Practice problems across 75+ categories
Practice problems frequently asked at Graph • 169 problems | 3 Easy | 79 Medium | 85 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 121 | Network Cable Cost | Medium | GraphMSTKruskal |
| 122 | Network Delay Time | Medium | Depth-First SearchBreadth-First SearchGraph |
| 123 | Node With Highest Edge Score | Medium | Hash TableGraph |
| 124 | Number of Connected Components in an Undirected Graph | Medium | Depth-First SearchBreadth-First SearchUnion Find |
| 125 | Number of Good Paths | Hard | ArrayHash TableTree |
| 126 | Number of Increasing Paths in a Grid | Hard | ArrayDynamic ProgrammingDepth-First Search |
| 127 | Number of Operations to Make Network Connected | Medium | Depth-First SearchBreadth-First SearchUnion Find |
| 128 | Number of Possible Sets of Closing Branches | Hard | Bit ManipulationGraphHeap (Priority Queue) |
| 129 | Number of Provinces | Unknown | Depth-First SearchBreadth-First SearchUnion Find |
| 130 | Number of Restricted Paths From First to Last Node | Medium | Dynamic ProgrammingGraphTopological Sort |
| 131 | Number of Ways to Arrive at Destination | Medium | Dynamic ProgrammingGraphTopological Sort |
| 132 | Number Of Ways To Reconstruct A Tree | Hard | TreeGraph |
| 133 | Optimize Water Distribution in a Village | Hard | Union FindGraphHeap (Priority Queue) |
| 134 | Parallel Courses | Medium | GraphTopological Sort |
| 135 | Parallel Courses II | Hard | Dynamic ProgrammingBit ManipulationGraph |
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