609-在系统中查找重复文件(Find Duplicate File in System) 原文链接: https://leetcode-cn.com/problems/find-duplicate-file-in-system 英文原文Given a list paths of directory info, includi 2021-12-03 哈希表字符串数组 中等
611-有效三角形的个数(Valid Triangle Number) 原文链接: https://leetcode-cn.com/problems/valid-triangle-number 英文原文Given an integer array nums, return the number of tri 2021-12-03 二分查找双指针排序数组贪心 中等
617-合并二叉树(Merge Two Binary Trees) 原文链接: https://leetcode-cn.com/problems/merge-two-binary-trees 英文原文You are given two binary trees root1 and root2. Ima 2021-12-03 二叉树广度优先搜索树深度优先搜索 简单
620-有趣的电影(Not Boring Movies) 原文链接: https://leetcode-cn.com/problems/not-boring-movies 英文原文Table: Cinema +----------------+----------+ | Column Na 2021-12-03 数据库 简单
621-任务调度器(Task Scheduler) 原文链接: https://leetcode-cn.com/problems/task-scheduler 英文原文Given a characters array tasks, representing the tasks a CPU 2021-12-03 哈希表堆(优先队列)排序数组计数贪心 中等
623-在二叉树中增加一行(Add One Row to Tree) 原文链接: https://leetcode-cn.com/problems/add-one-row-to-tree 英文原文Given the root of a binary tree and two integers val an 2021-12-03 二叉树广度优先搜索树深度优先搜索 中等
627-变更性别(Swap Salary) 原文链接: https://leetcode-cn.com/problems/swap-salary 英文原文Table: Salary +-------------+----------+ | Column Name | Type 2021-12-03 数据库 简单
628-三个数的最大乘积(Maximum Product of Three Numbers) 原文链接: https://leetcode-cn.com/problems/maximum-product-of-three-numbers 英文原文Given an integer array nums, find three nu 2021-12-03 排序数学数组 简单
629-K个逆序对数组(K Inverse Pairs Array) 原文链接: https://leetcode-cn.com/problems/k-inverse-pairs-array 英文原文For an integer array nums, an inverse pair is a pair 2021-12-03 动态规划 困难
630-课程表 III(Course Schedule III) 原文链接: https://leetcode-cn.com/problems/course-schedule-iii 英文原文There are n different online courses numbered from 1 to 2021-12-03 堆(优先队列)数组贪心 困难