Practice problems across 75+ categories
Practice problems frequently asked at Graph • 169 problems | 3 Easy | 79 Medium | 85 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 151 | Number Of Ways To Reconstruct A Tree | Hard | TreeGraph |
| 152 | Optimize Water Distribution in a Village | Hard | Union FindGraphHeap (Priority Queue) |
| 153 | Parallel Courses | Medium | GraphTopological Sort |
| 154 | Parallel Courses II | Hard | Dynamic ProgrammingBit ManipulationGraph |
| 155 | Parallel Courses III | Hard | ArrayDynamic ProgrammingGraph |
| 156 | Path Existence Queries in a Graph I | Medium | ArrayHash TableBinary Search |
| 157 | Path Existence Queries in a Graph II | Hard | ArrayTwo PointersBinary Search |
| 158 | Path with Maximum Probability | Medium | ArrayGraphHeap (Priority Queue) |
| 159 | Paths in Maze That Lead to Same Room | Medium | Graph |
| 160 | Possible Bipartition | Medium | Depth-First SearchBreadth-First SearchUnion Find |
| 161 | Process Restricted Friend Requests | Hard | Union FindGraph |
| 162 | Properties Graph | Medium | ArrayHash TableDepth-First Search |
| 163 | Rank Transform of a Matrix | Hard | ArrayUnion FindGraph |
| 164 | Reachable Nodes In Subdivided Graph | Hard | GraphHeap (Priority Queue)Shortest Path |
| 165 | Reachable Nodes With Restrictions | Medium | ArrayHash TableTree |
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