https://leetcode-solutions-5zk.pages.dev/tags/monotonic-stack/Recent content in Monotonic Stack on LeetCode 题解笔记Hugozh-cn2026 ZenzZweiMon, 11 May 2026 12:12:02 +0800https://leetcode-solutions-5zk.pages.dev/posts/1776-car-fleet-ii/Thu, 30 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1776-car-fleet-ii/Hard | Array, Math, Stack, Heap (Priority Queue), Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1504-count-submatrices-with-all-ones/Wed, 29 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1504-count-submatrices-with-all-ones/Medium | Array, Dynamic Programming, Stack, Matrix, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3229-minimum-operations-to-make-array-equal-to-target/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3229-minimum-operations-to-make-array-equal-to-target/Hard | Array, Dynamic Programming, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3420-count-non-decreasing-subarrays-after-k-operations/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3420-count-non-decreasing-subarrays-after-k-operations/Hard | Array, Stack, Segment Tree, Queue, Sliding Window, Monotonic Stack, Monotonic Queuehttps://leetcode-solutions-5zk.pages.dev/posts/3430-maximum-and-minimum-sums-of-at-most-size-k-subarrays/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3430-maximum-and-minimum-sums-of-at-most-size-k-subarrays/Hard | Array, Math, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3523-make-array-non-decreasing/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3523-make-array-non-decreasing/Medium | Array, Stack, Greedy, Monotonic Stackhttps://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/3638-maximum-balanced-shipments/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3638-maximum-balanced-shipments/Medium | Array, Dynamic Programming, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3676-count-bowl-subarrays/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3676-count-bowl-subarrays/Medium | Array, Stack, Monotonic Stackhttps://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/3878-count-good-subarrays/Mon, 27 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3878-count-good-subarrays/Hard | Array, Stack, Bit Manipulation, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/3113-find-the-number-of-subarrays-where-boundary-elements-are-maximum/Sun, 26 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/3113-find-the-number-of-subarrays-where-boundary-elements-are-maximum/Hard | Array, Binary Search, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2736-maximum-sum-queries/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2736-maximum-sum-queries/Hard | Array, Binary Search, Stack, Binary Indexed Tree, Segment Tree, Sorting, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2818-apply-operations-to-maximize-score/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2818-apply-operations-to-maximize-score/Hard | Array, Math, Stack, Greedy, Sorting, Monotonic Stack, Number Theoryhttps://leetcode-solutions-5zk.pages.dev/posts/2865-beautiful-towers-i/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2865-beautiful-towers-i/Medium | Array, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2866-beautiful-towers-ii/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2866-beautiful-towers-ii/Medium | Array, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2940-find-building-where-alice-and-bob-can-meet/Sat, 25 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2940-find-building-where-alice-and-bob-can-meet/Hard | Array, Binary Search, Stack, Binary Indexed Tree, Segment Tree, Heap (Priority Queue), Monotonic Stackhttps://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/2030-smallest-k-length-subsequence-with-occurrences-of-a-letter/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2030-smallest-k-length-subsequence-with-occurrences-of-a-letter/Hard | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2104-sum-of-subarray-ranges/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2104-sum-of-subarray-ranges/Medium | Array, Stack, Monotonic Stackhttps://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/2289-steps-to-make-array-non-decreasing/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2289-steps-to-make-array-non-decreasing/Medium | Array, Linked List, Dynamic Programming, Stack, Monotonic Stack, Simulationhttps://leetcode-solutions-5zk.pages.dev/posts/2334-subarray-with-elements-greater-than-varying-threshold/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2334-subarray-with-elements-greater-than-varying-threshold/Hard | Array, Stack, Union-Find, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2454-next-greater-element-iv/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2454-next-greater-element-iv/Hard | Array, Binary Search, Stack, Sorting, Heap (Priority Queue), Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2487-remove-nodes-from-linked-list/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2487-remove-nodes-from-linked-list/Medium | Linked List, Stack, Recursion, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/2617-minimum-number-of-visited-cells-in-a-grid/Fri, 24 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/2617-minimum-number-of-visited-cells-in-a-grid/Hard | Array, Dynamic Programming, Stack, Breadth-First Search, Union-Find, Heap (Priority Queue), Matrix, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1475-final-prices-with-a-special-discount-in-a-shop/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1475-final-prices-with-a-special-discount-in-a-shop/Easy | Array, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1526-minimum-number-of-increments-on-subarrays-to-form-a-target-array/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1526-minimum-number-of-increments-on-subarrays-to-form-a-target-array/Hard | Array, Dynamic Programming, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1574-shortest-subarray-to-be-removed-to-make-array-sorted/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1574-shortest-subarray-to-be-removed-to-make-array-sorted/Medium | Array, Two Pointers, Binary Search, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1673-find-the-most-competitive-subsequence/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1673-find-the-most-competitive-subsequence/Medium | Array, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1793-maximum-score-of-a-good-subarray/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1793-maximum-score-of-a-good-subarray/Hard | Array, Two Pointers, Binary Search, Stack, Monotonic Stackhttps://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/1944-number-of-visible-people-in-a-queue/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1944-number-of-visible-people-in-a-queue/Hard | Array, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1996-the-number-of-weak-characters-in-the-game/Thu, 23 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1996-the-number-of-weak-characters-in-the-game/Medium | Array, Stack, Greedy, Sorting, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1008-construct-binary-search-tree-from-preorder-traversal/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1008-construct-binary-search-tree-from-preorder-traversal/Medium | Array, Stack, Tree, Binary Search Tree, Monotonic Stack, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/1019-next-greater-node-in-linked-list/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1019-next-greater-node-in-linked-list/Medium | Array, Linked List, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/1081-smallest-subsequence-of-distinct-characters/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1081-smallest-subsequence-of-distinct-characters/Medium | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/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/1130-minimum-cost-tree-from-leaf-values/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/1130-minimum-cost-tree-from-leaf-values/Medium | Array, Dynamic Programming, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0739-daily-temperatures/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0739-daily-temperatures/Medium | Array, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0768-max-chunks-to-make-sorted-ii/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0768-max-chunks-to-make-sorted-ii/Hard | Array, Stack, Greedy, Sorting, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0769-max-chunks-to-make-sorted/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0769-max-chunks-to-make-sorted/Medium | Array, Stack, Greedy, Sorting, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0853-car-fleet/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0853-car-fleet/Medium | Array, Stack, Sorting, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0901-online-stock-span/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0901-online-stock-span/Medium | Stack, Design, Monotonic Stack, Data Streamhttps://leetcode-solutions-5zk.pages.dev/posts/0907-sum-of-subarray-minimums/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0907-sum-of-subarray-minimums/Medium | Array, Dynamic Programming, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0962-maximum-width-ramp/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0962-maximum-width-ramp/Medium | Array, Two Pointers, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0975-odd-even-jump/Wed, 22 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0975-odd-even-jump/Hard | Array, Dynamic Programming, Stack, Sorting, Monotonic Stack, Ordered Sethttps://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/0503-next-greater-element-ii/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0503-next-greater-element-ii/Medium | Array, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0581-shortest-unsorted-continuous-subarray/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0581-shortest-unsorted-continuous-subarray/Medium | Array, Two Pointers, Stack, Greedy, Sorting, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0654-maximum-binary-tree/Tue, 21 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0654-maximum-binary-tree/Medium | Array, Divide and Conquer, Stack, Tree, Monotonic Stack, Binary Treehttps://leetcode-solutions-5zk.pages.dev/posts/0321-create-maximum-number/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0321-create-maximum-number/Hard | Array, Two Pointers, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0402-remove-k-digits/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0402-remove-k-digits/Medium | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0456-132-pattern/Mon, 20 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0456-132-pattern/Medium | Array, Binary Search, Stack, Monotonic Stack, Ordered Sethttps://leetcode-solutions-5zk.pages.dev/posts/0316-remove-duplicate-letters/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0316-remove-duplicate-letters/Medium | String, Stack, Greedy, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0042-trapping-rain-water/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0042-trapping-rain-water/Hard | Array, Two Pointers, Dynamic Programming, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0084-largest-rectangle-in-histogram/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0084-largest-rectangle-in-histogram/Hard | Array, Stack, Monotonic Stackhttps://leetcode-solutions-5zk.pages.dev/posts/0085-maximal-rectangle/Fri, 17 Apr 2026 00:00:00 +0000https://leetcode-solutions-5zk.pages.dev/posts/0085-maximal-rectangle/Hard | Array, Dynamic Programming, Stack, Matrix, Monotonic Stack