260. Single Number III 题目 Given an array of numbers nums, in which exactly two elements appear only once and a…

76. Minimum Window Substring 题目 Given a string S and a string T, find the minimum window in S which will conta…

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题目地址：https://leetcode-cn.com/probl…题目描述：给定一个字符串，请你找出其中不含有重复字符的 最长子串 的长度。 示例 1: 输入: “abcabcbb”…

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题目： Given an array S of n integers, find three integers in S such that the sum i…

题目描述 Given a non-negative integer num, repeatedly add all its digits until the result has only one digit. For …

欢迎fork and star：Nowcoder-Repository-github 117. Populating Next Right Pointers in Each Node II 题目 Follow up fo…

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Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"Return…