654. 最大二叉树
Medium | Array, Divide and Conquer, Stack, Tree, Monotonic Stack, Binary Tree
Monotonic Stack
321. 创建最大数
Hard | Array, Two Pointers, Stack, Greedy, Monotonic Stack
402. 移除K位数字
Medium | String, Stack, Greedy, Monotonic Stack
456. 132 模式
Medium | Array, Binary Search, Stack, Monotonic Stack, Ordered Set
316. 去除重复字母
Medium | String, Stack, Greedy, Monotonic Stack
42. 接雨水
Hard | Array, Two Pointers, Dynamic Programming, Stack, Monotonic Stack
84. 柱状图中最大的矩形
Hard | Array, Stack, Monotonic Stack
85. 最大矩形
Hard | Array, Dynamic Programming, Stack, Matrix, Monotonic Stack