2166. 设计位集
Medium | Array, Hash Table, String, Design
Design
2227. 加密和解密字符串
Hard | Array, Hash Table, String, Design, Trie
2241. 设计ATM机器
Medium | Array, Greedy, Design
2276. 区间内整数统计
Hard | Design, Segment Tree, Ordered Set
2296. 设计文本编辑器
Hard | Linked List, String, Stack, Design, Simulation, Doubly-Linked List
2336. 无限集中的最小数字
Medium | Hash Table, Design, Heap (Priority Queue), Ordered Set
2349. 设计数字容器系统
Medium | Hash Table, Design, Heap (Priority Queue), Ordered Set
2353. 设计食物评分系统
Medium | Array, Hash Table, String, Design, Heap (Priority Queue), Ordered Set
2424. 最长上传前缀
Medium | Hash Table, Binary Search, Union-Find, Design, Binary Indexed Tree, Segment Tree, Heap (Priority Queue), Ordered Set
2502. 设计内存分配器
Medium | Array, Hash Table, Design, Simulation