Given two integer arrays A and B, return the maximum length of an subarray that appears in both arrays. 题目意思是给…

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题目： Given an array S of n integers, are there elements a, b, c, and d&…

题目： Given an unsorted integer array, find the first missing positive integer. For example, Given [1,2,0]&…

Sqrt Implement int sqrt(int x). Compute and return the square root of x. 二分搜索 复杂度 时间 O(1) 因为整数长度有限 空间 O(1) 思路 …

Total Accepted: 200641 Total Submissions: 798974 Difficulty: Medium Contributor: LeetCode Given a string s, fi…

leetcode – 31. Next Permutation – Medium descrition Implement next permutation, which rearranges n…

基本常识 时间复杂度百度百科 空间复杂度百度百科 空间复杂度是O（1）是什么意思 O（1）指额外空间相对于输入数据量来说是常数 中位数百度百科 常见OJ评判结果对照表，作为ACMer你懂得！ 什么是极小化极大算法？ Mi…

题目链接：https://leetcode.com/problems/median-of-two-sorted-arrays/ 题目难度：Hard 题目描述： There are two sorted arrays nu…

Given n nodes in a graph labeled from1 to `n. There is no edges in the graph at beginning. You need to support…