Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2326 | My Calendar III | Hard | Binary SearchDesignSegment Tree |
| 2327 | N-ary Tree Level Order Traversal | Medium | TreeBreadth-First Search |
| 2328 | N-ary Tree Postorder Traversal | Easy | StackTreeDepth-First Search |
| 2329 | N-ary Tree Preorder Traversal | Easy | StackTreeDepth-First Search |
| 2330 | N-Queens | Hard | ArrayBacktracking |
| 2331 | N-Queens II | Hard | Backtracking |
| 2332 | N-Repeated Element in Size 2N Array | Easy | ArrayHash Table |
| 2333 | N-th Tribonacci Number | Easy | MathDynamic ProgrammingMemoization |
| 2334 | Naming a Company | Hard | ArrayHash TableString |
| 2335 | Neighboring Bitwise XOR | Medium | ArrayBit Manipulation |
| 2336 | Neither Minimum nor Maximum | Easy | ArraySorting |
| 2337 | Nested Array Generator | Medium | JavaScript |
| 2338 | Nested List Weight Sum | Medium | Depth-First SearchBreadth-First Search |
| 2339 | Nested List Weight Sum II | Medium | StackDepth-First SearchBreadth-First Search |
| 2340 | Network Delay Time | Medium | Depth-First SearchBreadth-First SearchGraph |
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