trees-with-factors/Medium | Array, Hash Table, Dynamic Programming, Sortinghttps://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/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/0904-fruit-into-baskets/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0904-fruit-into-baskets/Medium | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0923-3sum-with-multiplicity/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0923-3sum-with-multiplicity/Medium | Array, Hash Table, Two Pointers, Sorting, Countinghttps://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/0939-minimum-area-rectangle/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0939-minimum-area-rectangle/Medium | Array, Hash Table, Math, Geometry, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0959-regions-cut-by-slashes/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0959-regions-cut-by-slashes/Medium | Array, Hash Table, Depth-First Search, Breadth-First Search, Union-Find, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/0963-minimum-area-rectangle-ii/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0963-minimum-area-rectangle-ii/Medium | Array, Hash Table, Math, Geometryhttps://leetcode-solutions-5zk.pages.dev/posts/0970-powerful-integers/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0970-powerful-integers/Medium | Hash Table, Math, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/0982-triples-with-bitwise-and-equal-to-zero/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0982-triples-with-bitwise-and-equal-to-zero/Hard | Array, Hash Table, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/0996-number-of-squareful-arrays/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0996-number-of-squareful-arrays/Hard | Array, Hash Table, Math, Dynamic Programming, Backtracking, Bit Manipulation, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/3217-delete-nodes-from-linked-list-present-in-array/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3217-delete-nodes-from-linked-list-present-in-array/Medium | Array, Hash Table, Linked Listhttps://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/3224-minimum-array-changes-to-make-differences-equal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3224-minimum-array-changes-to-make-differences-equal/Medium | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3238-find-the-number-of-winning-players/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3238-find-the-number-of-winning-players/Easy | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3242-design-neighbor-sum-service/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3242-design-neighbor-sum-service/Easy | Array, Hash Table, Design, Matrix, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3265-count-almost-equal-pairs-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3265-count-almost-equal-pairs-i/Medium | Array, Hash Table, Sorting, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3267-count-almost-equal-pairs-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3267-count-almost-equal-pairs-ii/Hard | Array, Hash Table, Sorting, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3272-find-the-count-of-good-integers/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3272-find-the-count-of-good-integers/Hard | Hash Table, Math, Combinatorics, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3289-the-two-sneaky-numbers-of-digitville/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3289-the-two-sneaky-numbers-of-digitville/Easy | Array, Hash Table, Mathhttps://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/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/3311-construct-2d-grid-matching-graph-layout/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3311-construct-2d-grid-matching-graph-layout/Hard | Array, Hash Table, Graph Theory, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/3312-sorted-gcd-pair-queries/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3312-sorted-gcd-pair-queries/Hard | Array, Hash Table, Math, Binary Search, Combinatorics, Counting, Number Theory, Prefix Sumhttps://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/3318-find-x-sum-of-all-k-long-subarrays-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3318-find-x-sum-of-all-k-long-subarrays-i/Easy | Array, Hash Table, Sliding Window, Heap (Priority Queue)https://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/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/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/3351-sum-of-good-subsequences/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3351-sum-of-good-subsequences/Hard | Array, Hash Table, Dynamic Programminghttps://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/3371-identify-the-largest-outlier-in-an-array/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3371-identify-the-largest-outlier-in-an-array/Medium | Array, Hash Table, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3375-minimum-operations-to-make-array-values-equal-to-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3375-minimum-operations-to-make-array-values-equal-to-k/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3378-count-connected-components-in-lcm-graph/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3378-count-connected-components-in-lcm-graph/Hard | Array, Hash Table, Math, Union-Find, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3381-maximum-subarray-sum-with-length-divisible-by-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3381-maximum-subarray-sum-with-length-divisible-by-k/Medium | Array, Hash Table, Prefix Sumhttps://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/3395-subsequences-with-a-unique-middle-mode-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3395-subsequences-with-a-unique-middle-mode-i/Hard | Array, Hash Table, Math, Combinatoricshttps://leetcode-solutions-5zk.pages.dev/posts/3396-minimum-number-of-operations-to-make-elements-in-array-distinct/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3396-minimum-number-of-operations-to-make-elements-in-array-distinct/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3404-count-special-subsequences/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3404-count-special-subsequences/Medium | Array, Hash Table, Math, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3408-design-task-manager/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3408-design-task-manager/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://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/3425-longest-special-path/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3425-longest-special-path/Hard | Array, Hash Table, Tree, Depth-First Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3434-maximum-frequency-after-subarray-operation/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3434-maximum-frequency-after-subarray-operation/Medium | Array, Hash Table, Dynamic Programming, Greedy, Enumeration, Prefix Sumhttps://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/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/3447-assign-elements-to-groups-with-constraints/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3447-assign-elements-to-groups-with-constraints/Medium | Array, Hash Tablehttps://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/3471-find-the-largest-almost-missing-integer/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3471-find-the-largest-almost-missing-integer/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3483-unique-3-digit-even-numbers/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3483-unique-3-digit-even-numbers/Easy | Array, Hash Table, Recursion, Enumerationhttps://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/3486-longest-special-path-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3486-longest-special-path-ii/Hard | Array, Hash Table, Tree, Depth-First Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3487-maximum-unique-subarray-sum-after-deletion/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3487-maximum-unique-subarray-sum-after-deletion/Easy | Array, Hash Table, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3488-closest-equal-element-queries/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3488-closest-equal-element-queries/Medium | Array, Hash Table, Binary Searchhttps://leetcode-solutions-5zk.pages.dev/posts/3493-properties-graph/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3493-properties-graph/Medium | Array, Hash Table, Depth-First Search, Breadth-First Search, Union-Find, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3505-minimum-operations-to-make-elements-within-k-subarrays-equal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3505-minimum-operations-to-make-elements-within-k-subarrays-equal/Hard | Array, Hash Table, Math, Dynamic Programming, Sliding Window, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/3507-minimum-pair-removal-to-sort-array-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3507-minimum-pair-removal-to-sort-array-i/Easy | Array, Hash Table, Linked List, Heap (Priority Queue), Simulation, Doubly-Linked List, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/3508-implement-router/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3508-implement-router/Medium | Array, Hash Table, Binary Search, Design, Queue, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/3509-maximum-product-of-subsequences-with-an-alternating-sum-equal-to-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3509-maximum-product-of-subsequences-with-an-alternating-sum-equal-to-k/Hard | Array, Hash Table, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3510-minimum-pair-removal-to-sort-array-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3510-minimum-pair-removal-to-sort-array-ii/Hard | Array, Hash Table, Linked List, Heap (Priority Queue), Simulation, Doubly-Linked List, Ordered Sethttps://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/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/3531-count-covered-buildings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3531-count-covered-buildings/Medium | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3532-path-existence-queries-in-a-graph-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3532-path-existence-queries-in-a-graph-i/Medium | Array, Hash Table, Binary Search, Union-Find, Graph Theoryhttps://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/3542-minimum-operations-to-convert-all-elements-to-zero/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3542-minimum-operations-to-convert-all-elements-to-zero/Medium | Array, Hash Table, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3543-maximum-weighted-k-edge-path/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3543-maximum-weighted-k-edge-path/Medium | Hash Table, Dynamic Programming, Graph Theoryhttps://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/3551-minimum-swaps-to-sort-by-digit-sum/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3551-minimum-swaps-to-sort-by-digit-sum/Medium | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3552-grid-teleportation-traversal/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3552-grid-teleportation-traversal/Medium | Array, Hash Table, Breadth-First Search, Matrixhttps://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/3568-minimum-moves-to-clean-the-classroom/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3568-minimum-moves-to-clean-the-classroom/Medium | Array, Hash Table, Bit Manipulation, Breadth-First Search, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/3583-count-special-triplets/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3583-count-special-triplets/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3588-find-maximum-area-of-a-triangle/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3588-find-maximum-area-of-a-triangle/Medium | Array, Hash Table, Math, Greedy, Geometry, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3591-check-if-any-element-has-prime-frequency/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3591-check-if-any-element-has-prime-frequency/Easy | Array, Hash Table, Math, Counting, Number Theoryhttps://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/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/3607-power-grid-maintenance/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3607-power-grid-maintenance/Medium | Array, Hash Table, Depth-First Search, Breadth-First Search, Union-Find, Graph Theory, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/3623-count-number-of-trapezoids-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3623-count-number-of-trapezoids-i/Medium | Array, Hash Table, Math, Geometryhttps://leetcode-solutions-5zk.pages.dev/posts/3625-count-number-of-trapezoids-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3625-count-number-of-trapezoids-ii/Hard | Array, Hash Table, Math, Geometryhttps://leetcode-solutions-5zk.pages.dev/posts/3629-minimum-jumps-to-reach-end-via-prime-teleportation/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3629-minimum-jumps-to-reach-end-via-prime-teleportation/Medium | Array, Hash Table, Math, Breadth-First Search, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3636-threshold-majority-queries/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3636-threshold-majority-queries/Hard | Array, Hash Table, Binary Search, Divide and Conquer, Counting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3654-minimum-sum-after-divisible-sum-deletions/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3654-minimum-sum-after-divisible-sum-deletions/Medium | Array, Hash Table, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3659-partition-array-into-k-distinct-groups/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3659-partition-array-into-k-distinct-groups/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3663-find-the-least-frequent-digit/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3663-find-the-least-frequent-digit/Easy | Array, Hash Table, Math, Countinghttps://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/3668-restore-finishing-order/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3668-restore-finishing-order/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3678-smallest-absent-positive-greater-than-average/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3678-smallest-absent-positive-greater-than-average/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3679-minimum-discards-to-balance-inventory/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3679-minimum-discards-to-balance-inventory/Medium | Array, Hash Table, Sliding Window, Simulation, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3684-maximize-sum-of-at-most-k-distinct-elements/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3684-maximize-sum-of-at-most-k-distinct-elements/Easy | Array, Hash Table, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3690-split-and-merge-array-transformation/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3690-split-and-merge-array-transformation/Medium | Array, Hash Table, Breadth-First Searchhttps://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/3712-sum-of-elements-with-frequency-divisible-by-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3712-sum-of-elements-with-frequency-divisible-by-k/Easy | Array, Hash Table, Countinghttps://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/3715-sum-of-perfect-square-ancestors/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3715-sum-of-perfect-square-ancestors/Hard | Array, Hash Table, Math, Tree, Depth-First Search, Counting, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3718-smallest-missing-multiple-of-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3718-smallest-missing-multiple-of-k/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3719-longest-balanced-subarray-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3719-longest-balanced-subarray-i/Medium | Array, Hash Table, Divide and Conquer, Segment Tree, 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/3721-longest-balanced-subarray-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3721-longest-balanced-subarray-ii/Hard | Array, Hash Table, Divide and Conquer, Segment Tree, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3728-stable-subarrays-with-equal-boundary-and-interior-sum/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3728-stable-subarrays-with-equal-boundary-and-interior-sum/Medium | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3729-count-distinct-subarrays-divisible-by-k-in-sorted-array/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3729-count-distinct-subarrays-divisible-by-k-in-sorted-array/Hard | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3731-find-missing-elements/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3731-find-missing-elements/Easy | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3737-count-subarrays-with-majority-element-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3737-count-subarrays-with-majority-element-i/Medium | Array, Hash Table, Divide and Conquer, Segment Tree, Merge Sort, Counting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3739-count-subarrays-with-majority-element-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3739-count-subarrays-with-majority-element-ii/Hard | Array, Hash Table, Divide and Conquer, Segment Tree, Merge Sort, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3740-minimum-distance-between-three-equal-elements-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3740-minimum-distance-between-three-equal-elements-i/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3741-minimum-distance-between-three-equal-elements-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3741-minimum-distance-between-three-equal-elements-ii/Medium | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3755-find-maximum-balanced-xor-subarray-length/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3755-find-maximum-balanced-xor-subarray-length/Medium | Array, Hash Table, Bit Manipulation, 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/3761-minimum-absolute-distance-between-mirror-pairs/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3761-minimum-absolute-distance-between-mirror-pairs/Medium | Array, Hash Table, Mathhttps://leetcode-solutions-5zk.pages.dev/posts/3779-minimum-number-of-operations-to-have-distinct-elements/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3779-minimum-number-of-operations-to-have-distinct-elements/Medium | Array, Hash Tablehttps://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/3785-minimum-swaps-to-avoid-forbidden-values/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3785-minimum-swaps-to-avoid-forbidden-values/Hard | Array, Hash Table, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3790-smallest-all-ones-multiple/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3790-smallest-all-ones-multiple/Medium | Hash Table, Mathhttps://leetcode-solutions-5zk.pages.dev/posts/3795-minimum-subarray-length-with-distinct-sum-at-least-k/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3795-minimum-subarray-length-with-distinct-sum-at-least-k/Medium | Array, Hash Table, Sliding Windowhttps://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/3804-number-of-centered-subarrays/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3804-number-of-centered-subarrays/Medium | Array, Hash Table, Enumerationhttps://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/3810-minimum-operations-to-reach-target-array/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3810-minimum-operations-to-reach-target-array/Medium | Array, Hash Table, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3811-number-of-alternating-xor-partitions/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3811-number-of-alternating-xor-partitions/Medium | Array, Hash Table, Dynamic Programming, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/3815-design-auction-system/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3815-design-auction-system/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://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/3829-design-ride-sharing-system/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3829-design-ride-sharing-system/Medium | Hash Table, Design, Queue, Data Streamhttps://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/3842-toggle-light-bulbs/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3842-toggle-light-bulbs/Easy | Array, Hash Table, Sorting, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3843-first-element-with-unique-frequency/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3843-first-element-with-unique-frequency/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3852-smallest-pair-with-different-frequencies/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3852-smallest-pair-with-different-frequencies/Easy | Array, Hash Table, Countinghttps://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/3859-count-subarrays-with-k-distinct-integers/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3859-count-subarrays-with-k-distinct-integers/Hard | Array, Hash Table, Sliding Window, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3866-first-unique-even-element/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3866-first-unique-even-element/Easy | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3868-minimum-cost-to-equalize-arrays-using-swaps/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3868-minimum-cost-to-equalize-arrays-using-swaps/Medium | Array, Hash Table, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3873-maximum-points-activated-with-one-addition/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3873-maximum-points-activated-with-one-addition/Hard | Array, Hash Table, Union-Findhttps://leetcode-solutions-5zk.pages.dev/posts/3885-design-event-manager/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3885-design-event-manager/Medium | Array, Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://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/3890-integers-with-multiple-sum-of-two-cubes/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3890-integers-with-multiple-sum-of-two-cubes/Medium | Hash Table, Sorting, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2963-count-the-number-of-good-partitions/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2963-count-the-number-of-good-partitions/Hard | Array, Hash Table, Math, Combinatoricshttps://leetcode-solutions-5zk.pages.dev/posts/2965-find-missing-and-repeated-values/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2965-find-missing-and-repeated-values/Easy | Array, Hash Table, Math, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/2975-maximum-square-area-by-removing-fences-from-a-field/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2975-maximum-square-area-by-removing-fences-from-a-field/Medium | Array, Hash Table, Enumerationhttps://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/2996-smallest-missing-integer-greater-than-sequential-prefix-sum/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2996-smallest-missing-integer-greater-than-sequential-prefix-sum/Easy | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/3002-maximum-size-of-a-set-after-removals/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3002-maximum-size-of-a-set-after-removals/Medium | Array, Hash Table, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/3005-count-elements-with-maximum-frequency/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3005-count-elements-with-maximum-frequency/Easy | Array, Hash Table, Countinghttps://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/3020-find-the-maximum-number-of-elements-in-subset/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3020-find-the-maximum-number-of-elements-in-subset/Medium | Array, Hash Table, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/3026-maximum-good-subarray-sum/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3026-maximum-good-subarray-sum/Medium | Array, Hash Table, Prefix Sumhttps://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/3039-apply-operations-to-make-string-empty/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3039-apply-operations-to-make-string-empty/Medium | Array, Hash Table, Sorting, Countinghttps://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/3044-most-frequent-prime/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3044-most-frequent-prime/Medium | Array, Hash Table, Math, Matrix, Counting, Enumeration, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/3046-split-the-array/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3046-split-the-array/Easy | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3071-minimum-operations-to-write-the-letter-y-on-a-grid/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3071-minimum-operations-to-write-the-letter-y-on-a-grid/Medium | Array, Hash Table, Matrix, Countinghttps://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/3080-mark-elements-on-array-by-performing-queries/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3080-mark-elements-on-array-by-performing-queries/Medium | Array, Hash Table, Sorting, Heap (Priority Queue), Simulationhttps://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/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/3092-most-frequent-ids/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3092-most-frequent-ids/Medium | Array, Hash Table, Heap (Priority Queue), Ordered Sethttps://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/3128-right-triangles/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3128-right-triangles/Medium | Array, Hash Table, Math, Combinatorics, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3134-find-the-median-of-the-uniqueness-array/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3134-find-the-median-of-the-uniqueness-array/Hard | Array, Hash Table, Binary Search, Sliding Windowhttps://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/3153-sum-of-digit-differences-of-all-pairs/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3153-sum-of-digit-differences-of-all-pairs/Medium | Array, Hash Table, Math, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3158-find-the-xor-of-numbers-which-appear-twice/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3158-find-the-xor-of-numbers-which-appear-twice/Easy | Array, Hash Table, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/3159-find-occurrences-of-an-element-in-an-array/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3159-find-occurrences-of-an-element-in-an-array/Medium | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3160-find-the-number-of-distinct-colors-among-the-balls/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3160-find-the-number-of-distinct-colors-among-the-balls/Medium | Array, Hash Table, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/3162-find-the-number-of-good-pairs-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3162-find-the-number-of-good-pairs-i/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/3164-find-the-number-of-good-pairs-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3164-find-the-number-of-good-pairs-ii/Medium | Array, Hash Tablehttps://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/3176-find-the-maximum-length-of-a-good-subsequence-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3176-find-the-maximum-length-of-a-good-subsequence-i/Medium | Array, Hash Table, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3177-find-the-maximum-length-of-a-good-subsequence-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3177-find-the-maximum-length-of-a-good-subsequence-ii/Hard | Array, Hash Table, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/3184-count-pairs-that-form-a-complete-day-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3184-count-pairs-that-form-a-complete-day-i/Easy | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3185-count-pairs-that-form-a-complete-day-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3185-count-pairs-that-form-a-complete-day-ii/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/3186-maximum-total-damage-with-spell-casting/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3186-maximum-total-damage-with-spell-casting/Medium | Array, Hash Table, Two Pointers, Binary Search, Dynamic Programming, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2641-cousins-in-binary-tree-ii/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2641-cousins-in-binary-tree-ii/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/2653-sliding-subarray-beauty/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2653-sliding-subarray-beauty/Medium | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2657-find-the-prefix-common-array-of-two-arrays/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2657-find-the-prefix-common-array-of-two-arrays/Medium | Array, Hash Table, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2661-first-completely-painted-row-or-column/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2661-first-completely-painted-row-or-column/Medium | Array, Hash Table, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/2670-find-the-distinct-difference-array/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2670-find-the-distinct-difference-array/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2671-frequency-tracker/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2671-frequency-tracker/Medium | Hash Table, Designhttps://leetcode-solutions-5zk.pages.dev/posts/2682-find-the-losers-of-the-circular-game/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2682-find-the-losers-of-the-circular-game/Easy | Array, Hash Table, Simulationhttps://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/2711-difference-of-number-of-distinct-values-on-diagonals/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2711-difference-of-number-of-distinct-values-on-diagonals/Medium | Array, Hash Table, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/2713-maximum-strictly-increasing-cells-in-a-matrix/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2713-maximum-strictly-increasing-cells-in-a-matrix/Hard | Array, Hash Table, Binary Search, Dynamic Programming, Memoization, Sorting, Matrix, Ordered Sethttps://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/2718-sum-of-matrix-after-queries/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2718-sum-of-matrix-after-queries/Medium | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2729-check-if-the-number-is-fascinating/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2729-check-if-the-number-is-fascinating/Easy | Hash Table, Mathhttps://leetcode-solutions-5zk.pages.dev/posts/2732-find-a-good-subset-of-the-matrix/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2732-find-a-good-subset-of-the-matrix/Hard | Array, Hash Table, Bit Manipulation, Matrixhttps://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/2747-count-zero-request-servers/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2747-count-zero-request-servers/Medium | Array, Hash Table, Sliding Window, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2748-number-of-beautiful-pairs/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2748-number-of-beautiful-pairs/Easy | Array, Hash Table, Math, Counting, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/2763-sum-of-imbalance-numbers-of-all-subarrays/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2763-sum-of-imbalance-numbers-of-all-subarrays/Hard | Array, Hash Table, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2808-minimum-seconds-to-equalize-a-circular-array/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2808-minimum-seconds-to-equalize-a-circular-array/Medium | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2813-maximum-elegance-of-a-k-length-subsequence/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2813-maximum-elegance-of-a-k-length-subsequence/Hard | Array, Hash Table, Stack, Greedy, Sorting, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/2815-max-pair-sum-in-an-array/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2815-max-pair-sum-in-an-array/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2830-maximize-the-profit-as-the-salesman/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2830-maximize-the-profit-as-the-salesman/Medium | Array, Hash Table, Binary Search, Dynamic Programming, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2831-find-the-longest-equal-subarray/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2831-find-the-longest-equal-subarray/Medium | Array, Hash Table, Binary Search, Sliding Windowhttps://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/2841-maximum-sum-of-almost-unique-subarray/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2841-maximum-sum-of-almost-unique-subarray/Medium | Array, Hash Table, Sliding Windowhttps://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/2845-count-of-interesting-subarrays/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2845-count-of-interesting-subarrays/Medium | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2848-points-that-intersect-with-cars/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2848-points-that-intersect-with-cars/Easy | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2856-minimum-array-length-after-pair-removals/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2856-minimum-array-length-after-pair-removals/Medium | Array, Hash Table, Two Pointers, Binary Search, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2857-count-pairs-of-points-with-distance-k/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2857-count-pairs-of-points-with-distance-k/Medium | Array, Hash Table, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2869-minimum-operations-to-collect-elements/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2869-minimum-operations-to-collect-elements/Easy | Array, Hash Table, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2870-minimum-number-of-operations-to-make-array-empty/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2870-minimum-number-of-operations-to-make-array-empty/Medium | Array, Hash Table, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2875-minimum-size-subarray-in-infinite-array/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2875-minimum-size-subarray-in-infinite-array/Medium | Array, Hash Table, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2897-apply-operations-on-array-to-maximize-sum-of-squares/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2897-apply-operations-on-array-to-maximize-sum-of-squares/Hard | Array, Hash Table, Greedy, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2902-count-of-sub-multisets-with-bounded-sum/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2902-count-of-sub-multisets-with-bounded-sum/Hard | Array, Hash Table, Dynamic Programming, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2910-minimum-number-of-groups-to-create-a-valid-assignment/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2910-minimum-number-of-groups-to-create-a-valid-assignment/Medium | Array, Hash Table, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2913-subarrays-distinct-element-sum-of-squares-i/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2913-subarrays-distinct-element-sum-of-squares-i/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2932-maximum-strong-pair-xor-i/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2932-maximum-strong-pair-xor-i/Easy | Array, Hash Table, Bit Manipulation, Trie, Sliding Windowhttps://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/2935-maximum-strong-pair-xor-ii/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2935-maximum-strong-pair-xor-ii/Hard | Array, Hash Table, Bit Manipulation, Trie, Sliding Windowhttps://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/2956-find-common-elements-between-two-arrays/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2956-find-common-elements-between-two-arrays/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2958-length-of-longest-subarray-with-at-most-k-frequency/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2958-length-of-longest-subarray-with-at-most-k-frequency/Medium | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2001-number-of-pairs-of-interchangeable-rectangles/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2001-number-of-pairs-of-interchangeable-rectangles/Medium | Array, Hash Table, Math, Counting, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/2007-find-original-array-from-doubled-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2007-find-original-array-from-doubled-array/Medium | Array, Hash Table, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2008-maximum-earnings-from-taxi/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2008-maximum-earnings-from-taxi/Medium | Array, Hash Table, Binary Search, Dynamic Programming, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2009-minimum-number-of-operations-to-make-array-continuous/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2009-minimum-number-of-operations-to-make-array-continuous/Hard | Array, Hash Table, Binary Search, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2013-detect-squares/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2013-detect-squares/Medium | Array, Hash Table, Design, Counting, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/2032-two-out-of-three/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2032-two-out-of-three/Easy | Array, Hash Table, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2034-stock-price-fluctuation/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2034-stock-price-fluctuation/Medium | Hash Table, Design, Heap (Priority Queue), Data Stream, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2043-simple-bank-system/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2043-simple-bank-system/Medium | Array, Hash Table, Design, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2048-next-greater-numerically-balanced-number/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2048-next-greater-numerically-balanced-number/Medium | Hash Table, Math, Backtracking, Counting, Enumerationhttps://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/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/2080-range-frequency-queries/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2080-range-frequency-queries/Medium | Array, Hash Table, Binary Search, Design, Segment Treehttps://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/2094-finding-3-digit-even-numbers/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2094-finding-3-digit-even-numbers/Easy | Array, Hash Table, Recursion, Sorting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2099-find-subsequence-of-length-k-with-the-largest-sum/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2099-find-subsequence-of-length-k-with-the-largest-sum/Easy | Array, Hash Table, Sorting, Heap (Priority Queue)https://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/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/2121-intervals-between-identical-elements/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2121-intervals-between-identical-elements/Medium | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2122-recover-the-original-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2122-recover-the-original-array/Hard | Array, Hash Table, Two Pointers, Sorting, Enumerationhttps://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/2133-check-if-every-row-and-column-contains-all-numbers/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2133-check-if-every-row-and-column-contains-all-numbers/Easy | Array, Hash Table, Matrixhttps://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/2150-find-all-lonely-numbers-in-the-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2150-find-all-lonely-numbers-in-the-array/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2154-keep-multiplying-found-values-by-two/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2154-keep-multiplying-found-values-by-two/Easy | Array, Hash Table, Sorting, Simulationhttps://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/2170-minimum-operations-to-make-the-array-alternating/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2170-minimum-operations-to-make-the-array-alternating/Medium | Array, Hash Table, Greedy, Countinghttps://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/2183-count-array-pairs-divisible-by-k/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2183-count-array-pairs-divisible-by-k/Hard | Array, Hash Table, Math, Counting, Number Theoryhttps://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/2190-most-frequent-number-following-key-in-an-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2190-most-frequent-number-following-key-in-an-array/Easy | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2196-create-binary-tree-from-descriptions/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2196-create-binary-tree-from-descriptions/Medium | Array, Hash Table, Tree, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/2201-count-artifacts-that-can-be-extracted/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2201-count-artifacts-that-can-be-extracted/Medium | Array, Hash Table, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2206-divide-array-into-equal-pairs/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2206-divide-array-into-equal-pairs/Easy | Array, Hash Table, Bit Manipulation, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2215-find-the-difference-of-two-arrays/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2215-find-the-difference-of-two-arrays/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2225-find-players-with-zero-or-one-losses/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2225-find-players-with-zero-or-one-losses/Medium | Array, Hash Table, Sorting, Countinghttps://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/2244-minimum-rounds-to-complete-all-tasks/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2244-minimum-rounds-to-complete-all-tasks/Medium | Array, Hash Table, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2248-intersection-of-multiple-arrays/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2248-intersection-of-multiple-arrays/Easy | Array, Hash Table, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2249-count-lattice-points-inside-a-circle/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2249-count-lattice-points-inside-a-circle/Medium | Array, Hash Table, Math, Geometry, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2250-count-number-of-rectangles-containing-each-point/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2250-count-number-of-rectangles-containing-each-point/Medium | Array, Hash Table, Binary Search, Binary Indexed Tree, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2251-number-of-flowers-in-full-bloom/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2251-number-of-flowers-in-full-bloom/Hard | Array, Hash Table, Binary Search, Sorting, Prefix Sum, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2260-minimum-consecutive-cards-to-pick-up/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2260-minimum-consecutive-cards-to-pick-up/Medium | Array, Hash Table, Sliding Windowhttps://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/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/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/2275-largest-combination-with-bitwise-and-greater-than-zero/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2275-largest-combination-with-bitwise-and-greater-than-zero/Medium | Array, Hash Table, Bit Manipulation, Countinghttps://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/2295-replace-elements-in-an-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2295-replace-elements-in-an-array/Medium | Array, Hash Table, Simulationhttps://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/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/2336-smallest-number-in-infinite-set/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2336-smallest-number-in-infinite-set/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2341-maximum-number-of-pairs-in-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2341-maximum-number-of-pairs-in-array/Easy | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2342-max-sum-of-a-pair-with-equal-sum-of-digits/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2342-max-sum-of-a-pair-with-equal-sum-of-digits/Medium | Array, Hash Table, Sorting, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/2347-best-poker-hand/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2347-best-poker-hand/Easy | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2349-design-a-number-container-system/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2349-design-a-number-container-system/Medium | Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2350-shortest-impossible-sequence-of-rolls/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2350-shortest-impossible-sequence-of-rolls/Hard | Array, Hash Table, Greedyhttps://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/2352-equal-row-and-column-pairs/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2352-equal-row-and-column-pairs/Medium | Array, Hash Table, Matrix, Simulationhttps://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/2354-number-of-excellent-pairs/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2354-number-of-excellent-pairs/Hard | Array, Hash Table, Binary Search, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/2357-make-array-zero-by-subtracting-equal-amounts/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2357-make-array-zero-by-subtracting-equal-amounts/Easy | Array, Hash Table, Greedy, Sorting, Heap (Priority Queue), Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2363-merge-similar-items/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2363-merge-similar-items/Easy | Array, Hash Table, Sorting, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2364-count-number-of-bad-pairs/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2364-count-number-of-bad-pairs/Medium | Array, Hash Table, Math, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2365-task-scheduler-ii/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2365-task-scheduler-ii/Medium | Array, Hash Table, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2367-number-of-arithmetic-triplets/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2367-number-of-arithmetic-triplets/Easy | Array, Hash Table, Two Pointers, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/2368-reachable-nodes-with-restrictions/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2368-reachable-nodes-with-restrictions/Medium | Array, Hash Table, Tree, Depth-First Search, Breadth-First Search, Union-Find, Graph Theoryhttps://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/2374-node-with-highest-edge-score/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2374-node-with-highest-edge-score/Medium | Hash Table, Graph Theoryhttps://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/2385-amount-of-time-for-binary-tree-to-be-infected/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2385-amount-of-time-for-binary-tree-to-be-infected/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/2395-find-subarrays-with-equal-sum/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2395-find-subarrays-with-equal-sum/Easy | Array, Hash Tablehttps://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/2402-meeting-rooms-iii/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2402-meeting-rooms-iii/Hard | Array, Hash Table, Sorting, Heap (Priority Queue), Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2404-most-frequent-even-element/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2404-most-frequent-even-element/Easy | Array, Hash Table, Countinghttps://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/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/2421-number-of-good-paths/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2421-number-of-good-paths/Hard | Array, Hash Table, Tree, Union-Find, Graph Theory, 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/2424-longest-uploaded-prefix/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2424-longest-uploaded-prefix/Medium | Hash Table, Binary Search, Union-Find, Design, Binary Indexed Tree, Segment Tree, Heap (Priority Queue), Ordered Sethttps://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/2441-largest-positive-integer-that-exists-with-its-negative/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2441-largest-positive-integer-that-exists-with-its-negative/Easy | Array, Hash Table, Two Pointers, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2442-count-number-of-distinct-integers-after-reverse-operations/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2442-count-number-of-distinct-integers-after-reverse-operations/Medium | Array, Hash Table, Math, Countinghttps://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/2453-destroy-sequential-targets/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2453-destroy-sequential-targets/Medium | Array, Hash Table, Countinghttps://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/2461-maximum-sum-of-distinct-subarrays-with-length-k/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2461-maximum-sum-of-distinct-subarrays-with-length-k/Medium | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2465-number-of-distinct-averages/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2465-number-of-distinct-averages/Easy | Array, Hash Table, Two Pointers, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2475-number-of-unequal-triplets-in-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2475-number-of-unequal-triplets-in-array/Easy | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2488-count-subarrays-with-median-k/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2488-count-subarrays-with-median-k/Hard | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2491-divide-players-into-teams-of-equal-skill/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2491-divide-players-into-teams-of-equal-skill/Medium | Array, Hash Table, Two Pointers, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2499-minimum-total-cost-to-make-arrays-unequal/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2499-minimum-total-cost-to-make-arrays-unequal/Hard | Array, Hash Table, Greedy, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2501-longest-square-streak-in-an-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2501-longest-square-streak-in-an-array/Medium | Array, Hash Table, Binary Search, Dynamic Programming, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2502-design-memory-allocator/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2502-design-memory-allocator/Medium | Array, Hash Table, Design, Simulationhttps://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/2508-add-edges-to-make-degrees-of-all-nodes-even/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2508-add-edges-to-make-degrees-of-all-nodes-even/Hard | Hash Table, Graph Theoryhttps://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/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/2521-distinct-prime-factors-of-product-of-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2521-distinct-prime-factors-of-product-of-array/Medium | Array, Hash Table, Math, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/2526-find-consecutive-integers-from-a-data-stream/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2526-find-consecutive-integers-from-a-data-stream/Medium | Hash Table, Design, Queue, Counting, Data Streamhttps://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/2537-count-the-number-of-good-subarrays/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2537-count-the-number-of-good-subarrays/Medium | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/2540-minimum-common-value/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2540-minimum-common-value/Easy | Array, Hash Table, Two Pointers, Binary Searchhttps://leetcode-solutions-5zk.pages.dev/posts/2547-minimum-cost-to-split-an-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2547-minimum-cost-to-split-an-array/Hard | Array, Hash Table, Dynamic Programming, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/2549-count-distinct-numbers-on-board/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2549-count-distinct-numbers-on-board/Easy | Array, Hash Table, Math, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2554-maximum-number-of-integers-to-choose-from-a-range-i/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2554-maximum-number-of-integers-to-choose-from-a-range-i/Medium | Array, Hash Table, Binary Search, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/2561-rearranging-fruits/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2561-rearranging-fruits/Hard | Array, Hash Table, Greedy, Sorthttps://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/2570-merge-two-2d-arrays-by-summing-values/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2570-merge-two-2d-arrays-by-summing-values/Easy | Array, Hash Table, Two Pointershttps://leetcode-solutions-5zk.pages.dev/posts/2581-count-number-of-possible-root-nodes/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2581-count-number-of-possible-root-nodes/Hard | Array, Hash Table, Dynamic Programming, Tree, Depth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/2584-split-the-array-to-make-coprime-products/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2584-split-the-array-to-make-coprime-products/Hard | Array, Hash Table, Math, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/2588-count-the-number-of-beautiful-subarrays/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2588-count-the-number-of-beautiful-subarrays/Medium | Array, Hash Table, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2593-find-score-of-an-array-after-marking-all-elements/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2593-find-score-of-an-array-after-marking-all-elements/Medium | Array, Hash Table, Sorting, Heap (Priority Queue), Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2597-the-number-of-beautiful-subsets/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2597-the-number-of-beautiful-subsets/Medium | Array, Hash Table, Math, Dynamic Programming, Backtracking, Sorting, Combinatoricshttps://leetcode-solutions-5zk.pages.dev/posts/2598-smallest-missing-non-negative-integer-after-operations/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2598-smallest-missing-non-negative-integer-after-operations/Medium | Array, Hash Table, Math, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/2605-form-smallest-number-from-two-digit-arrays/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2605-form-smallest-number-from-two-digit-arrays/Easy | Array, Hash Table, Enumerationhttps://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/2610-convert-an-array-into-a-2d-array-with-conditions/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2610-convert-an-array-into-a-2d-array-with-conditions/Medium | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/2612-minimum-reverse-operations/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2612-minimum-reverse-operations/Hard | Array, Hash Table, Breadth-First Search, Union-Find, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2615-sum-of-distances/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2615-sum-of-distances/Medium | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1282-group-the-people-given-the-group-size-they-belong-to/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1282-group-the-people-given-the-group-size-they-belong-to/Medium | Array, Hash Table, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1284-minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1284-minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix/Hard | Array, Hash Table, Bit Manipulation, Breadth-First Search, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/1296-divide-array-in-sets-of-k-consecutive-numbers/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1296-divide-array-in-sets-of-k-consecutive-numbers/Medium | Array, Hash Table, Greedy, Sortinghttps://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/1311-get-watched-videos-by-your-friends/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1311-get-watched-videos-by-your-friends/Medium | Array, Hash Table, Breadth-First Search, Graph Theory, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1331-rank-transform-of-an-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1331-rank-transform-of-an-array/Easy | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1338-reduce-array-size-to-the-half/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1338-reduce-array-size-to-the-half/Medium | Array, Hash Table, Greedy, Sorting, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/1345-jump-game-iv/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1345-jump-game-iv/Hard | Array, Hash Table, Breadth-First Searchhttps://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/1357-apply-discount-every-n-orders/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1357-apply-discount-every-n-orders/Medium | Array, Hash Table, Designhttps://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/1365-how-many-numbers-are-smaller-than-the-current-number/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1365-how-many-numbers-are-smaller-than-the-current-number/Easy | Array, Hash Table, Sorting, Counting Sorthttps://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/1386-cinema-seat-allocation/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1386-cinema-seat-allocation/Medium | Array, Hash Table, Greedy, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/1394-find-lucky-integer-in-an-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1394-find-lucky-integer-in-an-array/Easy | Array, Hash Table, Countinghttps://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/1399-count-largest-group/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1399-count-largest-group/Easy | Hash Table, Math, Countinghttps://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/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/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/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/1460-make-two-arrays-equal-by-reversing-subarrays/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1460-make-two-arrays-equal-by-reversing-subarrays/Easy | Array, Hash Table, Sortinghttps://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/1477-find-two-non-overlapping-sub-arrays-each-with-target-sum/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1477-find-two-non-overlapping-sub-arrays-each-with-target-sum/Medium | Array, Hash Table, Binary Search, Dynamic Programming, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1481-least-number-of-unique-integers-after-k-removals/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1481-least-number-of-unique-integers-after-k-removals/Medium | Array, Hash Table, Greedy, Sorting, Countinghttps://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/1497-check-if-array-pairs-are-divisible-by-k/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1497-check-if-array-pairs-are-divisible-by-k/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1512-number-of-good-pairs/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1512-number-of-good-pairs/Easy | Array, Hash Table, Math, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1519-number-of-nodes-in-the-sub-tree-with-the-same-label/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1519-number-of-nodes-in-the-sub-tree-with-the-same-label/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Countinghttps://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/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/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/1546-maximum-number-of-non-overlapping-subarrays-with-sum-equals-target/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1546-maximum-number-of-non-overlapping-subarrays-with-sum-equals-target/Medium | Array, Hash Table, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1562-find-latest-group-of-size-m/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1562-find-latest-group-of-size-m/Medium | Array, Hash Table, Binary Search, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/1590-make-sum-divisible-by-p/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1590-make-sum-divisible-by-p/Medium | Array, Hash Table, Prefix Sumhttps://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/1600-throne-inheritance/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1600-throne-inheritance/Medium | Hash Table, Tree, Depth-First Search, Designhttps://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/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/1630-arithmetic-subarrays/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1630-arithmetic-subarrays/Medium | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1636-sort-array-by-increasing-frequency/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1636-sort-array-by-increasing-frequency/Easy | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1640-check-array-formation-through-concatenation/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1640-check-array-formation-through-concatenation/Easy | Array, Hash Tablehttps://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/1654-minimum-jumps-to-reach-home/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1654-minimum-jumps-to-reach-home/Medium | Array, Hash Table, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/1655-distribute-repeating-integers/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1655-distribute-repeating-integers/Hard | Array, Hash Table, Dynamic Programming, Backtracking, Bit Manipulation, Counting, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/1656-design-an-ordered-stream/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1656-design-an-ordered-stream/Easy | Array, Hash Table, Design, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/1658-minimum-operations-to-reduce-x-to-zero/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1658-minimum-operations-to-reduce-x-to-zero/Medium | Array, Hash Table, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1674-minimum-moves-to-make-array-complementary/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1674-minimum-moves-to-make-array-complementary/Medium | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1679-max-number-of-k-sum-pairs/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1679-max-number-of-k-sum-pairs/Medium | Array, Hash Table, Two Pointers, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/1681-minimum-incompatibility/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1681-minimum-incompatibility/Hard | Array, Hash Table, Dynamic Programming, Bit Manipulation, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/1695-maximum-erasure-value/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1695-maximum-erasure-value/Medium | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/1713-minimum-operations-to-make-a-subsequence/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1713-minimum-operations-to-make-a-subsequence/Hard | Array, Hash Table, Binary Search, Greedyhttps://leetcode-solutions-5zk.pages.dev/posts/1726-tuple-with-same-product/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1726-tuple-with-same-product/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1733-minimum-number-of-people-to-teach/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1733-minimum-number-of-people-to-teach/Medium | Array, Hash Table, 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/1742-maximum-number-of-balls-in-a-box/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1742-maximum-number-of-balls-in-a-box/Easy | Hash Table, Math, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1743-restore-the-array-from-adjacent-pairs/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1743-restore-the-array-from-adjacent-pairs/Medium | Array, Hash Table, Depth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/1748-sum-of-unique-elements/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1748-sum-of-unique-elements/Easy | Array, Hash Table, Countinghttps://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/1775-equal-sum-arrays-with-minimum-number-of-operations/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1775-equal-sum-arrays-with-minimum-number-of-operations/Medium | Array, Hash Table, Greedy, Countinghttps://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/1782-count-pairs-of-nodes/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1782-count-pairs-of-nodes/Hard | Array, Hash Table, Two Pointers, Binary Search, Graph Theory, Sorting, Countinghttps://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/1797-design-authentication-manager/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1797-design-authentication-manager/Medium | Hash Table, Linked List, Design, Doubly-Linked Listhttps://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/1814-count-nice-pairs-in-an-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1814-count-nice-pairs-in-an-array/Medium | Array, Hash Table, Math, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1817-finding-the-users-active-minutes/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1817-finding-the-users-active-minutes/Medium | Array, Hash Tablehttps://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/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/1865-finding-pairs-with-a-certain-sum/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1865-finding-pairs-with-a-certain-sum/Medium | Array, Hash Table, Designhttps://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/1893-check-if-all-the-integers-in-a-range-are-covered/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1893-check-if-all-the-integers-in-a-range-are-covered/Easy | Array, Hash Table, Prefix Sumhttps://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/1912-design-movie-rental-system/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1912-design-movie-rental-system/Hard | Array, Hash Table, Design, Heap (Priority Queue), Ordered Sethttps://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/1932-merge-bsts-to-create-single-bst/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1932-merge-bsts-to-create-single-bst/Hard | Array, Hash Table, Tree, Depth-First Search, Binary Search Tree, Binary Treehttps://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/1938-maximum-genetic-difference-query/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1938-maximum-genetic-difference-query/Hard | Array, Hash Table, Bit Manipulation, Depth-First Search, Triehttps://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/1942-the-number-of-the-smallest-unoccupied-chair/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1942-the-number-of-the-smallest-unoccupied-chair/Medium | Array, Hash Table, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/1943-describe-the-painting/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1943-describe-the-painting/Medium | Array, Hash Table, Sorting, Prefix Sumhttps://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/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/1982-find-array-given-subset-sums/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1982-find-array-given-subset-sums/Hard | Array, Hash Table, Sorting, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1993-operations-on-tree/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1993-operations-on-tree/Medium | Array, Hash Table, Tree, Depth-First Search, Breadth-First Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/1001-grid-illumination/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1001-grid-illumination/Hard | Array, Hash Tablehttps://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/1010-pairs-of-songs-with-total-durations-divisible-by-60/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1010-pairs-of-songs-with-total-durations-divisible-by-60/Medium | Array, Hash Table, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1015-smallest-integer-divisible-by-k/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1015-smallest-integer-divisible-by-k/Medium | Hash Table, Mathhttps://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/1027-longest-arithmetic-subsequence/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1027-longest-arithmetic-subsequence/Medium | Array, Hash Table, Binary Search, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1036-escape-a-large-maze/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1036-escape-a-large-maze/Hard | Array, Hash Table, Depth-First Search, Breadth-First Searchhttps://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/1054-distant-barcodes/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1054-distant-barcodes/Medium | Array, Hash Table, Greedy, Sorting, Heap (Priority Queue), Countinghttps://leetcode-solutions-5zk.pages.dev/posts/1072-flip-columns-for-maximum-number-of-equal-rows/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1072-flip-columns-for-maximum-number-of-equal-rows/Medium | Array, Hash Table, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/1074-number-of-submatrices-that-sum-to-target/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1074-number-of-submatrices-that-sum-to-target/Hard | Array, Hash Table, Matrix, Prefix Sumhttps://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/1090-largest-values-from-labels/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1090-largest-values-from-labels/Medium | Array, Hash Table, Greedy, Sorting, Countinghttps://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/1110-delete-nodes-and-return-forest/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1110-delete-nodes-and-return-forest/Medium | Array, Hash Table, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/1122-relative-sort-array/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1122-relative-sort-array/Easy | Array, Hash Table, Sorting, Counting Sorthttps://leetcode-solutions-5zk.pages.dev/posts/1123-lowest-common-ancestor-of-deepest-leaves/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1123-lowest-common-ancestor-of-deepest-leaves/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/1124-longest-well-performing-interval/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1124-longest-well-performing-interval/Medium | Array, Hash Table, Stack, Monotonic Stack, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1128-number-of-equivalent-domino-pairs/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1128-number-of-equivalent-domino-pairs/Easy | Array, Hash Table, Countinghttps://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/1146-snapshot-array/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1146-snapshot-array/Medium | Array, Hash Table, Binary Search, Designhttps://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/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/1171-remove-zero-sum-consecutive-nodes-from-linked-list/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1171-remove-zero-sum-consecutive-nodes-from-linked-list/Medium | Hash Table, Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/1172-dinner-plate-stacks/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1172-dinner-plate-stacks/Hard | Hash Table, Stack, Design, Heap (Priority Queue)https://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/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/1207-unique-number-of-occurrences/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1207-unique-number-of-occurrences/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/1218-longest-arithmetic-subsequence-of-given-difference/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1218-longest-arithmetic-subsequence-of-given-difference/Medium | Array, Hash Table, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/1248-count-number-of-nice-subarrays/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1248-count-number-of-nice-subarrays/Medium | Array, Hash Table, Math, Sliding Window, Prefix Sumhttps://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/1261-find-elements-in-a-contaminated-binary-tree/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1261-find-elements-in-a-contaminated-binary-tree/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Design, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/1275-find-winner-on-a-tic-tac-toe-game/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1275-find-winner-on-a-tic-tac-toe-game/Easy | Array, Hash Table, Matrix, Simulationhttps://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/0740-delete-and-earn/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0740-delete-and-earn/Medium | Array, Hash Table, Dynamic Programminghttps://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/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/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/0781-rabbits-in-forest/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0781-rabbits-in-forest/Medium | Array, Hash Table, Math, Greedyhttps://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/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/0805-split-array-with-same-average/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0805-split-array-with-same-average/Hard | Array, Hash Table, Math, Dynamic Programming, Bit Manipulation, Bitmaskhttps://leetcode-solutions-5zk.pages.dev/posts/0815-bus-routes/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0815-bus-routes/Hard | Array, Hash Table, Breadth-First Searchhttps://leetcode-solutions-5zk.pages.dev/posts/0817-linked-list-components/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0817-linked-list-components/Medium | Array, Hash Table, Linked Listhttps://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/0822-card-flipping-game/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0822-card-flipping-game/Medium | Array, Hash Tablehttps://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/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/0840-magic-squares-in-grid/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0840-magic-squares-in-grid/Medium | Array, Hash Table, Math, Matrixhttps://leetcode-solutions-5zk.pages.dev/posts/0846-hand-of-straights/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0846-hand-of-straights/Medium | Array, Hash Table, Greedy, Sortinghttps://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/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/0863-all-nodes-distance-k-in-binary-tree/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0863-all-nodes-distance-k-in-binary-tree/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0865-smallest-subtree-with-all-the-deepest-nodes/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0865-smallest-subtree-with-all-the-deepest-nodes/Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0869-reordered-power-of-2/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0869-reordered-power-of-2/Medium | Hash Table, Math, Sorting, Counting, Enumerationhttps://leetcode-solutions-5zk.pages.dev/posts/0873-length-of-longest-fibonacci-subsequence/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0873-length-of-longest-fibonacci-subsequence/Medium | Array, Hash Table, Dynamic Programminghttps://leetcode-solutions-5zk.pages.dev/posts/0874-walking-robot-simulation/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0874-walking-robot-simulation/Medium | Array, Hash Table, Simulationhttps://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/0888-fair-candy-swap/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0888-fair-candy-swap/Easy | Array, Hash Table, Binary Search, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0889-construct-binary-tree-from-preorder-and-postorder-traversal/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0889-construct-binary-tree-from-preorder-and-postorder-traversal/Medium | Array, Hash Table, Divide and Conquer, Tree, Binary Treehttps://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/0895-maximum-frequency-stack/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0895-maximum-frequency-stack/Hard | Hash Table, Stack, Design, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0911-online-election/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0911-online-election/Medium | Array, Hash Table, Binary Search, Designhttps://leetcode-solutions-5zk.pages.dev/posts/0914-x-of-a-kind-in-a-deck-of-cards/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0914-x-of-a-kind-in-a-deck-of-cards/Easy | Array, Hash Table, Math, Counting, Number Theoryhttps://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/0924-minimize-malware-spread/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0924-minimize-malware-spread/Hard | Array, Hash Table, Depth-First Search, Breadth-First Search, Union-Find, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/0928-minimize-malware-spread-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0928-minimize-malware-spread-ii/Hard | Array, Hash Table, Depth-First Search, Breadth-First Search, Union-Find, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/0930-binary-subarrays-with-sum/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0930-binary-subarrays-with-sum/Medium | Array, Hash Table, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0947-most-stones-removed-with-same-row-or-column/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0947-most-stones-removed-with-same-row-or-column/Medium | Hash Table, Depth-First Search, Union-Find, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/0952-largest-component-size-by-common-factor/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0952-largest-component-size-by-common-factor/Hard | Array, Hash Table, Math, Union-Find, Number Theoryhttps://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/0954-array-of-doubled-pairs/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0954-array-of-doubled-pairs/Medium | Array, Hash Table, Greedy, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0957-prison-cells-after-n-days/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0957-prison-cells-after-n-days/Medium | Array, Hash Table, Math, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/0961-n-repeated-element-in-size-2n-array/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0961-n-repeated-element-in-size-2n-array/Easy | Array, Hash Tablehttps://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/0974-subarray-sums-divisible-by-k/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0974-subarray-sums-divisible-by-k/Medium | Array, Hash Table, Prefix Sumhttps://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/0987-vertical-order-traversal-of-a-binary-tree/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0987-vertical-order-traversal-of-a-binary-tree/Hard | Hash Table, Tree, Depth-First Search, Breadth-First Search, Sorting, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0992-subarrays-with-k-different-integers/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0992-subarrays-with-k-different-integers/Hard | Array, Hash Table, Sliding Window, Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0997-find-the-town-judge/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0997-find-the-town-judge/Easy | Array, Hash Table, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/0491-non-decreasing-subsequences/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0491-non-decreasing-subsequences/Medium | Array, Hash Table, Backtracking, Bit Manipulationhttps://leetcode-solutions-5zk.pages.dev/posts/0496-next-greater-element-i/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0496-next-greater-element-i/Easy | Array, Hash Table, Stack, Monotonic Stackhttps://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/0508-most-frequent-subtree-sum/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0508-most-frequent-subtree-sum/Medium | Hash Table, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0519-random-flip-matrix/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0519-random-flip-matrix/Medium | Hash Table, Math, Reservoir Sampling, Randomizedhttps://leetcode-solutions-5zk.pages.dev/posts/0523-continuous-subarray-sum/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0523-continuous-subarray-sum/Medium | Array, Hash Table, Math, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0525-contiguous-array/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0525-contiguous-array/Medium | Array, Hash Table, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0532-k-diff-pairs-in-an-array/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0532-k-diff-pairs-in-an-array/Medium | Array, Hash Table, Two Pointers, Binary Search, Sortinghttps://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/0554-brick-wall/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0554-brick-wall/Medium | Array, Hash Tablehttps://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/0575-distribute-candies/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0575-distribute-candies/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/0594-longest-harmonious-subsequence/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0594-longest-harmonious-subsequence/Easy | Array, Hash Table, Sliding Window, Sorting, Countinghttps://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/0621-task-scheduler/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0621-task-scheduler/Medium | Array, Hash Table, Greedy, Sorting, Heap (Priority Queue), Countinghttps://leetcode-solutions-5zk.pages.dev/posts/0645-set-mismatch/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0645-set-mismatch/Easy | Array, Hash Table, Bit Manipulation, Sortinghttps://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/0652-find-duplicate-subtrees/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0652-find-duplicate-subtrees/Medium | Hash Table, Tree, Depth-First Search, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0653-two-sum-iv-input-is-a-bst/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0653-two-sum-iv-input-is-a-bst/Easy | Hash Table, Two Pointers, Tree, Depth-First Search, Breadth-First Search, Binary Search Tree, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0659-split-array-into-consecutive-subsequences/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0659-split-array-into-consecutive-subsequences/Medium | Array, Hash Table, Greedy, Heap (Priority Queue)https://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/0690-employee-importance/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0690-employee-importance/Medium | Array, Hash Table, Tree, Depth-First Search, Breadth-First Searchhttps://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/0697-degree-of-an-array/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0697-degree-of-an-array/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/0705-design-hashset/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0705-design-hashset/Easy | Array, Hash Table, Linked List, Design, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0706-design-hashmap/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0706-design-hashmap/Easy | Array, Hash Table, Linked List, Design, Hash Functionhttps://leetcode-solutions-5zk.pages.dev/posts/0710-random-pick-with-blacklist/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0710-random-pick-with-blacklist/Hard | Array, Hash Table, Math, Binary Search, Sorting, Randomizedhttps://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/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/0347-top-k-frequent-elements/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0347-top-k-frequent-elements/Medium | Array, Hash Table, Divide and Conquer, Sorting, Heap (Priority Queue), Bucket Sort, Counting, Quickselecthttps://leetcode-solutions-5zk.pages.dev/posts/0349-intersection-of-two-arrays/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0349-intersection-of-two-arrays/Easy | Array, Hash Table, Two Pointers, Binary Search, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0350-intersection-of-two-arrays-ii/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0350-intersection-of-two-arrays-ii/Easy | Array, Hash Table, Two Pointers, Binary Search, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0352-data-stream-as-disjoint-intervals/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0352-data-stream-as-disjoint-intervals/Hard | Hash Table, Binary Search, Union-Find, Design, Data Stream, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0355-design-twitter/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0355-design-twitter/Medium | Hash Table, Linked List, Design, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/0380-insert-delete-getrandom-o1/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0380-insert-delete-getrandom-o1/Medium | Array, Hash Table, Math, Design, Randomizedhttps://leetcode-solutions-5zk.pages.dev/posts/0381-insert-delete-getrandom-o1-duplicates-allowed/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0381-insert-delete-getrandom-o1-duplicates-allowed/Hard | Array, Hash Table, Math, Design, Randomizedhttps://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/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/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/0391-perfect-rectangle/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0391-perfect-rectangle/Hard | Array, Hash Table, Math, Geometry, Sweep Linehttps://leetcode-solutions-5zk.pages.dev/posts/0398-random-pick-index/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0398-random-pick-index/Medium | Hash Table, Math, Reservoir Sampling, Randomizedhttps://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/0421-maximum-xor-of-two-numbers-in-an-array/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0421-maximum-xor-of-two-numbers-in-an-array/Medium | Array, Hash Table, Bit Manipulation, Triehttps://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/0432-all-oone-data-structure/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0432-all-oone-data-structure/Hard | Hash Table, Linked List, Design, Doubly-Linked Listhttps://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/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/0442-find-all-duplicates-in-an-array/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0442-find-all-duplicates-in-an-array/Medium | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0448-find-all-numbers-disappeared-in-an-array/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0448-find-all-numbers-disappeared-in-an-array/Easy | Array, Hash Tablehttps://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/0454-4sum-ii/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0454-4sum-ii/Medium | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/0457-circular-array-loop/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0457-circular-array-loop/Medium | Array, Hash Table, Two Pointershttps://leetcode-solutions-5zk.pages.dev/posts/0460-lfu-cache/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0460-lfu-cache/Hard | Hash Table, Linked List, Design, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/0001-two-sum/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0001-two-sum/Easy | Array, Hash Tablehttps://leetcode-solutions-5zk.pages.dev/posts/0105-construct-binary-tree-from-preorder-and-inorder-traversal/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0105-construct-binary-tree-from-preorder-and-inorder-traversal/Medium | Array, Hash Table, Divide and Conquer, Tree, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0106-construct-binary-tree-from-inorder-and-postorder-traversal/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0106-construct-binary-tree-from-inorder-and-postorder-traversal/Medium | Array, Hash Table, Divide and Conquer, Tree, Binary Treehttps://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/0128-longest-consecutive-sequence/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0128-longest-consecutive-sequence/Medium | Array, Hash Table, Union-Findhttps://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/0133-clone-graph/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0133-clone-graph/Medium | Hash Table, Depth-First Search, Breadth-First Search, Graph Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/0138-copy-list-with-random-pointer/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0138-copy-list-with-random-pointer/Medium | Hash Table, Linked Listhttps://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/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/0141-linked-list-cycle/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0141-linked-list-cycle/Easy | Hash Table, Linked List, Two Pointershttps://leetcode-solutions-5zk.pages.dev/posts/0142-linked-list-cycle-ii/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0142-linked-list-cycle-ii/Medium | Hash Table, Linked List, Two Pointershttps://leetcode-solutions-5zk.pages.dev/posts/0146-lru-cache/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0146-lru-cache/Medium | Hash Table, Linked List, Design, Doubly-Linked Listhttps://leetcode-solutions-5zk.pages.dev/posts/0149-max-points-on-a-line/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0149-max-points-on-a-line/Hard | Array, Hash Table, Math, Geometryhttps://leetcode-solutions-5zk.pages.dev/posts/0160-intersection-of-two-linked-lists/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0160-intersection-of-two-linked-lists/Easy | Hash Table, Linked List, Two Pointershttps://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/0169-majority-element/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0169-majority-element/Easy | Array, Hash Table, Divide and Conquer, Sorting, Countinghttps://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/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/0202-happy-number/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0202-happy-number/Easy | Hash Table, Math, Two Pointershttps://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/0217-contains-duplicate/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0217-contains-duplicate/Easy | Array, Hash Table, Sortinghttps://leetcode-solutions-5zk.pages.dev/posts/0219-contains-duplicate-ii/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0219-contains-duplicate-ii/Easy | Array, Hash Table, Sliding Windowhttps://leetcode-solutions-5zk.pages.dev/posts/0229-majority-element-ii/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0229-majority-element-ii/Medium | Array, Hash Table, Sorting, Countinghttps://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/0264-ugly-number-ii/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0264-ugly-number-ii/Medium | Hash Table, Math, Dynamic Programming, Heap (Priority Queue)https://leetcode-solutions-5zk.pages.dev/posts/0268-missing-number/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0268-missing-number/Easy | Array, Hash Table, Math, Binary Search, Bit Manipulation, Sortinghttps://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/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/0041-first-missing-positive/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0041-first-missing-positive/Hard | Array, Hash Tablehttps://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/0073-set-matrix-zeroes/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0073-set-matrix-zeroes/Medium | Array, Hash Table, Matrix