1019. 链表中的下一个更大节点
Medium | Array, Linked List, Stack, Monotonic Stack
Stack
1021. 移除最外层的括号
Easy | String, Stack
1047. 删除字符串中的所有相邻重复项
Easy | String, Stack
1081. 不同字符的最小子序列
Medium | String, Stack, Greedy, Monotonic Stack
1096. 花括号展开 II
Hard | Hash Table, String, Backtracking, Stack, Breadth-First Search, Sorting
1106. 解析布尔表达式
Hard | String, Stack, Recursion
1111. 两个有效括号字符串的最大嵌套深度
Medium | String, Stack
1124. 表现良好的最长时间段
Medium | Array, Hash Table, Stack, Monotonic Stack, Prefix Sum
1130. 叶值的最小代价生成树
Medium | Array, Dynamic Programming, Stack, Greedy, Monotonic Stack
1172. 餐盘栈
Hard | Hash Table, Stack, Design, Heap (Priority Queue)