Design & Implement

Implement

• 232. 用栈实现队列

• 225. 用队列实现栈

• 707. Design Linked List

• 622. Design Circular Queue

• 641. Design Circular Deque

• 705. 设计哈希集合

• 706. 设计哈希映射

• 535. Encode and Decode TinyURL

• 146. LRU 缓存

• 460. LFU Cache

• [432. All O`one Data Structure](https://leetcode.cn/problems/all-oone-data-structure/)

• 面试题 03.05. Sort of Stacks LCCI

Design

• 933. 最近的请求次数

• 346. 数据流中的移动平均值

• 295. 数据流的中位数

• 173. 二叉搜索树迭代器

• 303. 区域和检索 - 数组不可变

• 307. 区域和检索 - 数组可修改

• 155. 最小栈

• 716. Max Stack

• 297. 二叉树的序列化与反序列化

• 380. O(1) 时间插入、删除和获取随机元素

• 381. Insert Delete GetRandom O(1) - Duplicates allowed

• 676. 实现一个魔法字典

• 1756. Design Most Recently Used Queue

• 1429. First Unique Number

• 1500. Design a File Sharing System

• 341. Flatten Nested List Iterator

• 1206. Design Skiplist

• 355. Design Twitter

• 981. Time Based Key-Value Store

• 面试题 10.10. Rank from Stream LCCI

• 2080. Range Frequency Queries

• 1381. Design a Stack With Increment Operation

Trie Tree

• 208. 实现 Trie (前缀树)
• 820. 单词的压缩编码
• 677. 键值映射
• 648. 单词替换
• 211. Design Add and Search Words Data Structure
• 1858. 包含所有前缀的最长单词

• 212. 单词搜索 II

• 642. Design Search Autocomplete System

• 1032. Stream of Characters

• 745. Prefix and Suffix Search

• 472. Concatenated Words

• 面试题 17.15. Longest Word LCCI

• 面试题 16.20. T9 LCCI

Calender

• 729. My Calendar I

• 731. My Calendar II

• 732. My Calendar III

Serialization

• 297. Serialize and Deserialize Binary Tree

• 449. Serialize and Deserialize BST