- 昨日不在
- 4/28一本神书:《数据密集型应用系统设计》
- 4/28第一章:可靠性,可扩展性,可维护性
- 4/28第十章:批处理
- 4/28第十一章:流处理
- 4/28第十二章:数据系统的未来
- 4/28第二章:数据模型与查询语言
- 4/28第三章:存储与检索
- 4/28第四章:数据编码与演化
- 4/28第五章:数据复制
- 4/28第六章:分区
- 4/28第七章:事务
- 4/28第八章:分布式系统的挑战
- 4/28第九章:一致性与共识
- 3/28留言板
- 3/14LeetCode题解汇总
- 3/71. Two Sum 两数之和
- 3/7100. Same Tree 相同的树
- 3/71001. Grid Illumination 网格照明
- 3/71002. Find Common Characters 查找共用字符
- 3/71003. Check If Word Is Valid After Substitutions 检查替换后的词是否有效
- 3/71004. Max Consecutive Ones III 最大连续1的个数 III
- 3/71005. Maximize Sum Of Array After K Negations K 次取反后最大化的数组和
- 3/71006. Clumsy Factorial 笨阶乘
- 3/71007. Minimum Domino Rotations For Equal Row 行相等的最少多米诺旋转
- 3/71008. Construct Binary Search Tree from Preorder Traversal 前序遍历构造二叉搜索树
- 3/7101. Symmetric Tree 对称二叉树
- 3/71012. Numbers With Repeated Digits 至少有 1 位重复的数字
- 3/71013. Partition Array Into Three Parts With Equal Sum 将数组分成和相等的三个部分
- 3/71014. Best Sightseeing Pair 最佳观光组合
- 3/71018. Binary Prefix Divisible By 5 可被 5 整除的二进制前缀
- 3/71019. Next Greater Node In Linked List 链表中的下一个更大节点
- 3/7102. Binary Tree Level Order Traversal 二叉树的层序遍历
- 3/71020. Number of Enclaves 飞地的数量
- 3/71021. Remove Outermost Parentheses 删除最外层的括号
- 3/71022. Sum of Root To Leaf Binary Numbers 从根到叶的二进制数之和
- 3/71023. Camelcase Matching 驼峰式匹配
- 3/71024. Video Stitching 视频拼接
- 3/71025. Divisor Game 除数博弈
- 3/71029. Two City Scheduling 两地调度
- 3/71030. Matrix Cells in Distance Order 距离顺序排列矩阵单元格
- 3/71033. Moving Stones Until Consecutive 移动石子直到连续
- 3/71037. Valid Boomerang 有效的回旋镖
- 3/7104. Maximum Depth of Binary Tree 二叉树的最大深度
- 3/71041. Robot Bounded In Circle 困于环中的机器人
- 3/71042. Flower Planting With No Adjacent 不邻接植花
- 3/71046. Last Stone Weight 最后一块石头的重量
- 3/71047. Remove All Adjacent Duplicates In String 删除字符串中的所有相邻重复项
- 3/7105. Construct Binary Tree from Preorder and Inorder Traversal 从前序与中序遍历序列构造二叉树
- 3/71051. Height Checker 高度检查器
- 3/71056. Confusing Number 易混淆数
- 3/7106. Construct Binary Tree from Inorder and Postorder Traversal 从中序与后序遍历序列构造二叉树
- 3/71060. Missing Element in Sorted Array 有序数组中的缺失元素
- 3/71064. Fixed Point 不动点
- 3/71065. Index Pairs of a String 字符串的索引对
- 3/7107. Binary Tree Level Order Traversal II 二叉树的层序遍历 II
- 3/71071. Greatest Common Divisor of Strings 字符串的最大公因子
- 3/71079. Letter Tile Possibilities 活字印刷
- 3/7108. Convert Sorted Array to Binary Search Tree 将有序数组转换为二叉搜索树
- 3/71085. Sum of Digits in the Minimum Number 最小元素各数位之和
- 3/71086. High Five 前五科的均分
- 3/7109. Convert Sorted List to Binary Search Tree 有序链表转换二叉搜索树
- 3/71094. Car Pooling 拼车
- 3/71095. Find in Mountain Array 山脉数组中查找目标值
- 3/71099. Two Sum Less Than K 小于 K 的两数之和
- 3/711. Container With Most Water 盛最多水的容器
- 3/71101. The Earliest Moment When Everyone Become Friends 彼此熟识的最早时间
- 3/71102. Path With Maximum Minimum Value 得分最高的路径
- 3/7111. Minimum Depth of Binary Tree 二叉树的最小深度
- 3/71110. Delete Nodes And Return Forest 删点成林
- 3/71111. Maximum Nesting Depth of Two Valid Parentheses Strings 有效括号的嵌套深度
- 3/71114. Print in Order 按序打印
- 3/71118. Number of Days in a Month 一月有多少天
- 3/71119. Remove Vowels from a String 删去字符串中的元音
- 3/7112. Path Sum 路径总和
- 3/71120. Maximum Average Subtree 子树的最大平均值
- 3/71128. Number of Equivalent Domino Pairs 等价多米诺骨牌对的数量
- 3/7113. Path Sum II 路径总和 II
- 3/71133. Largest Unique Number 最大唯一数
- 3/71134. Armstrong Number 阿姆斯特朗数
- 3/71135. Connecting Cities With Minimum Cost 最低成本联通所有城市
- 3/71137. N-th Tribonacci Number 第 N 个泰波那契数
- 3/7114. Flatten Binary Tree to Linked List 二叉树展开为链表
- 3/7115. Distinct Subsequences 不同的子序列
- 3/71150. Check If a Number Is Majority Element in a Sorted Array 检查一个数是否在数组中占绝大多数
- 3/71151. Minimum Swaps to Group All 1's Together 最少交换次数来组合所有的 1
- 3/71154. Day of the Year 一年中的第几天
- 3/7116. Populating Next Right Pointers in Each Node 填充每个节点的下一个右侧节点指针
- 3/71160. Find Words That Can Be Formed by Characters 拼写单词
- 3/71161. Maximum Level Sum of a Binary Tree 最大层内元素和
- 3/71162. As Far from Land as Possible 地图分析
- 3/71165. Single-Row Keyboard 单行键盘
- 3/71166. Design File System 设计文件系统
- 3/71167. Minimum Cost to Connect Sticks 连接棒材的最低费用
- 3/7117. Populating Next Right Pointers in Each Node II 填充每个节点的下一个右侧节点指针 II
- 3/71170. Compare Strings by Frequency of the Smallest Character 比较字符串最小字母出现频次
- 3/71171. Remove Zero Sum Consecutive Nodes from Linked List 从链表中删去总和值为零的连续节点
- 3/7118. Pascal's Triangle 杨辉三角
- 3/71180. Count Substrings with Only One Distinct Letter 统计只含单一字母的子串
- 3/71181. Before and After Puzzle 前后拼接
- 3/71182. Shortest Distance to Target Color 与目标颜色间的最短距离
- 3/71185. Day of the Week 一周中的第几天
- 3/7119. Pascal's Triangle II 杨辉三角 II
- 3/712. Integer to Roman 整数转罗马数字
- 3/7120. Triangle 三角形最小路径和
- 3/71200. Minimum Absolute Difference 最小绝对差
- 3/71208. Get Equal Substrings Within Budget 尽可能使字符串相等
- 3/7121. Best Time to Buy and Sell Stock 买卖股票的最佳时机
- 3/7122. Best Time to Buy and Sell Stock II 买卖股票的最佳时机 II
- 3/71221. Split a String in Balanced Strings 分割平衡字符串
- 3/71222. Queens That Can Attack the King 可以攻击国王的皇后
- 3/7123. Best Time to Buy and Sell Stock III 买卖股票的最佳时机 III
- 3/7124. Binary Tree Maximum Path Sum 二叉树中的最大路径和
- 3/7125. Valid Palindrome 验证回文串
- 3/7127. Word Ladder 单词接龙
- 3/7129. Sum Root to Leaf Numbers 求根节点到叶节点数字之和
- 3/713. Roman to Integer 罗马数字转整数
- 3/71305. All Elements in Two Binary Search Trees 两棵二叉搜索树中的所有元素
- 3/7131. Palindrome Partitioning 分割回文串
- 3/7133. Clone Graph 克隆图
- 3/7136. Single Number 只出现一次的数字
- 3/7137. Single Number II 只出现一次的数字 II
- 3/7138. Copy List with Random Pointer 复制带随机指针的链表
- 3/7139. Word Break 单词拆分
- 3/71399. Count Largest Group 统计最大组的数目
- 3/714. Longest Common Prefix 最长公共前缀
- 3/7140. Word Break II 单词拆分 II
- 3/71400. Construct K Palindrome Strings 构造 K 个回文字符串
- 3/71401. Circle and Rectangle Overlapping 圆和矩形是否有重叠
- 3/71402. Reducing Dishes 做菜顺序
- 3/71403. Minimum Subsequence in Non-Increasing Order 非递增顺序的最小子序列
- 3/71404. Number of Steps to Reduce a Number in Binary Representation to One 将二进制表示减到 1 的步骤数
- 3/71405. Longest Happy String 最长快乐字符串
- 3/71408. String Matching in an Array 数组中的字符串匹配
- 3/71409. Queries on a Permutation With Key 查询带键的排列
- 3/7141. Linked List Cycle 环形链表
- 3/71410. HTML Entity Parser HTML 实体解析器
- 3/71413. Minimum Value to Get Positive Step by Step Sum 逐步求和得到正数的最小值
- 3/71414. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K 和为 K 的最少斐波那契数字数目
- 3/71415. The k-th Lexicographical String of All Happy Strings of Length n 长度为 n 的开心字符串中字典序第 k 小的字符串
- 3/71417. Reformat The String 重新格式化字符串
- 3/71418. Display Table of Food Orders in a Restaurant 点菜展示表
- 3/71419. Minimum Number of Frogs Croaking 数青蛙
- 3/7142. Linked List Cycle II 环形链表 II
- 3/71423. Maximum Points You Can Obtain from Cards 可获得的最大点数
- 3/7143. Reorder List 重排链表
- 3/71431. Kids With the Greatest Number of Candies 拥有最多糖果的孩子
- 3/71432. Max Difference You Can Get From Changing an Integer 改变一个整数能得到的最大差值
- 3/71433. Check If a String Can Break Another String 检查一个字符串是否可以打破另一个字符串
- 3/71436. Destination City 旅行终点站
- 3/71437. Check If All 1's Are at Least Length K Places Away 是否所有 1 都至少相隔 k 个元素
- 3/71438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit 绝对差不超过限制的最长连续子数组
- 3/7144. Binary Tree Preorder Traversal 二叉树的前序遍历
- 3/7145. Binary Tree Postorder Traversal 二叉树的后序遍历
- 3/7146. LRU Cache LRU 缓存
- 3/71460. Make Two Arrays Equal by Reversing Sub-arrays 通过翻转子数组使两个数组相等
- 3/71461. Check If a String Contains All Binary Codes of Size K 检查一个字符串是否包含所有长度为 K 的二进制子串
- 3/71462. Course Schedule IV 课程表 IV
- 3/71464. Maximum Product of Two Elements in an Array 数组中两元素的最大乘积
- 3/71465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts 切割后面积最大的蛋糕
- 3/71466. Reorder Routes to Make All Paths Lead to the City Zero 重新规划路线
- 3/7147. Insertion Sort List 对链表进行插入排序
- 3/71470. Shuffle the Array 重新排列数组
- 3/71471. The k Strongest Values in an Array 数组中的 k 个最强值
- 3/71472. Design Browser History 设计浏览器历史记录
- 3/7148. Sort List 排序链表
- 3/7149. Max Points on a Line 直线上最多的点数
- 3/715. 3Sum 三数之和
- 3/7150. Evaluate Reverse Polish Notation 逆波兰表达式求值
- 3/7151. Reverse Words in a String 颠倒字符串中的单词
- 3/7152. Maximum Product Subarray 乘积最大子数组
- 3/7153. Find Minimum in Rotated Sorted Array 寻找旋转排序数组中的最小值
- 3/7154. Find Minimum in Rotated Sorted Array II 寻找旋转排序数组中的最小值 II
- 3/7155. Min Stack 最小栈
- 3/7156. Binary Tree Upside Down 上下翻转二叉树
- 3/7157. Read N Characters Given Read4 用 Read4 读取 N 个字符
- 3/71579. Remove Max Number of Edges to Keep Graph Fully Traversable 保证图可完全遍历
- 3/716. 3Sum Closest 最接近的三数之和
- 3/7160. Intersection of Two Linked Lists 相交链表
- 3/7162. Find Peak Element 寻找峰值
- 3/7163. Missing Ranges 缺失的区间
- 3/71631. Path With Minimum Effort 最小体力消耗路径
- 3/7165. Compare Version Numbers 比较版本号
- 3/7166. Fraction to Recurring Decimal 分数到小数
- 3/7167. Two Sum II - Input Array Is Sorted 两数之和 II - 输入有序数组
- 3/7168. Excel Sheet Column Title Excel表列名称
- 3/7169. Majority Element 多数元素
- 3/717. Letter Combinations of a Phone Number 电话号码的字母组合
- 3/7170. Two Sum III - Data structure design 两数之和 III - 数据结构设计
- 3/7171. Excel Sheet Column Number Excel 表列序号
- 3/7172. Factorial Trailing Zeroes 阶乘后的零
- 3/7173. Binary Search Tree Iterator 二叉搜索树迭代器
- 3/7174. Dungeon Game 地下城游戏
- 3/71768. Merge Strings Alternately 交替合并字符串
- 3/71769. Minimum Number of Operations to Move All Balls to Each Box 移动所有球到每个盒子所需的最小操作数
- 3/718. 4Sum 四数之和
- 3/71823. Find the Winner of the Circular Game 找出游戏的获胜者
- 3/7186. Reverse Words in a String II 翻转字符串里的单词 II
- 3/7187. Repeated DNA Sequences 重复的DNA序列
- 3/7188. Best Time to Buy and Sell Stock IV 买卖股票的最佳时机 IV
- 3/7189. Rotate Array 轮转数组
- 3/719. Remove Nth Node From End of List 删除链表的倒数第 N 个结点
- 3/7190. Reverse Bits 颠倒二进制位
- 3/7191. Number of 1 Bits 位1的个数
- 3/7198. House Robber 打家劫舍
- 3/7199. Binary Tree Right Side View 二叉树的右视图
- 3/72. Add Two Numbers 两数相加
- 3/720. Valid Parentheses 有效的括号
- 3/7200. Number of Islands 岛屿数量
- 3/7201. Bitwise AND of Numbers Range 数字范围按位与
- 3/7202. Happy Number 快乐数
- 3/7203. Remove Linked List Elements 移除链表元素
- 3/7204. Count Primes 计数质数
- 3/7205. Isomorphic Strings 同构字符串
- 3/7206. Reverse Linked List 反转链表
- 3/7207. Course Schedule 课程表
- 3/7208. Implement Trie (Prefix Tree) 实现 Trie (前缀树)
- 3/7209. Minimum Size Subarray Sum 长度最小的子数组
- 3/721. Merge Two Sorted Lists 合并两个有序链表
- 3/7210. Course Schedule II 课程表 II
- 3/7211. Design Add and Search Words Data Structure 添加与搜索单词 - 数据结构设计
- 3/7212. Word Search II 单词搜索 II
- 3/7213. House Robber II 打家劫舍 II
- 3/7214. Shortest Palindrome 最短回文串
- 3/7215. Kth Largest Element in an Array 数组中的第K个最大元素
- 3/7216. Combination Sum III 组合总和 III
- 3/7217. Contains Duplicate 存在重复元素
- 3/7219. Contains Duplicate II 存在重复元素 II
- 3/722. Generate Parentheses 括号生成
- 3/7221. Maximal Square 最大正方形
- 3/7222. Count Complete Tree Nodes 完全二叉树的节点个数
- 3/7223. Rectangle Area 矩形面积
- 3/7224. Basic Calculator 基本计算器
- 3/7225. Implement Stack using Queues 用队列实现栈
- 3/7226. Invert Binary Tree 翻转二叉树
- 3/7227. Basic Calculator II 基本计算器 II
- 3/7228. Summary Ranges 汇总区间
- 3/7229. Majority Element II 多数元素 II
- 3/723. Merge k Sorted Lists 合并K个升序链表
- 3/7230. Kth Smallest Element in a BST 二叉搜索树中第K小的元素
- 3/7231. Power of Two 2 的幂
- 3/7232. Implement Queue using Stacks 用栈实现队列
- 3/7234. Palindrome Linked List 回文链表
- 3/7235. Lowest Common Ancestor of a Binary Search Tree 二叉搜索树的最近公共祖先
- 3/7236. Lowest Common Ancestor of a Binary Tree 二叉树的最近公共祖先
- 3/7237. Delete Node in a Linked List 删除链表中的节点
- 3/7238. Product of Array Except Self 除自身以外数组的乘积
- 3/7239. Sliding Window Maximum 滑动窗口最大值
- 3/7240. Search a 2D Matrix II 搜索二维矩阵 II
- 3/7241. Different Ways to Add Parentheses 为运算表达式设计优先级
- 3/7242. Valid Anagram 有效的字母异位词
- 3/7243. Shortest Word Distance 最短单词距离
- 3/7244. Shortest Word Distance II 最短单词距离 II
- 3/7245. Shortest Word Distance III 最短单词距离 III
- 3/7246. Strobogrammatic Number 中心对称数
- 3/7252. Meeting Rooms 会议室
- 3/7253. Meeting Rooms II 会议室 II
- 3/7256. Paint House 粉刷房子
- 3/7257. Binary Tree Paths 二叉树的所有路径
- 3/7258. Add Digits 各位相加
- 3/7259. 3Sum Smaller 较小的三数之和
- 3/726. Remove Duplicates from Sorted Array 删除有序数组中的重复项
- 3/7260. Single Number III 只出现一次的数字 III
- 3/7263. Ugly Number 丑数
- 3/7264. Ugly Number II 丑数 II
- 3/7266. Palindrome Permutation 回文排列
- 3/7268. Missing Number 丢失的数字
- 3/727. Remove Element 移除元素
- 3/7270. Closest Binary Search Tree Value 最接近的二叉搜索树值
- 3/7274. H-Index H 指数
- 3/7275. H-Index II H 指数 II
- 3/7276. Paint Fence 栅栏涂色
- 3/7277. Find the Celebrity 搜寻名人
- 3/7278. First Bad Version 第一个错误的版本
- 3/7279. Perfect Squares 完全平方数
- 3/728. Implement strStr() 实现 strStr()
- 3/7280. Wiggle Sort 摆动排序
- 3/7281. Zigzag Iterator 锯齿迭代器
- 3/7283. Move Zeroes 移动零
- 3/7284. Peeking Iterator 顶端迭代器
- 3/7286. Walls and Gates 墙与门
- 3/7287. Find the Duplicate Number 寻找重复数
- 3/7289. Game of Life 生命游戏
- 3/7290. Word Pattern 单词规律
- 3/7292. Nim Game Nim 游戏
- 3/7293. Flip Game 翻转游戏
- 3/7294. Flip Game II 翻转游戏 II
- 3/7295. Find Median from Data Stream 数据流的中位数
- 3/7297. Serialize and Deserialize Binary Tree 二叉树的序列化与反序列化
- 3/7299. Bulls and Cows 猜数字游戏
- 3/73. Longest Substring Without Repeating Characters 无重复字符的最长子串
- 3/7300. Longest Increasing Subsequence 最长递增子序列
- 3/7303. Range Sum Query - Immutable 区域和检索 - 数组不可变
- 3/7304. Range Sum Query 2D - Immutable 二维区域和检索 - 矩阵不可变
- 3/7306. Additive Number 累加数
- 3/7309. Best Time to Buy and Sell Stock with Cooldown 最佳买卖股票时机含冷冻期
- 3/731. Next Permutation 下一个排列
- 3/7310. Minimum Height Trees 最小高度树
- 3/7311. Sparse Matrix Multiplication 稀疏矩阵的乘法
- 3/7312. Burst Balloons 戳气球
- 3/7316. Remove Duplicate Letters 去除重复字母
- 3/7318. Maximum Product of Word Lengths 最大单词长度乘积
- 3/7319. Bulb Switcher 灯泡开关
- 3/7320. Generalized Abbreviation 列举单词的全部缩写
- 3/7322. Coin Change 零钱兑换
- 3/7323. Number of Connected Components in an Undirected Graph 无向图中连通分量的数目
- 3/7325. Maximum Size Subarray Sum Equals k 和等于 k 的最长子数组长度
- 3/7326. Power of Three 3 的幂
- 3/7328. Odd Even Linked List 奇偶链表
- 3/7329. Longest Increasing Path in a Matrix 矩阵中的最长递增路径
- 3/733. Search in Rotated Sorted Array 搜索旋转排序数组
- 3/7331. Verify Preorder Serialization of a Binary Tree 验证二叉树的前序序列化
- 3/7332. Reconstruct Itinerary 重新安排行程
- 3/7333. Largest BST Subtree 最大 BST 子树
- 3/7334. Increasing Triplet Subsequence 递增的三元子序列
- 3/7336. Palindrome Pairs 回文对
- 3/7337. House Robber III 打家劫舍 III
- 3/7338. Counting Bits 比特位计数
- 3/7339. Nested List Weight Sum 嵌套列表权重和
- 3/734. Find First and Last Position of Element in Sorted Array 在排序数组中查找元素的第一个和最后一个位置
- 3/7341. Flatten Nested List Iterator 扁平化嵌套列表迭代器
- 3/7342. Power of Four 4的幂
- 3/7343. Integer Break 整数拆分
- 3/7344. Reverse String 反转字符串
- 3/7345. Reverse Vowels of a String 反转字符串中的元音字母
- 3/7346. Moving Average from Data Stream 数据流中的移动平均值
- 3/7347. Top K Frequent Elements 前 K 个高频元素
- 3/7349. Intersection of Two Arrays 两个数组的交集
- 3/735. Search Insert Position 搜索插入位置
- 3/7350. Intersection of Two Arrays II 两个数组的交集 II
- 3/7355. Design Twitter 设计推特
- 3/7357. Count Numbers with Unique Digits 统计各位数字都不同的数字个数
- 3/7358. Rearrange String k Distance Apart K 距离间隔重排字符串
- 3/7359. Logger Rate Limiter 日志速率限制器
- 3/736. Valid Sudoku 有效的数独
- 3/7361. Bomb Enemy 轰炸敌人
- 3/7362. Design Hit Counter 敲击计数器
- 3/7363. Max Sum of Rectangle No Larger Than K 矩形区域不超过 K 的最大数值和
- 3/7364. Nested List Weight Sum II 加权嵌套序列和 II
- 3/7365. Water and Jug Problem 水壶问题
- 3/7366. Find Leaves of Binary Tree 寻找二叉树的叶子节点
- 3/7367. Valid Perfect Square 有效的完全平方数
- 3/7368. Largest Divisible Subset 最大整除子集
- 3/7369. Plus One Linked List 给单链表加一
- 3/7370. Range Addition 区间加法
- 3/7371. Sum of Two Integers 两整数之和
- 3/7372. Super Pow 超级次方
- 3/7373. Find K Pairs with Smallest Sums 查找和最小的 K 对数字
- 3/7374. Guess Number Higher or Lower 猜数字大小
- 3/7375. Guess Number Higher or Lower II 猜数字大小 II
- 3/7376. Wiggle Subsequence 摆动序列
- 3/7377. Combination Sum IV 组合总和 Ⅳ
- 3/7378. Kth Smallest Element in a Sorted Matrix 有序矩阵中第 K 小的元素
- 3/7379. Design Phone Directory 电话目录管理系统
- 3/738. Count and Say 外观数列
- 3/7380. Insert Delete GetRandom O(1) O(1) 时间插入、删除和获取随机元素
- 3/7382. Linked List Random Node 链表随机节点
- 3/7383. Ransom Note 赎金信
- 3/7384. Shuffle an Array 打乱数组
- 3/7385. Mini Parser 迷你语法分析器
- 3/7386. Lexicographical Numbers 字典序排数
- 3/7387. First Unique Character in a String 字符串中的第一个唯一字符
- 3/7388. Longest Absolute File Path 文件的最长绝对路径
- 3/7389. Find the Difference 找不同
- 3/739. Combination Sum 组合总和
- 3/7390. Elimination Game 消除游戏
- 3/7392. Is Subsequence 判断子序列
- 3/7393. UTF-8 Validation UTF-8 编码验证
- 3/7394. Decode String 字符串解码
- 3/7395. Longest Substring with At Least K Repeating Characters 至少有 K 个重复字符的最长子串
- 3/7396. Rotate Function 旋转函数
- 3/7397. Integer Replacement 整数替换
- 3/7398. Random Pick Index 随机数索引
- 3/7399. Evaluate Division 除法求值
- 3/74. Median of Two Sorted Arrays 寻找两个正序数组的中位数
- 3/740. Combination Sum II 组合总和 II
- 3/7400. Nth Digit 第 N 位数字
- 3/7401. Binary Watch 二进制手表
- 3/7402. Remove K Digits 移掉 K 位数字
- 3/7404. Sum of Left Leaves 左叶子之和
- 3/7405. Convert a Number to Hexadecimal 数字转换为十六进制数
- 3/7406. Queue Reconstruction by Height 根据身高重建队列
- 3/7408. Valid Word Abbreviation 有效单词缩写
- 3/7409. Longest Palindrome 最长回文串
- 3/7412. Fizz Buzz Fizz Buzz
- 3/7413. Arithmetic Slices 等差数列划分
- 3/7414. Third Maximum Number 第三大的数
- 3/7415. Add Strings 字符串相加
- 3/7416. Partition Equal Subset Sum 分割等和子集
- 3/7417. Pacific Atlantic Water Flow 太平洋大西洋水流问题
- 3/7419. Battleships in a Board 甲板上的战舰
- 3/742. Trapping Rain Water 接雨水
- 3/7421. Maximum XOR of Two Numbers in an Array 数组中两个数的最大异或值
- 3/7422. Valid Word Square 有效的单词方块
- 3/7423. Reconstruct Original Digits from English 从英文中重建数字
- 3/7424. Longest Repeating Character Replacement 替换后的最长重复字符
- 3/7426. Convert Binary Search Tree to Sorted Doubly Linked List 将二叉搜索树转化为排序的双向链表
- 3/7427. Construct Quad Tree 建立四叉树
- 3/7429. N-ary Tree Level Order Traversal N 叉树的层序遍历
- 3/743. Multiply Strings 字符串相乘
- 3/7430. Flatten a Multilevel Doubly Linked List 扁平化多级双向链表
- 3/7433. Minimum Genetic Mutation 最小基因变化
- 3/7434. Number of Segments in a String 字符串中的单词数
- 3/7435. Non-overlapping Intervals 无重叠区间
- 3/7436. Find Right Interval 寻找右区间
- 3/7437. Path Sum III 路径总和 III
- 3/7438. Find All Anagrams in a String 找到字符串中所有字母异位词
- 3/7441. Arranging Coins 排列硬币
- 3/7442. Find All Duplicates in an Array 数组中重复的数据
- 3/7443. String Compression 压缩字符串
- 3/7445. Add Two Numbers II 两数相加 II
- 3/7447. Number of Boomerangs 回旋镖的数量
- 3/7448. Find All Numbers Disappeared in an Array 找到所有数组中消失的数字
- 3/7449. Serialize and Deserialize BST 序列化和反序列化二叉搜索树
- 3/745. Jump Game II 跳跃游戏 II
- 3/7450. Delete Node in a BST 删除二叉搜索树中的节点
- 3/7451. Sort Characters By Frequency 根据字符出现频率排序
- 3/7452. Minimum Number of Arrows to Burst Balloons 用最少数量的箭引爆气球
- 3/7453. Minimum Moves to Equal Array Elements 最小操作次数使数组元素相等
- 3/7454. 4Sum II 四数相加 II
- 3/7455. Assign Cookies 分发饼干
- 3/7456. 132 Pattern 132 模式
- 3/7457. Circular Array Loop 环形数组是否存在循环
- 3/7458. Poor Pigs 可怜的小猪
- 3/7459. Repeated Substring Pattern 重复的子字符串
- 3/746. Permutations 全排列
- 3/7461. Hamming Distance 汉明距离
- 3/7462. Minimum Moves to Equal Array Elements II 最少移动次数使数组元素相等 II
- 3/7463. Island Perimeter 岛屿的周长
- 3/7467. Unique Substrings in Wraparound String 环绕字符串中唯一的子字符串
- 3/7468. Validate IP Address 验证IP地址
- 3/7469. Convex Polygon 凸多边形
- 3/747. Permutations II 全排列 II
- 3/7470. Implement Rand10() Using Rand7() 用 Rand7() 实现 Rand10()
- 3/7472. Concatenated Words 连接词
- 3/7473. Matchsticks to Square 火柴拼正方形
- 3/7474. Ones and Zeroes 一和零
- 3/7475. Heaters 供暖器
- 3/7476. Number Complement 数字的补数
- 3/7477. Total Hamming Distance 汉明距离总和
- 3/7478. Generate Random Point in a Circle 在圆内随机生成点
- 3/7479. Largest Palindrome Product 最大回文数乘积
- 3/748. Rotate Image 旋转图像
- 3/7480. Sliding Window Median 滑动窗口中位数
- 3/7481. Magical String 神奇字符串
- 3/7482. License Key Formatting 密钥格式化
- 3/7485. Max Consecutive Ones 最大连续 1 的个数
- 3/7486. Predict the Winner 预测赢家
- 3/7487. Max Consecutive Ones II 最大连续1的个数 II
- 3/749. Group Anagrams 字母异位词分组
- 3/7490. The Maze 迷宫
- 3/7491. Increasing Subsequences 递增子序列
- 3/7492. Construct the Rectangle 构造矩形
- 3/7494. Target Sum 目标和
- 3/7495. Teemo Attacking 提莫攻击
- 3/7496. Next Greater Element I 下一个更大元素 I
- 3/7497. Random Point in Non-overlapping Rectangles 非重叠矩形中的随机点
- 3/7498. Diagonal Traverse 对角线遍历
- 3/75. Longest Palindromic Substring 最长回文子串
- 3/750. Pow(x, n) Pow(x, n)
- 3/7500. Keyboard Row 键盘行
- 3/7501. Find Mode in Binary Search Tree 二叉搜索树中的众数
- 3/7503. Next Greater Element II 下一个更大元素 II
- 3/7504. Base 7 七进制数
- 3/7505. The Maze II 迷宫 II
- 3/7506. Relative Ranks 相对名次
- 3/7507. Perfect Number 完美数
- 3/7508. Most Frequent Subtree Sum 出现次数最多的子树元素和
- 3/7509. Fibonacci Number 斐波那契数
- 3/751. N-Queens N 皇后
- 3/7513. Find Bottom Left Tree Value 找树左下角的值
- 3/7515. Find Largest Value in Each Tree Row 在每个树行中找最大值
- 3/7516. Longest Palindromic Subsequence 最长回文子序列
- 3/7518. Coin Change 2 零钱兑换 II
- 3/7519. Random Flip Matrix 随机翻转矩阵
- 3/752. N-Queens II N皇后 II
- 3/7520. Detect Capital 检测大写字母
- 3/7521. Longest Uncommon Subsequence I 最长特殊序列 Ⅰ
- 3/7522. Longest Uncommon Subsequence II 最长特殊序列 II
- 3/7525. Contiguous Array 连续数组
- 3/7526. Beautiful Arrangement 优美的排列
- 3/7528. Random Pick with Weight 按权重随机选择
- 3/7529. Minesweeper 扫雷游戏
- 3/753. Maximum Subarray 最大子数组和
- 3/7530. Minimum Absolute Difference in BST 二叉搜索树的最小绝对差
- 3/7532. K-diff Pairs in an Array 数组中的 k-diff 数对
- 3/7535. Encode and Decode TinyURL TinyURL 的加密与解密
- 3/7536. Construct Binary Tree from String 从字符串生成二叉树
- 3/7537. Complex Number Multiplication 复数乘法
- 3/7538. Convert BST to Greater Tree 把二叉搜索树转换为累加树
- 3/7539. Minimum Time Difference 最小时间差
- 3/754. Spiral Matrix 螺旋矩阵
- 3/7540. Single Element in a Sorted Array 有序数组中的单一元素
- 3/7541. Reverse String II 反转字符串 II
- 3/7543. Diameter of Binary Tree 二叉树的直径
- 3/7544. Output Contest Matches 输出比赛匹配对
- 3/7547. Number of Provinces 省份数量
- 3/7548. Split Array with Equal Sum 将数组分割成和相等的子数组
- 3/755. Jump Game 跳跃游戏
- 3/7551. Student Attendance Record I 学生出勤记录 I
- 3/7553. Optimal Division 最优除法
- 3/7554. Brick Wall 砖墙
- 3/7555. Split Concatenated Strings 分割连接字符串
- 3/7556. Next Greater Element III 下一个更大元素 III
- 3/7557. Reverse Words in a String III 反转字符串中的单词 III
- 3/7558. Logical OR of Two Binary Grids Represented as Quad-Trees 四叉树交集
- 3/7559. Maximum Depth of N-ary Tree N 叉树的最大深度
- 3/756. Merge Intervals 合并区间
- 3/7560. Subarray Sum Equals K 和为 K 的子数组
- 3/7561. Array Partition 数组拆分
- 3/7563. Binary Tree Tilt 二叉树的坡度
- 3/7565. Array Nesting 数组嵌套
- 3/7566. Reshape the Matrix 重塑矩阵
- 3/7567. Permutation in String 字符串的排列
- 3/7572. Subtree of Another Tree 另一棵树的子树
- 3/7575. Distribute Candies 分糖果
- 3/7576. Out of Boundary Paths 出界的路径数
- 3/758. Length of Last Word 最后一个单词的长度
- 3/7581. Shortest Unsorted Continuous Subarray 最短无序连续子数组
- 3/7583. Delete Operation for Two Strings 两个字符串的删除操作
- 3/7589. N-ary Tree Preorder Traversal N 叉树的前序遍历
- 3/759. Spiral Matrix II 螺旋矩阵 II
- 3/7590. N-ary Tree Postorder Traversal N 叉树的后序遍历
- 3/7592. Fraction Addition and Subtraction 分数加减运算
- 3/7593. Valid Square 有效的正方形
- 3/7594. Longest Harmonious Subsequence 最长和谐子序列
- 3/7598. Range Addition II 范围求和 II
- 3/7599. Minimum Index Sum of Two Lists 两个列表的最小索引总和
- 3/76. Zigzag Conversion Z 字形变换
- 3/760. Permutation Sequence 排列序列
- 3/7604. Design Compressed String Iterator 迭代压缩字符串
- 3/7605. Can Place Flowers 种花问题
- 3/7606. Construct String from Binary Tree 根据二叉树创建字符串
- 3/7609. Find Duplicate File in System 在系统中查找重复文件
- 3/761. Rotate List 旋转链表
- 3/7611. Valid Triangle Number 有效三角形的个数
- 3/7616. Add Bold Tag in String 给字符串添加加粗标签
- 3/7617. Merge Two Binary Trees 合并二叉树
- 3/762. Unique Paths 不同路径
- 3/7621. Task Scheduler 任务调度器
- 3/7622. Design Circular Queue 设计循环队列
- 3/7623. Add One Row to Tree 在二叉树中增加一行
- 3/7624. Maximum Distance in Arrays 数组列表中的最大距离
- 3/7628. Maximum Product of Three Numbers 三个数的最大乘积
- 3/763. Unique Paths II 不同路径 II
- 3/7632. Smallest Range Covering Elements from K Lists 最小区间
- 3/7633. Sum of Square Numbers 平方数之和
- 3/7636. Exclusive Time of Functions 函数的独占时间
- 3/7637. Average of Levels in Binary Tree 二叉树的层平均值
- 3/7638. Shopping Offers 大礼包
- 3/764. Minimum Path Sum 最小路径和
- 3/7640. Solve the Equation 求解方程
- 3/7641. Design Circular Deque 设计循环双端队列
- 3/7643. Maximum Average Subarray I 子数组最大平均数 I
- 3/7645. Set Mismatch 错误的集合
- 3/7646. Maximum Length of Pair Chain 最长数对链
- 3/7647. Palindromic Substrings 回文子串
- 3/7648. Replace Words 单词替换
- 3/7649. Dota2 Senate Dota2 参议院
- 3/7650. 2 Keys Keyboard 只有两个键的键盘
- 3/7652. Find Duplicate Subtrees 寻找重复的子树
- 3/7653. Two Sum IV - Input is a BST 两数之和 IV - 输入 BST
- 3/7654. Maximum Binary Tree 最大二叉树
- 3/7655. Print Binary Tree 输出二叉树
- 3/7657. Robot Return to Origin 机器人能否返回原点
- 3/7658. Find K Closest Elements 找到 K 个最接近的元素
- 3/7659. Split Array into Consecutive Subsequences 分割数组为连续子序列
- 3/766. Plus One 加一
- 3/7661. Image Smoother 图片平滑器
- 3/7662. Maximum Width of Binary Tree 二叉树最大宽度
- 3/7663. Equal Tree Partition 均匀树划分
- 3/7665. Non-decreasing Array 非递减数列
- 3/7666. Path Sum IV 路径总和 IV
- 3/7667. Beautiful Arrangement II 优美的排列 II
- 3/7669. Trim a Binary Search Tree 修剪二叉搜索树
- 3/767. Add Binary 二进制求和
- 3/7671. Second Minimum Node In a Binary Tree 二叉树中第二小的节点
- 3/7672. Bulb Switcher II 灯泡开关 Ⅱ
- 3/7673. Number of Longest Increasing Subsequence 最长递增子序列的个数
- 3/7674. Longest Continuous Increasing Subsequence 最长连续递增序列
- 3/7676. Implement Magic Dictionary 实现一个魔法字典
- 3/7677. Map Sum Pairs 键值映射
- 3/7678. Valid Parenthesis String 有效的括号字符串
- 3/7680. Valid Palindrome II 验证回文字符串 Ⅱ
- 3/7682. Baseball Game 棒球比赛
- 3/7684. Redundant Connection 冗余连接
- 3/7686. Repeated String Match 重复叠加字符串匹配
- 3/7687. Longest Univalue Path 最长同值路径
- 3/7688. Knight Probability in Chessboard 骑士在棋盘上的概率
- 3/7689. Maximum Sum of 3 Non-Overlapping Subarrays 三个无重叠子数组的最大和
- 3/769. Sqrt(x) x 的平方根
- 3/7690. Employee Importance 员工的重要性
- 3/7692. Top K Frequent Words 前K个高频单词
- 3/7693. Binary Number with Alternating Bits 交替位二进制数
- 3/7694. Number of Distinct Islands 不同岛屿的数量
- 3/7695. Max Area of Island 岛屿的最大面积
- 3/7696. Count Binary Substrings 计数二进制子串
- 3/7697. Degree of an Array 数组的度
- 3/7698. Partition to K Equal Sum Subsets 划分为k个相等的子集
- 3/77. Reverse Integer 整数反转
- 3/770. Climbing Stairs 爬楼梯
- 3/7700. Search in a Binary Search Tree 二叉搜索树中的搜索
- 3/7701. Insert into a Binary Search Tree 二叉搜索树中的插入操作
- 3/7702. Search in a Sorted Array of Unknown Size 搜索长度未知的有序数组
- 3/7703. Kth Largest Element in a Stream 数据流中的第 K 大元素
- 3/7704. Binary Search 二分查找
- 3/7705. Design HashSet 设计哈希集合
- 3/7706. Design HashMap 设计哈希映射
- 3/7707. Design Linked List 设计链表
- 3/7709. To Lower Case 转换成小写字母
- 3/771. Simplify Path 简化路径
- 3/7712. Minimum ASCII Delete Sum for Two Strings 两个字符串的最小ASCII删除和
- 3/7713. Subarray Product Less Than K 乘积小于 K 的子数组
- 3/7714. Best Time to Buy and Sell Stock with Transaction Fee 买卖股票的最佳时机含手续费
- 3/7716. Max Stack 最大栈
- 3/7717. 1-bit and 2-bit Characters 1 比特与 2 比特字符
- 3/7718. Maximum Length of Repeated Subarray 最长重复子数组
- 3/772. Edit Distance 编辑距离
- 3/7720. Longest Word in Dictionary 词典中最长的单词
- 3/7721. Accounts Merge 账户合并
- 3/7722. Remove Comments 删除注释
- 3/7723. Candy Crush 粉碎糖果
- 3/7724. Find Pivot Index 寻找数组的中心下标
- 3/7725. Split Linked List in Parts 分隔链表
- 3/7726. Number of Atoms 原子的数量
- 3/7728. Self Dividing Numbers 自除数
- 3/7729. My Calendar I 我的日程安排表 I
- 3/773. Set Matrix Zeroes 矩阵置零
- 3/7730. Count Different Palindromic Subsequences 统计不同回文子序列
- 3/7731. My Calendar II 我的日程安排表 II
- 3/7732. My Calendar III 我的日程安排表 III
- 3/7733. Flood Fill 图像渲染
- 3/7734. Sentence Similarity 句子相似性
- 3/7735. Asteroid Collision 行星碰撞
- 3/7738. Monotone Increasing Digits 单调递增的数字
- 3/7739. Daily Temperatures 每日温度
- 3/774. Search a 2D Matrix 搜索二维矩阵
- 3/7743. Network Delay Time 网络延迟时间
- 3/7744. Find Smallest Letter Greater Than Target 寻找比目标字母大的最小字母
- 3/7746. Min Cost Climbing Stairs 使用最小花费爬楼梯
- 3/7747. Largest Number At Least Twice of Others 至少是其他数字两倍的最大数
- 3/7748. Shortest Completing Word 最短补全词
- 3/775. Sort Colors 颜色分类
- 3/7750. Number Of Corner Rectangles 角矩形的数量
- 3/7752. Open the Lock 打开转盘锁
- 3/7753. Cracking the Safe 破解保险箱
- 3/7754. Reach a Number 到达终点数字
- 3/7756. Pyramid Transition Matrix 金字塔转换矩阵
- 3/7758. Bold Words in String 字符串中的加粗单词
- 3/776. Minimum Window Substring 最小覆盖子串
- 3/7760. Find Anagram Mappings 找出变位映射
- 3/7761. Special Binary String 特殊的二进制序列
- 3/7762. Prime Number of Set Bits in Binary Representation 二进制表示中质数个计算置位
- 3/7763. Partition Labels 划分字母区间
- 3/7764. Largest Plus Sign 最大加号标志
- 3/7765. Couples Holding Hands 情侣牵手
- 3/7766. Toeplitz Matrix 托普利茨矩阵
- 3/7767. Reorganize String 重构字符串
- 3/7768. Max Chunks To Make Sorted II 最多能完成排序的块 II
- 3/7769. Max Chunks To Make Sorted 最多能完成排序的块
- 3/777. Combinations 组合
- 3/7771. Jewels and Stones 宝石与石头
- 3/7773. Sliding Puzzle 滑动谜题
- 3/7775. Global and Local Inversions 全局倒置与局部倒置
- 3/7777. Swap Adjacent in LR String 在LR字符串中交换相邻字符
- 3/7778. Swim in Rising Water 水位上升的泳池中游泳
- 3/7779. K-th Symbol in Grammar 第K个语法符号
- 3/778. Subsets 子集
- 3/7781. Rabbits in Forest 森林中的兔子
- 3/7783. Minimum Distance Between BST Nodes 二叉搜索树节点最小距离
- 3/7784. Letter Case Permutation 字母大小写全排列
- 3/7785. Is Graph Bipartite? 判断二分图
- 3/7787. Cheapest Flights Within K Stops K 站中转内最便宜的航班
- 3/7788. Rotated Digits 旋转数字
- 3/7789. Escape The Ghosts 逃脱阻碍者
- 3/779. Word Search 单词搜索
- 3/7790. Domino and Tromino Tiling 多米诺和托米诺平铺
- 3/7791. Custom Sort String 自定义字符串排序
- 3/7792. Number of Matching Subsequences 匹配子序列的单词数
- 3/7794. Valid Tic-Tac-Toe State 有效的井字游戏
- 3/7795. Number of Subarrays with Bounded Maximum 区间子数组个数
- 3/7796. Rotate String 旋转字符串
- 3/7797. All Paths From Source to Target 所有可能的路径
- 3/7799. Champagne Tower 香槟塔
- 3/78. String to Integer (atoi) 字符串转换整数 (atoi)
- 3/780. Remove Duplicates from Sorted Array II 删除有序数组中的重复项 II
- 3/7800. Similar RGB Color 相似 RGB 颜色
- 3/7801. Minimum Swaps To Make Sequences Increasing 使序列递增的最小交换次数
- 3/7802. Find Eventual Safe States 找到最终的安全状态
- 3/7804. Unique Morse Code Words 唯一摩尔斯密码词
- 3/7806. Number of Lines To Write String 写字符串需要的行数
- 3/7807. Max Increase to Keep City Skyline 保持城市天际线
- 3/7808. Soup Servings 分汤
- 3/7809. Expressive Words 情感丰富的文字
- 3/781. Search in Rotated Sorted Array II 搜索旋转排序数组 II
- 3/7811. Subdomain Visit Count 子域名访问计数
- 3/7812. Largest Triangle Area 最大三角形面积
- 3/7813. Largest Sum of Averages 最大平均值和的分组
- 3/7814. Binary Tree Pruning 二叉树剪枝
- 3/7816. Ambiguous Coordinates 模糊坐标
- 3/7817. Linked List Components 链表组件
- 3/7819. Most Common Word 最常见的单词
- 3/782. Remove Duplicates from Sorted List II 删除排序链表中的重复元素 II
- 3/7820. Short Encoding of Words 单词的压缩编码
- 3/7821. Shortest Distance to a Character 字符的最短距离
- 3/7822. Card Flipping Game 翻转卡片游戏
- 3/7823. Binary Trees With Factors 带因子的二叉树
- 3/7824. Goat Latin 山羊拉丁文
- 3/7825. Friends Of Appropriate Ages 适龄的朋友
- 3/7826. Most Profit Assigning Work 安排工作以达到最大收益
- 3/7829. Consecutive Numbers Sum 连续整数求和
- 3/783. Remove Duplicates from Sorted List 删除排序链表中的重复元素
- 3/7830. Positions of Large Groups 较大分组的位置
- 3/7831. Masking Personal Information 隐藏个人信息
- 3/7832. Flipping an Image 翻转图像
- 3/7833. Find And Replace in String 字符串中的查找与替换
- 3/7835. Image Overlap 图像重叠
- 3/7836. Rectangle Overlap 矩形重叠
- 3/7837. New 21 Game 新 21 点
- 3/7838. Push Dominoes 推多米诺
- 3/7839. Similar String Groups 相似字符串组
- 3/784. Largest Rectangle in Histogram 柱状图中最大的矩形
- 3/7840. Magic Squares In Grid 矩阵中的幻方
- 3/7841. Keys and Rooms 钥匙和房间
- 3/7842. Split Array into Fibonacci Sequence 将数组拆分成斐波那契序列
- 3/7844. Backspace String Compare 比较含退格的字符串
- 3/7845. Longest Mountain in Array 数组中的最长山脉
- 3/7846. Hand of Straights 一手顺子
- 3/7847. Shortest Path Visiting All Nodes 访问所有节点的最短路径
- 3/7848. Shifting Letters 字母移位
- 3/7849. Maximize Distance to Closest Person 到最近的人的最大距离
- 3/785. Maximal Rectangle 最大矩形
- 3/7851. Loud and Rich 喧闹和富有
- 3/7852. Peak Index in a Mountain Array 山脉数组的峰顶索引
- 3/7853. Car Fleet 车队
- 3/7855. Exam Room 考场就座
- 3/7856. Score of Parentheses 括号的分数
- 3/7857. Minimum Cost to Hire K Workers 雇佣 K 名工人的最低成本
- 3/7858. Mirror Reflection 镜面反射
- 3/7859. Buddy Strings 亲密字符串
- 3/786. Partition List 分隔链表
- 3/7860. Lemonade Change 柠檬水找零
- 3/7861. Score After Flipping Matrix 翻转矩阵后的得分
- 3/7862. Shortest Subarray with Sum at Least K 和至少为 K 的最短子数组
- 3/7863. All Nodes Distance K in Binary Tree 二叉树中所有距离为 K 的结点
- 3/7865. Smallest Subtree with all the Deepest Nodes 具有所有最深节点的最小子树
- 3/7867. Transpose Matrix 转置矩阵
- 3/7868. Binary Gap 二进制间距
- 3/7869. Reordered Power of 2 重新排序得到 2 的幂
- 3/787. Scramble String 扰乱字符串
- 3/7870. Advantage Shuffle 优势洗牌
- 3/7871. Minimum Number of Refueling Stops 最低加油次数
- 3/7872. Leaf-Similar Trees 叶子相似的树
- 3/7873. Length of Longest Fibonacci Subsequence 最长的斐波那契子序列的长度
- 3/7874. Walking Robot Simulation 模拟行走机器人
- 3/7875. Koko Eating Bananas 爱吃香蕉的珂珂
- 3/7876. Middle of the Linked List 链表的中间结点
- 3/7877. Stone Game 石子游戏
- 3/788. Merge Sorted Array 合并两个有序数组
- 3/7880. Decoded String at Index 索引处的解码字符串
- 3/7881. Boats to Save People 救生艇
- 3/7883. Projection Area of 3D Shapes 三维形体投影面积
- 3/7884. Uncommon Words from Two Sentences 两句话中的不常见单词
- 3/7885. Spiral Matrix III 螺旋矩阵 III
- 3/7886. Possible Bipartition 可能的二分法
- 3/7887. Super Egg Drop 鸡蛋掉落
- 3/7888. Fair Candy Swap 公平的糖果交换
- 3/7889. Construct Binary Tree from Preorder and Postorder Traversal 根据前序和后序遍历构造二叉树
- 3/789. Gray Code 格雷编码
- 3/7890. Find and Replace Pattern 查找和替换模式
- 3/7892. Surface Area of 3D Shapes 三维形体的表面积
- 3/7893. Groups of Special-Equivalent Strings 特殊等价字符串组
- 3/7894. All Possible Full Binary Trees 所有可能的真二叉树
- 3/7895. Maximum Frequency Stack 最大频率栈
- 3/7896. Monotonic Array 单调数列
- 3/7897. Increasing Order Search Tree 递增顺序搜索树
- 3/7898. Bitwise ORs of Subarrays 子数组按位或操作
- 3/7899. Orderly Queue 有序队列
- 3/79. Palindrome Number 回文数
- 3/790. Subsets II 子集 II
- 3/7900. RLE Iterator RLE 迭代器
- 3/7901. Online Stock Span 股票价格跨度
- 3/7904. Fruit Into Baskets 水果成篮
- 3/7905. Sort Array By Parity 按奇偶排序数组
- 3/7906. Super Palindromes 超级回文数
- 3/7908. Smallest Range I 最小差值 I
- 3/791. Decode Ways 解码方法
- 3/7910. Smallest Range II 最小差值 II
- 3/7911. Online Election 在线选举
- 3/7912. Sort an Array 排序数组
- 3/7913. Cat and Mouse 猫和老鼠
- 3/7914. X of a Kind in a Deck of Cards 卡牌分组
- 3/7915. Partition Array into Disjoint Intervals 分割数组
- 3/7916. Word Subsets 单词子集
- 3/7917. Reverse Only Letters 仅仅反转字母
- 3/7919. Complete Binary Tree Inserter 完全二叉树插入器
- 3/792. Reverse Linked List II 反转链表 II
- 3/7921. Minimum Add to Make Parentheses Valid 使括号有效的最少添加
- 3/7922. Sort Array By Parity II 按奇偶排序数组 II
- 3/7923. 3Sum With Multiplicity 三数之和的多种可能
- 3/7925. Long Pressed Name 长按键入
- 3/7926. Flip String to Monotone Increasing 将字符串翻转到单调递增
- 3/7929. Unique Email Addresses 独特的电子邮件地址
- 3/793. Restore IP Addresses 复原 IP 地址
- 3/7930. Binary Subarrays With Sum 和相同的二元子数组
- 3/7931. Minimum Falling Path Sum 下降路径最小和
- 3/7932. Beautiful Array 漂亮数组
- 3/7933. Number of Recent Calls 最近的请求次数
- 3/7934. Shortest Bridge 最短的桥
- 3/7935. Knight Dialer 骑士拨号器
- 3/7937. Reorder Data in Log Files 重新排列日志文件
- 3/7938. Range Sum of BST 二叉搜索树的范围和
- 3/7939. Minimum Area Rectangle 最小面积矩形
- 3/794. Binary Tree Inorder Traversal 二叉树的中序遍历
- 3/7940. Distinct Subsequences II 不同的子序列 II
- 3/7941. Valid Mountain Array 有效的山脉数组
- 3/7942. DI String Match 增减字符串匹配
- 3/7944. Delete Columns to Make Sorted 删列造序
- 3/7945. Minimum Increment to Make Array Unique 使数组唯一的最小增量
- 3/7946. Validate Stack Sequences 验证栈序列
- 3/7947. Most Stones Removed with Same Row or Column 移除最多的同行或同列石头
- 3/7948. Bag of Tokens 令牌放置
- 3/7949. Largest Time for Given Digits 给定数字能组成的最大时间
- 3/795. Unique Binary Search Trees II 不同的二叉搜索树 II
- 3/7950. Reveal Cards In Increasing Order 按递增顺序显示卡牌
- 3/7951. Flip Equivalent Binary Trees 翻转等价二叉树
- 3/7952. Largest Component Size by Common Factor 按公因数计算最大组件大小
- 3/7953. Verifying an Alien Dictionary 验证外星语词典
- 3/7954. Array of Doubled Pairs 二倍数对数组
- 3/7957. Prison Cells After N Days N 天后的牢房
- 3/7958. Check Completeness of a Binary Tree 二叉树的完全性检验
- 3/7959. Regions Cut By Slashes 由斜杠划分区域
- 3/796. Unique Binary Search Trees 不同的二叉搜索树
- 3/7961. N-Repeated Element in Size 2N Array 在长度 2N 的数组中找出重复 N 次的元素
- 3/7962. Maximum Width Ramp 最大宽度坡
- 3/7963. Minimum Area Rectangle II 最小面积矩形 II
- 3/7965. Univalued Binary Tree 单值二叉树
- 3/7966. Vowel Spellchecker 元音拼写检查器
- 3/7967. Numbers With Same Consecutive Differences 连续差相同的数字
- 3/7968. Binary Tree Cameras 监控二叉树
- 3/7969. Pancake Sorting 煎饼排序
- 3/7970. Powerful Integers 强整数
- 3/7971. Flip Binary Tree To Match Preorder Traversal 翻转二叉树以匹配先序遍历
- 3/7973. K Closest Points to Origin 最接近原点的 K 个点
- 3/7974. Subarray Sums Divisible by K 和可被 K 整除的子数组
- 3/7975. Odd Even Jump 奇偶跳
- 3/7976. Largest Perimeter Triangle 三角形的最大周长
- 3/7977. Squares of a Sorted Array 有序数组的平方
- 3/7978. Longest Turbulent Subarray 最长湍流子数组
- 3/7979. Distribute Coins in Binary Tree 在二叉树中分配硬币
- 3/798. Validate Binary Search Tree 验证二叉搜索树
- 3/7980. Unique Paths III 不同路径 III
- 3/7981. Time Based Key-Value Store 基于时间的键值存储
- 3/7982. Triples with Bitwise AND Equal To Zero 按位与为零的三元组
- 3/7983. Minimum Cost For Tickets 最低票价
- 3/7984. String Without AAA or BBB 不含 AAA 或 BBB 的字符串
- 3/7985. Sum of Even Numbers After Queries 查询后的偶数和
- 3/7986. Interval List Intersections 区间列表的交集
- 3/7987. Vertical Order Traversal of a Binary Tree 二叉树的垂序遍历
- 3/7988. Smallest String Starting From Leaf 从叶结点开始的最小字符串
- 3/7989. Add to Array-Form of Integer 数组形式的整数加法
- 3/799. Recover Binary Search Tree 恢复二叉搜索树
- 3/7990. Satisfiability of Equality Equations 等式方程的可满足性
- 3/7991. Broken Calculator 坏了的计算器
- 3/7993. Cousins in Binary Tree 二叉树的堂兄弟节点
- 3/7994. Rotting Oranges 腐烂的橘子
- 3/7996. Number of Squareful Arrays 正方形数组的数目
- 3/7997. Find the Town Judge 找到小镇的法官
- 3/7998. Maximum Binary Tree II 最大二叉树 II
- 3/7999. Available Captures for Rook 可以被一步捕获的棋子数