https://leetcode-solutions-5zk.pages.dev/tags/prefix-sum/Recent content in Prefix Sum on LeetCode 题解笔记Hugozh-cn2026 ZenzZweiMon, 11 May 2026 12:12:02 +0800https://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/1687-delivering-boxes-from-storage-to-ports/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1687-delivering-boxes-from-storage-to-ports/Hard | Array, Dynamic Programming, Segment Tree, Queue, Heap (Priority Queue), Prefix Sum, Monotonic Queuehttps://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/2132-stamping-the-grid/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2132-stamping-the-grid/Hard | Array, Greedy, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2391-minimum-amount-of-time-to-collect-garbage/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2391-minimum-amount-of-time-to-collect-garbage/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2398-maximum-number-of-robots-within-budget/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2398-maximum-number-of-robots-within-budget/Hard | Array, Binary Search, Queue, Sliding Window, Heap (Priority Queue), Prefix Sum, Monotonic Queuehttps://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/1444-number-of-ways-of-cutting-a-pizza/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1444-number-of-ways-of-cutting-a-pizza/Hard | Array, Dynamic Programming, Memoization, Matrix, Prefix Sumhttps://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/2772-apply-operations-to-make-all-array-elements-equal-to-zero/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2772-apply-operations-to-make-all-array-elements-equal-to-zero/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3578-count-partitions-with-max-min-difference-at-most-k/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3578-count-partitions-with-max-min-difference-at-most-k/Medium | Array, Dynamic Programming, Queue, Sliding Window, Prefix Sum, Monotonic Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0363-max-sum-of-rectangle-no-larger-than-k/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0363-max-sum-of-rectangle-no-larger-than-k/Hard | Array, Binary Search, Matrix, Prefix Sum, Ordered Sethttps://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/3212-count-submatrices-with-equal-frequency-of-x-and-y/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3212-count-submatrices-with-equal-frequency-of-x-and-y/Medium | Array, Matrix, Prefix Sumhttps://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/3225-maximum-score-from-grid-operations/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3225-maximum-score-from-grid-operations/Hard | Array, Dynamic Programming, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3250-find-the-count-of-monotonic-pairs-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3250-find-the-count-of-monotonic-pairs-i/Hard | Array, Math, Dynamic Programming, Combinatorics, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3251-find-the-count-of-monotonic-pairs-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3251-find-the-count-of-monotonic-pairs-ii/Hard | Array, Math, Dynamic Programming, Combinatorics, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3261-count-substrings-that-satisfy-k-constraint-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3261-count-substrings-that-satisfy-k-constraint-ii/Hard | Array, String, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/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/3333-find-the-original-typed-string-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3333-find-the-original-typed-string-ii/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3346-maximum-frequency-of-an-element-after-performing-operations-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3346-maximum-frequency-of-an-element-after-performing-operations-i/Medium | Array, Binary Search, Sliding Window, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3347-maximum-frequency-of-an-element-after-performing-operations-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3347-maximum-frequency-of-an-element-after-performing-operations-ii/Hard | Array, Binary Search, Sliding Window, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3354-make-array-elements-equal-to-zero/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3354-make-array-elements-equal-to-zero/Easy | Array, Simulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3355-zero-array-transformation-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3355-zero-array-transformation-i/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3356-zero-array-transformation-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3356-zero-array-transformation-ii/Medium | Array, Two Pointers, Binary Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3361-shift-distance-between-two-strings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3361-shift-distance-between-two-strings/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3362-zero-array-transformation-iii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3362-zero-array-transformation-iii/Medium | Array, Two Pointers, Greedy, Sorting, Heap (Priority Queue), Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3364-minimum-positive-sum-subarray/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3364-minimum-positive-sum-subarray/Easy | Array, Sliding Window, Prefix Sumhttps://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/3413-maximum-coins-from-k-consecutive-bags/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3413-maximum-coins-from-k-consecutive-bags/Medium | Array, Binary Search, Greedy, Sliding Window, Sorting, Prefix Sumhttps://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/3427-sum-of-variable-length-subarrays/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3427-sum-of-variable-length-subarrays/Easy | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3432-count-partitions-with-even-sum-difference/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3432-count-partitions-with-even-sum-difference/Easy | Array, Math, 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/3445-maximum-difference-between-even-and-odd-frequency-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3445-maximum-difference-between-even-and-odd-frequency-ii/Hard | String, Sliding Window, Enumeration, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3473-sum-of-k-subarrays-with-length-at-least-m/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3473-sum-of-k-subarrays-with-length-at-least-m/Medium | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3480-maximize-subarrays-after-removing-one-conflicting-pair/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3480-maximize-subarrays-after-removing-one-conflicting-pair/Hard | Array, Segment Tree, Enumeration, Prefix Sumhttps://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/3494-find-the-minimum-amount-of-time-to-brew-potions/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3494-find-the-minimum-amount-of-time-to-brew-potions/Medium | Array, Simulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3500-minimum-cost-to-divide-array-into-subarrays/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3500-minimum-cost-to-divide-array-into-subarrays/Hard | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3538-merge-operations-for-minimum-travel-time/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3538-merge-operations-for-minimum-travel-time/Hard | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3546-equal-sum-grid-partition-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3546-equal-sum-grid-partition-i/Medium | Array, Matrix, Enumeration, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3599-partition-array-to-minimize-xor/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3599-partition-array-to-minimize-xor/Medium | Array, Dynamic Programming, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3628-maximum-number-of-subsequences-after-one-inserting/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3628-maximum-number-of-subsequences-after-one-inserting/Medium | String, Dynamic Programming, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/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/3652-best-time-to-buy-and-sell-stock-using-strategy/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3652-best-time-to-buy-and-sell-stock-using-strategy/Medium | Array, Sliding Window, 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/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/3698-split-array-with-minimum-difference/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3698-split-array-with-minimum-difference/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3699-number-of-zigzag-arrays-i/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3699-number-of-zigzag-arrays-i/Hard | Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3707-equal-score-substrings/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3707-equal-score-substrings/Easy | String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3709-design-exam-scores-tracker/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3709-design-exam-scores-tracker/Medium | Array, Binary Search, Design, Prefix Sumhttps://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/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/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/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/3748-count-stable-subarrays/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3748-count-stable-subarrays/Hard | Array, Binary Search, Prefix Sumhttps://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/3756-concatenate-non-zero-digits-and-multiply-by-sum-ii/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3756-concatenate-non-zero-digits-and-multiply-by-sum-ii/Medium | Math, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3771-total-score-of-dungeon-runs/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3771-total-score-of-dungeon-runs/Medium | Array, Binary Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3788-maximum-score-of-a-split/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3788-maximum-score-of-a-split/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3797-count-routes-to-climb-a-rectangular-grid/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3797-count-routes-to-climb-a-rectangular-grid/Hard | Array, Dynamic Programming, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3826-minimum-partition-score/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3826-minimum-partition-score/Hard | Array, Divide and Conquer, Dynamic Programming, Queue, Prefix Sum, Monotonic Queuehttps://leetcode-solutions-5zk.pages.dev/posts/3845-maximum-subarray-xor-with-bounded-range/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3845-maximum-subarray-xor-with-bounded-range/Hard | Array, Bit Manipulation, Trie, Queue, Sliding Window, Prefix Sum, Monotonic Queuehttps://leetcode-solutions-5zk.pages.dev/posts/3862-find-the-smallest-balanced-index/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3862-find-the-smallest-balanced-index/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3864-minimum-cost-to-partition-a-binary-string/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3864-minimum-cost-to-partition-a-binary-string/Hard | String, Divide and Conquer, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3883-count-non-decreasing-arrays-with-given-digit-sums/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3883-count-non-decreasing-arrays-with-given-digit-sums/Hard | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3891-minimum-increase-to-maximize-special-indices/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3891-minimum-increase-to-maximize-special-indices/Medium | Array, Dynamic Programming, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2968-apply-operations-to-maximize-frequency-score/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2968-apply-operations-to-maximize-frequency-score/Hard | Array, Binary Search, Sliding Window, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2971-find-polygon-with-the-largest-perimeter/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2971-find-polygon-with-the-largest-perimeter/Medium | Array, Greedy, Sorting, Prefix Sumhttps://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/3015-count-the-number-of-houses-at-a-certain-distance-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3015-count-the-number-of-houses-at-a-certain-distance-i/Medium | Breadth-First Search, Graph Theory, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3017-count-the-number-of-houses-at-a-certain-distance-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3017-count-the-number-of-houses-at-a-certain-distance-ii/Hard | Graph Theory, Prefix Sumhttps://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/3028-ant-on-the-boundary/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3028-ant-on-the-boundary/Easy | Array, Simulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3070-count-submatrices-with-top-left-element-and-sum-less-than-k/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3070-count-submatrices-with-top-left-element-and-sum-less-than-k/Medium | Array, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3077-maximum-strength-of-k-disjoint-subarrays/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3077-maximum-strength-of-k-disjoint-subarrays/Hard | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3086-minimum-moves-to-pick-k-ones/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3086-minimum-moves-to-pick-k-ones/Hard | Array, Greedy, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3096-minimum-levels-to-gain-more-points/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3096-minimum-levels-to-gain-more-points/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3129-find-all-possible-stable-binary-arrays-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3129-find-all-possible-stable-binary-arrays-i/Medium | Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3130-find-all-possible-stable-binary-arrays-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3130-find-all-possible-stable-binary-arrays-ii/Hard | Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3147-taking-maximum-energy-from-the-mystic-dungeon/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3147-taking-maximum-energy-from-the-mystic-dungeon/Medium | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3152-special-array-ii/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3152-special-array-ii/Medium | Array, Binary Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3179-find-the-n-th-value-after-k-seconds/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3179-find-the-n-th-value-after-k-seconds/Medium | Array, Math, Simulation, Combinatorics, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/3191-minimum-operations-to-make-binary-array-elements-equal-to-one-i/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3191-minimum-operations-to-make-binary-array-elements-equal-to-one-i/Medium | Array, Bit Manipulation, Queue, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2680-maximum-or/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2680-maximum-or/Medium | Array, Greedy, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2681-power-of-heroes/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2681-power-of-heroes/Hard | Array, Math, Dynamic Programming, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2731-movement-of-robots/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2731-movement-of-robots/Medium | Array, Brainteaser, Sorting, Prefix Sumhttps://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/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/2906-construct-product-matrix/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2906-construct-product-matrix/Medium | Array, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2945-find-maximum-non-decreasing-array-length/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2945-find-maximum-non-decreasing-array-length/Hard | Array, Binary Search, Dynamic Programming, Stack, Queue, Monotonic Stack, Prefix Sum, Monotonic Queuehttps://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/2017-grid-game/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2017-grid-game/Medium | Array, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2024-maximize-the-confusion-of-an-exam/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2024-maximize-the-confusion-of-an-exam/Medium | String, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2055-plates-between-candles/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2055-plates-between-candles/Medium | Array, String, Binary Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2100-find-good-days-to-rob-the-bank/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2100-find-good-days-to-rob-the-bank/Medium | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2106-maximum-fruits-harvested-after-at-most-k-steps/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2106-maximum-fruits-harvested-after-at-most-k-steps/Hard | Array, Binary Search, Sliding Window, Prefix Sumhttps://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/2145-count-the-hidden-sequences/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2145-count-the-hidden-sequences/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2171-removing-minimum-number-of-magic-beans/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2171-removing-minimum-number-of-magic-beans/Medium | Array, Greedy, Sorting, Enumeration, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2207-maximize-number-of-subsequences-in-a-string/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2207-maximize-number-of-subsequences-in-a-string/Medium | String, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2209-minimum-white-tiles-after-covering-with-carpets/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2209-minimum-white-tiles-after-covering-with-carpets/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2218-maximum-value-of-k-coins-from-piles/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2218-maximum-value-of-k-coins-from-piles/Hard | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2222-number-of-ways-to-select-buildings/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2222-number-of-ways-to-select-buildings/Medium | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2234-maximum-total-beauty-of-the-gardens/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2234-maximum-total-beauty-of-the-gardens/Hard | Array, Two Pointers, Binary Search, Greedy, Sorting, Enumeration, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2245-maximum-trailing-zeros-in-a-cornered-path/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2245-maximum-trailing-zeros-in-a-cornered-path/Medium | Array, Matrix, Prefix Sumhttps://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/2256-minimum-average-difference/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2256-minimum-average-difference/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2270-number-of-ways-to-split-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2270-number-of-ways-to-split-array/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2271-maximum-white-tiles-covered-by-a-carpet/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2271-maximum-white-tiles-covered-by-a-carpet/Medium | Array, Binary Search, Greedy, Sliding Window, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2281-sum-of-total-strength-of-wizards/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2281-sum-of-total-strength-of-wizards/Hard | Array, Stack, Monotonic Stack, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2302-count-subarrays-with-score-less-than-k/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2302-count-subarrays-with-score-less-than-k/Hard | Array, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2381-shifting-letters-ii/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2381-shifting-letters-ii/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2382-maximum-segment-sum-after-removals/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2382-maximum-segment-sum-after-removals/Hard | Array, Union-Find, Prefix Sum, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/2389-longest-subsequence-with-limited-sum/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2389-longest-subsequence-with-limited-sum/Easy | Array, Binary Search, Greedy, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2406-divide-intervals-into-minimum-number-of-groups/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2406-divide-intervals-into-minimum-number-of-groups/Medium | Array, Two Pointers, Greedy, Sorting, Heap (Priority Queue), Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2420-find-all-good-indices/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2420-find-all-good-indices/Medium | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2428-maximum-sum-of-an-hourglass/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2428-maximum-sum-of-an-hourglass/Medium | Array, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2438-range-product-queries-of-powers/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2438-range-product-queries-of-powers/Medium | Array, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2439-minimize-maximum-of-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2439-minimize-maximum-of-array/Medium | Array, Binary Search, Dynamic Programming, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2448-minimum-cost-to-make-array-equal/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2448-minimum-cost-to-make-array-equal/Hard | Array, Binary Search, Greedy, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2478-number-of-beautiful-partitions/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2478-number-of-beautiful-partitions/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2483-minimum-penalty-for-a-shop/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2483-minimum-penalty-for-a-shop/Medium | String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2485-find-the-pivot-integer/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2485-find-the-pivot-integer/Easy | Math, Prefix Sumhttps://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/2528-maximize-the-minimum-powered-city/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2528-maximize-the-minimum-powered-city/Hard | Array, Binary Search, Greedy, Queue, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2536-increment-submatrices-by-one/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2536-increment-submatrices-by-one/Medium | Array, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2552-count-increasing-quadruplets/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2552-count-increasing-quadruplets/Hard | Array, Dynamic Programming, Binary Indexed Tree, Enumeration, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2559-count-vowel-strings-in-ranges/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2559-count-vowel-strings-in-ranges/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2574-left-and-right-sum-differences/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2574-left-and-right-sum-differences/Easy | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/2587-rearrange-array-to-maximize-prefix-score/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2587-rearrange-array-to-maximize-prefix-score/Medium | Array, Greedy, Sorting, Prefix Sumhttps://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/2602-minimum-operations-to-make-all-array-elements-equal/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2602-minimum-operations-to-make-all-array-elements-equal/Medium | Array, Binary Search, Sorting, Prefix Sumhttps://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/2640-find-the-score-of-all-prefixes-of-an-array/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2640-find-the-score-of-all-prefixes-of-an-array/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1292-maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold/Medium | Array, Binary Search, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1310-xor-queries-of-a-subarray/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1310-xor-queries-of-a-subarray/Medium | Array, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1314-matrix-block-sum/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1314-matrix-block-sum/Medium | Array, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1352-product-of-the-last-k-numbers/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1352-product-of-the-last-k-numbers/Medium | Array, Math, Design, Data Stream, Prefix Sumhttps://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/1413-minimum-value-to-get-positive-step-by-step-sum/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1413-minimum-value-to-get-positive-step-by-step-sum/Easy | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1420-build-array-where-you-can-find-the-maximum-exactly-k-comparisons/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1420-build-array-where-you-can-find-the-maximum-exactly-k-comparisons/Hard | Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1422-maximum-score-after-splitting-a-string/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1422-maximum-score-after-splitting-a-string/Easy | String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1423-maximum-points-you-can-obtain-from-cards/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1423-maximum-points-you-can-obtain-from-cards/Medium | Array, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1480-running-sum-of-1d-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1480-running-sum-of-1d-array/Easy | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1508-range-sum-of-sorted-subarray-sums/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1508-range-sum-of-sorted-subarray-sums/Medium | Array, Two Pointers, Binary Search, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1524-number-of-sub-arrays-with-odd-sum/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1524-number-of-sub-arrays-with-odd-sum/Medium | Array, Math, Dynamic Programming, Prefix Sumhttps://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/1588-sum-of-all-odd-length-subarrays/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1588-sum-of-all-odd-length-subarrays/Easy | Array, Math, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1589-maximum-sum-obtained-of-any-permutation/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1589-maximum-sum-obtained-of-any-permutation/Medium | Array, Greedy, Sorting, Prefix Sumhttps://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/1621-number-of-sets-of-k-non-overlapping-line-segments/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1621-number-of-sets-of-k-non-overlapping-line-segments/Medium | Math, Dynamic Programming, Combinatorics, Prefix Sumhttps://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/1664-ways-to-make-a-fair-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1664-ways-to-make-a-fair-array/Medium | Array, 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/1685-sum-of-absolute-differences-in-a-sorted-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1685-sum-of-absolute-differences-in-a-sorted-array/Medium | Array, Math, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1703-minimum-adjacent-swaps-for-k-consecutive-ones/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1703-minimum-adjacent-swaps-for-k-consecutive-ones/Hard | Array, Greedy, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1712-ways-to-split-array-into-three-subarrays/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1712-ways-to-split-array-into-three-subarrays/Medium | Array, Two Pointers, Binary Search, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1732-find-the-highest-altitude/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1732-find-the-highest-altitude/Easy | Array, Prefix Sumhttps://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/1738-find-kth-largest-xor-coordinate-value/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1738-find-kth-largest-xor-coordinate-value/Medium | Array, Divide and Conquer, Bit Manipulation, Sorting, Heap (Priority Queue), Matrix, Prefix Sum, Quickselecthttps://leetcode-solutions-5zk.pages.dev/posts/1744-can-you-eat-your-favorite-candy-on-your-favorite-day/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1744-can-you-eat-your-favorite-candy-on-your-favorite-day/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1769-minimum-number-of-operations-to-move-all-balls-to-each-box/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1769-minimum-number-of-operations-to-move-all-balls-to-each-box/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1829-maximum-xor-for-each-query/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1829-maximum-xor-for-each-query/Medium | Array, Bit Manipulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1838-frequency-of-the-most-frequent-element/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1838-frequency-of-the-most-frequent-element/Medium | Array, Binary Search, Greedy, Sliding Window, Sorting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1854-maximum-population-year/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1854-maximum-population-year/Easy | Array, Counting, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1856-maximum-subarray-min-product/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1856-maximum-subarray-min-product/Medium | Array, Stack, Monotonic Stack, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1862-sum-of-floored-pairs/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1862-sum-of-floored-pairs/Hard | Array, Math, Binary Search, Counting, Enumeration, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1871-jump-game-vii/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1871-jump-game-vii/Medium | String, Dynamic Programming, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1872-stone-game-viii/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1872-stone-game-viii/Hard | Array, Math, Dynamic Programming, Prefix Sum, Game Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/1878-get-biggest-three-rhombus-sums-in-a-grid/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1878-get-biggest-three-rhombus-sums-in-a-grid/Medium | Array, Math, Sorting, Heap (Priority Queue), Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1889-minimum-space-wasted-from-packaging/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1889-minimum-space-wasted-from-packaging/Hard | Array, Binary Search, Sorting, Prefix Sumhttps://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/1894-find-the-student-that-will-replace-the-chalk/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1894-find-the-student-that-will-replace-the-chalk/Medium | Array, Binary Search, Simulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1895-largest-magic-square/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1895-largest-magic-square/Medium | Array, Matrix, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1906-minimum-absolute-difference-queries/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1906-minimum-absolute-difference-queries/Medium | Array, Prefix Sumhttps://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/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/1959-minimum-total-space-wasted-with-k-resizing-operations/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1959-minimum-total-space-wasted-with-k-resizing-operations/Medium | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1991-find-the-middle-index-in-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1991-find-the-middle-index-in-array/Easy | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1000-minimum-cost-to-merge-stones/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1000-minimum-cost-to-merge-stones/Hard | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1004-max-consecutive-ones-iii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1004-max-consecutive-ones-iii/Medium | Array, Binary Search, Sliding Window, Prefix Sumhttps://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/1094-car-pooling/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1094-car-pooling/Medium | Array, Sorting, Heap (Priority Queue), Simulation, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/1109-corporate-flight-bookings/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1109-corporate-flight-bookings/Medium | Array, Prefix Sumhttps://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/1140-stone-game-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1140-stone-game-ii/Medium | Array, Math, Dynamic Programming, Prefix Sum, Game Theoryhttps://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/1208-get-equal-substrings-within-budget/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1208-get-equal-substrings-within-budget/Medium | String, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/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/0724-find-pivot-index/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0724-find-pivot-index/Easy | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0731-my-calendar-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0731-my-calendar-ii/Medium | Array, Binary Search, Design, Segment Tree, Prefix Sum, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0732-my-calendar-iii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0732-my-calendar-iii/Hard | Binary Search, Design, Segment Tree, Prefix Sum, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0798-smallest-rotation-with-highest-score/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0798-smallest-rotation-with-highest-score/Hard | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0813-largest-sum-of-averages/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0813-largest-sum-of-averages/Medium | Array, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0848-shifting-letters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0848-shifting-letters/Medium | Array, String, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0862-shortest-subarray-with-sum-at-least-k/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0862-shortest-subarray-with-sum-at-least-k/Hard | Array, Binary Search, Queue, Sliding Window, Heap (Priority Queue), Prefix Sum, Monotonic Queuehttps://leetcode-solutions-5zk.pages.dev/posts/0903-valid-permutations-for-di-sequence/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0903-valid-permutations-for-di-sequence/Hard | String, Dynamic Programming, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/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/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/0995-minimum-number-of-k-consecutive-bit-flips/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0995-minimum-number-of-k-consecutive-bit-flips/Hard | Array, Bit Manipulation, Queue, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0497-random-point-in-non-overlapping-rectangles/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0497-random-point-in-non-overlapping-rectangles/Medium | Array, Math, Binary Search, Reservoir Sampling, Prefix Sum, Ordered Set, 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/0528-random-pick-with-weight/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0528-random-pick-with-weight/Medium | Array, Math, Binary Search, Prefix Sum, Randomizedhttps://leetcode-solutions-5zk.pages.dev/posts/0689-maximum-sum-of-3-non-overlapping-subarrays/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0689-maximum-sum-of-3-non-overlapping-subarrays/Hard | Array, Dynamic Programming, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0713-subarray-product-less-than-k/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0713-subarray-product-less-than-k/Medium | Array, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0410-split-array-largest-sum/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0410-split-array-largest-sum/Hard | Array, Binary Search, Dynamic Programming, Greedy, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0209-minimum-size-subarray-sum/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0209-minimum-size-subarray-sum/Medium | Array, Binary Search, Sliding Window, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0238-product-of-array-except-self/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0238-product-of-array-except-self/Medium | Array, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0303-range-sum-query-immutable/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0303-range-sum-query-immutable/Easy | Array, Design, Prefix Sumhttps://leetcode-solutions-5zk.pages.dev/posts/0304-range-sum-query-2d-immutable/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0304-range-sum-query-2d-immutable/Medium | Array, Design, Matrix, Prefix Sum