| 0990 | Satisfiability of Equality Equations LeetCode XXXX Union-Find, Graph, Array, String | Medium | | |
| 0547 | Number of Provinces LeetCode XXXX DFS, BFS, Union-Find, Graph | Medium | | |
| 0684 | Redundant Connection LeetCode XXXX DFS, BFS, Union-Find, Graph | Medium | | |
| 1319 | Number of Operations to Make Network Connected LeetCode XXXX DFS, BFS, Union-Find, Graph | Medium | | |
| 0765 | Couples Holding Hands LeetCode XXXX Greedy, DFS, BFS, Union-Find, Graph | Hard | | |
| 0399 | Evaluate Division LeetCode XXXX DFS, BFS, Union-Find, Graph, Array, Shortest Path | Medium | | |
| 0959 | Regions Cut By Slashes LeetCode XXXX DFS, BFS, Union-Find, Graph | Medium | | |
| 1631 | Path With Minimum Effort LeetCode XXXX DFS, BFS, Union-Find, Array, Binary Search, Matrix, Heap (Priority Queue) | Medium | | |
| 0778 | Swim in Rising Water LeetCode XXXX DFS, BFS, Union-Find, Array, Binary Search, Matrix, Heap (Priority Queue) | Hard | | |
| 1202 | Smallest String With Swaps LeetCode XXXX DFS, BFS, Union-Find, Hash Table, String | Medium | | |
| 0947 | Most Stones Removed with Same Row or Column LeetCode XXXX DFS, Union-Find, Graph | Medium | | |
| 0803 | Bricks Falling When Hit LeetCode XXXX Union-Find, Array, Matrix | Hard | | |
| 0128 | Longest Consecutive Sequence LeetCode XXXX Union-Find, Array, Hash Table | Medium | | |