原文链接: https://leetcode-cn.com/problems/maximum-nesting-depth-of-two-valid-parentheses-strings
英文原文A string is a valid
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原文链接: https://leetcode-cn.com/problems/iterator-for-combination
英文原文Design the CombinationIterator class:
Combin
原文链接: https://leetcode-cn.com/problems/distinct-echo-substrings
英文原文Return the number of distinct non-empty substrings
原文链接: https://leetcode-cn.com/problems/longest-common-subsequence
英文原文Given two strings text1 and text2, return the le
原文链接: https://leetcode-cn.com/problems/longest-chunked-palindrome-decomposition
英文原文You are given a string text. You s
原文链接: https://leetcode-cn.com/problems/break-a-palindrome
英文原文Given a palindromic string of lowercase English letters
原文链接: https://leetcode-cn.com/problems/day-of-the-year
英文原文Given a string date representing a Gregorian calendar date
原文链接: https://leetcode-cn.com/problems/swap-for-longest-repeated-character-substring
英文原文You are given a string text.
原文链接: https://leetcode-cn.com/problems/maximum-number-of-words-you-can-type
英文原文There is a malfunctioning keyboard whe
原文链接: https://leetcode-cn.com/problems/compare-strings-by-frequency-of-the-smallest-character
英文原文Let the function f(s
