原文链接: https://leetcode-cn.com/problems/minimum-time-to-collect-all-apples-in-a-tree
英文原文Given an undirected tree consi
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原文链接: https://leetcode-cn.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k
英文原文Given a binary string
原文链接: https://leetcode-cn.com/problems/course-schedule-iv
英文原文There are a total of numCourses courses you have to take
原文链接: https://leetcode-cn.com/problems/rearrange-words-in-a-sentence
英文原文Given a sentence text (A sentence&n
原文链接: https://leetcode-cn.com/problems/maximum-number-of-vowels-in-a-substring-of-given-length
英文原文Given a string s an
原文链接: https://leetcode-cn.com/problems/pseudo-palindromic-paths-in-a-binary-tree
英文原文Given a binary tree where node va
原文链接: https://leetcode-cn.com/problems/subrectangle-queries
英文原文Implement the class SubrectangleQueries which rec
原文链接: https://leetcode-cn.com/problems/maximum-area-of-a-piece-of-cake-after-horizontal-and-vertical-cuts
英文原文You are
原文链接: https://leetcode-cn.com/problems/reorder-routes-to-make-all-paths-lead-to-the-city-zero
英文原文There are n cities n
原文链接: https://leetcode-cn.com/problems/the-k-strongest-values-in-an-array
英文原文Given an array of integers arr and