原文链接: https://leetcode-cn.com/problems/number-of-good-leaf-nodes-pairs
英文原文Given the root of a binary tree and an inte
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原文链接: https://leetcode-cn.com/problems/find-the-winner-of-an-array-game
英文原文Given an integer array arr of distinct int
原文链接: https://leetcode-cn.com/problems/minimum-swaps-to-arrange-a-binary-grid
英文原文Given an n x n binary grid, in one s
原文链接: https://leetcode-cn.com/problems/minimum-number-of-vertices-to-reach-all-nodes
英文原文Given a directed acyclic
原文链接: https://leetcode-cn.com/problems/detect-cycles-in-2d-grid
英文原文Given a 2D array of characters grid of size m x n,
原文链接: https://leetcode-cn.com/problems/minimum-numbers-of-function-calls-to-make-target-array
英文原文
Your task is to fo
原文链接: https://leetcode-cn.com/problems/find-kth-bit-in-nth-binary-string
英文原文Given two positive integers n and k, the
原文链接: https://leetcode-cn.com/problems/minimum-operations-to-make-array-equal
英文原文You have an array arr of length n wh
原文链接: https://leetcode-cn.com/problems/magnetic-force-between-two-balls
英文原文In the universe Earth C-137, Rick discover
原文链接: https://leetcode-cn.com/problems/number-of-ways-to-split-a-string
英文原文Given a binary string s (a string consisti