Practice problems across 75+ categories
Practice problems frequently asked at Depth-First Search • 0 problems | 0 Easy | 0 Medium | 0 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1 | Add One Row to Tree | Medium | TreeDepth-First SearchBreadth-First Search |
| 2 | Alien Dictionary | Hard | ArrayStringDepth-First Search |
| 3 | All Ancestors of a Node in a Directed Acyclic Graph | Medium | Depth-First SearchBreadth-First SearchGraph |
| 4 | All Elements in Two Binary Search Trees | Medium | TreeDepth-First SearchBinary Search Tree |
| 5 | All Nodes Distance K in Binary Tree | Medium | Hash TableTreeDepth-First Search |
| 6 | All Paths From Source to Target | Medium | BacktrackingDepth-First SearchBreadth-First Search |
| 7 | Amount of Time for Binary Tree to Be Infected | Medium | Hash TableTreeDepth-First Search |
| 8 | Apply Substitutions | Medium | ArrayHash TableString |
| 9 | Array Nesting | Medium | ArrayDepth-First Search |
| 10 | Average of Levels in Binary Tree | Easy | TreeDepth-First SearchBreadth-First Search |
| 11 | Balance a Binary Search Tree | Medium | Divide and ConquerGreedyTree |
| 12 | Balanced Binary Tree | Easy | TreeDepth-First SearchBinary Tree |
| 13 | Battleships in a Board | Medium | ArrayDepth-First SearchMatrix |
| 14 | Binary Search Tree to Greater Sum Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 15 | Binary Tree Cameras | Hard | Dynamic ProgrammingTreeDepth-First Search |
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