593-有效的正方形(Valid Square) 原文链接: https://leetcode-cn.com/problems/valid-square 英文原文Given the coordinates of four points in 2D space p1, p2, p3 an 2021-12-03 几何数学 中等
594-最长和谐子序列(Longest Harmonious Subsequence) 原文链接: https://leetcode-cn.com/problems/longest-harmonious-subsequence 英文原文We define a harmonious array as an array whe 2021-12-03 哈希表排序数组 简单
595-大的国家(Big Countries) 原文链接: https://leetcode-cn.com/problems/big-countries 英文原文Table: World +-------------+---------+ | Column Name | Type 2021-12-03 数据库 简单
596-超过5名学生的课(Classes More Than 5 Students) 原文链接: https://leetcode-cn.com/problems/classes-more-than-5-students 英文原文Table: Courses +-------------+---------+ | C 2021-12-03 数据库 简单
598-范围求和 II(Range Addition II) 原文链接: https://leetcode-cn.com/problems/range-addition-ii 英文原文You are given an m x n matrix M initialized with all 0 2021-12-03 数学数组 简单
599-两个列表的最小索引总和(Minimum Index Sum of Two Lists) 原文链接: https://leetcode-cn.com/problems/minimum-index-sum-of-two-lists 英文原文Suppose Andy and Doris want to choose a rest 2021-12-03 哈希表字符串数组 简单
600-不含连续1的非负整数(Non-negative Integers without Consecutive Ones) 原文链接: https://leetcode-cn.com/problems/non-negative-integers-without-consecutive-ones 英文原文Given a positive integer n, 2021-12-03 动态规划 困难
601-体育馆的人流量(Human Traffic of Stadium) 原文链接: https://leetcode-cn.com/problems/human-traffic-of-stadium 英文原文Table: Stadium +---------------+---------+ | Col 2021-12-03 数据库 困难
605-种花问题(Can Place Flowers) 原文链接: https://leetcode-cn.com/problems/can-place-flowers 英文原文You have a long flowerbed in which some of the plots are 2021-12-03 数组贪心 简单
606-根据二叉树创建字符串(Construct String from Binary Tree) 原文链接: https://leetcode-cn.com/problems/construct-string-from-binary-tree 英文原文Given the root of a binary tree, construc 2021-12-03 二叉树字符串树深度优先搜索 简单