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Start studying →Graphs
BFS, DFS, union-find, and topological sort
0 Easy5 Medium1 Hard
All Problems
| # | Problem | Difficulty |
|---|---|---|
| 200 | Number of Islands | Medium |
| 133 | Clone Graph | Medium |
| 417 | Pacific Atlantic Water Flow | Medium |
| 207 | Course Schedule | Medium |
| 261 | Graph Valid Tree | Medium |
| 127 | Word Ladder | Hard |