1631. 最小体力消耗路径
Medium | Array, Binary Search, Depth-First Search, Breadth-First Search, Union-Find, Heap (Priority Queue), Matrix
Union-Find
2092. 寻找拥有秘密的所有人
Hard | Depth-First Search, Breadth-First Search, Union-Find, Graph Theory, Sorting
1267. 统计参与通信的服务器
Medium | Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix, Counting
1489. 找到最小生成树里的关键边和伪关键边
Hard | Union-Find, Graph Theory, Sorting, Minimum Spanning Tree, Strongly Connected Component
1559. 检测二维网格中的环
Medium | Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix
1579. 保持图可完全遍历的最多删除边数
Hard | Union-Find, Graph Theory
547. 省份数量
Medium | Depth-First Search, Breadth-First Search, Union-Find, Graph Theory
695. 岛屿的最大面积
Medium | Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix
785. 判断二分图
Medium | Depth-First Search, Breadth-First Search, Union-Find, Graph Theory
827. 最大人工岛
Hard | Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix