854-相似度为 K 的字符串(K-Similar Strings) 原文链接: https://leetcode-cn.com/problems/k-similar-strings 英文原文Strings s1 and s2 are k-similar (for some non-negative in 2021-12-03 字符串广度优先搜索 困难
855-考场就座(Exam Room) 原文链接: https://leetcode-cn.com/problems/exam-room 英文原文There is an exam room with n seats in a single row labeled from 0 2021-12-03 有序集合设计 中等
856-括号的分数(Score of Parentheses) 原文链接: https://leetcode-cn.com/problems/score-of-parentheses 英文原文Given a balanced parentheses string s, return the scor 2021-12-03 字符串栈 中等
857-雇佣 K 名工人的最低成本(Minimum Cost to Hire K Workers) 原文链接: https://leetcode-cn.com/problems/minimum-cost-to-hire-k-workers 英文原文There are n workers. You are given two integ 2021-12-03 堆(优先队列)排序数组贪心 困难
858-镜面反射(Mirror Reflection) 原文链接: https://leetcode-cn.com/problems/mirror-reflection 英文原文There is a special square room with mirrors on each of th 2021-12-03 几何数学 中等
859-亲密字符串(Buddy Strings) 原文链接: https://leetcode-cn.com/problems/buddy-strings 英文原文Given two strings s and goal, return true if you can swap two 2021-12-03 哈希表字符串 简单
860-柠檬水找零(Lemonade Change) 原文链接: https://leetcode-cn.com/problems/lemonade-change 英文原文At a lemonade stand, each lemonade costs $5. Customers are 2021-12-03 数组贪心 简单
861-翻转矩阵后的得分(Score After Flipping Matrix) 原文链接: https://leetcode-cn.com/problems/score-after-flipping-matrix 英文原文You are given an m x n binary matrix grid. A m 2021-12-03 位运算数组矩阵贪心 中等
863-二叉树中所有距离为 K 的结点(All Nodes Distance K in Binary Tree) 原文链接: https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree 英文原文Given the root of a binary tree, the va 2021-12-03 二叉树广度优先搜索树深度优先搜索 中等
710-黑名单中的随机数(Random Pick with Blacklist) 原文链接: https://leetcode-cn.com/problems/random-pick-with-blacklist 英文原文You are given an integer n and an array of uniqu 2021-12-03 二分查找哈希表排序数学随机化 困难