Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 286 | Closest Nodes Queries in a Binary Search Tree | Medium | ArrayBinary SearchTree |
| 287 | Closest Prime Numbers in Range | Medium | MathNumber Theory |
| 288 | Closest Room | Hard | ArrayBinary SearchSorting |
| 289 | Closest Subsequence Sum | Hard | ArrayTwo PointersDynamic Programming |
| 290 | Coin Change | Medium | ArrayDynamic ProgrammingBreadth-First Search |
| 291 | Coin Change II | Medium | ArrayDynamic Programming |
| 292 | Coin Path | Hard | ArrayDynamic Programming |
| 293 | Collecting Chocolates | Medium | ArrayEnumeration |
| 294 | Coloring A Border | Medium | ArrayDepth-First SearchBreadth-First Search |
| 295 | Combination Sum II | Medium | ArrayBacktracking |
| 296 | Combination Sum III | Medium | ArrayBacktracking |
| 297 | Combination Sum IV | Medium | ArrayDynamic Programming |
| 298 | Combinations | Medium | Backtracking |
| 299 | Combine Two Tables | Easy | Database |
| 300 | Compact Object | Medium | JavaScript |
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