373. 查找和最小的 K 对数字
Medium | Array, Heap (Priority Queue)
Medium
375. 猜数字大小II
Medium | Math, Dynamic Programming, Game Theory
376. 摆动序列
Medium | Array, Dynamic Programming, Greedy
377. 组合总和 Ⅳ
Medium | Array, Dynamic Programming
378. 有序矩阵中第K小的元素
Medium | Array, Binary Search, Sorting, Heap (Priority Queue), Matrix
380. 常数时间插入、删除和获取随机元素
Medium | Array, Hash Table, Math, Design, Randomized
382. 链表随机节点
Medium | Linked List, Math, Reservoir Sampling, Randomized
384. 打乱数组
Medium | Array, Math, Design, Randomized
385. 迷你解析器
Medium | String, Stack, Depth-First Search
388. 最长绝对文件路径
Medium | String, Stack, Depth-First Search