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Difficulty: Hard Related Topics: Heap, Sliding Window, Dequeue Link: https://leetcode.com/problems/sliding-window-maximum/ Description You are given a 阅读全文
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Difficulty: Hard Related Topics: Array, Union Find Link: https://leetcode.com/problems/longest-consecutive-sequence/ Description Given an unsorted arr 阅读全文
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Difficulty: Hard Related Topics: Heap, Design Link: https://leetcode.com/problems/find-median-from-data-stream/ Description Median is the middle value 阅读全文
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Difficulty: Hard Related Topics: String, Dynamic Programming Link: https://leetcode.com/problems/edit-distance/ Description Given two strings word1 an 阅读全文
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Difficulty: Hard Related Topics: Tree, Design Link: https://leetcode.com/problems/serialize-and-deserialize-binary-tree/ Description Serialization is 阅读全文
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Difficulty: Hard Related Topics: Array, Two Pointers, Stack Link: https://leetcode.com/problems/trapping-rain-water/ Description Given n non-negative 阅读全文
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Difficulty: Medium Related Topics: Array, Two Pointers Link: https://leetcode.com/problems/3sum/ Description Given an array nums of n integers, are th 阅读全文
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Difficulty: Medium Related Topics: Tree, Depth-first Search, Recursion Link: https://leetcode.com/problems/validate-binary-search-tree/ Description Gi 阅读全文
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Difficulty: Medium Related Topics: String, Dynamic Programming Link: https://leetcode.com/problems/longest-palindromic-substring/ Description Given a 阅读全文
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Difficulty: Medium Related Topics: Hash Table, Two Pointers, String, Sliding Window. Link: https://leetcode.com/problems/longest-substring-without-rep 阅读全文