833-字符串中的查找与替换(Find And Replace in String) 原文链接: https://leetcode-cn.com/problems/find-and-replace-in-string 英文原文You are given a 0-indexed string s that you must 2021-12-03 字符串排序数组 中等
832-翻转图像(Flipping an Image) 原文链接: https://leetcode-cn.com/problems/flipping-an-image 英文原文Given an n x n binary matrix image, flip the image horizo 2021-12-03 双指针数组模拟矩阵 简单
834-树中距离之和(Sum of Distances in Tree) 原文链接: https://leetcode-cn.com/problems/sum-of-distances-in-tree 英文原文There is an undirected connected tree with n nodes 2021-12-03 动态规划图树深度优先搜索 困难
835-图像重叠(Image Overlap) 原文链接: https://leetcode-cn.com/problems/image-overlap 英文原文You are given two images, img1 and img2, represented as binar 2021-12-03 数组矩阵 中等
836-矩形重叠(Rectangle Overlap) 原文链接: https://leetcode-cn.com/problems/rectangle-overlap 英文原文An axis-aligned rectangle is represented as a list [x1, y 2021-12-03 几何数学 简单
837-新 21 点(New 21 Game) 原文链接: https://leetcode-cn.com/problems/new-21-game 英文原文Alice plays the following game, loosely based on the card game 2021-12-03 动态规划数学概率与统计滑动窗口 中等
838-推多米诺(Push Dominoes) 原文链接: https://leetcode-cn.com/problems/push-dominoes 英文原文There are n dominoes in a line, and we place each domino vert 2021-12-03 动态规划双指针字符串 中等
839-相似字符串组(Similar String Groups) 原文链接: https://leetcode-cn.com/problems/similar-string-groups 英文原文Two strings X and Y are similar if we can s 2021-12-03 字符串并查集广度优先搜索深度优先搜索 困难
841-钥匙和房间(Keys and Rooms) 原文链接: https://leetcode-cn.com/problems/keys-and-rooms 英文原文There are n rooms labeled from 0 to n - 1 and all the r 2021-12-03 图广度优先搜索深度优先搜索 中等
842-将数组拆分成斐波那契序列(Split Array into Fibonacci Sequence) 原文链接: https://leetcode-cn.com/problems/split-array-into-fibonacci-sequence 英文原文You are given a string of digits num, s 2021-12-03 回溯字符串 中等