Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2491 | Shortest Impossible Sequence of Rolls | Hard | ArrayHash TableGreedy |
| 2492 | Shortest Matching Substring | Hard | Two PointersStringBinary Search |
| 2493 | Shortest Palindrome | Hard | StringRolling HashString Matching |
| 2494 | Shortest Path in a Grid with Obstacles Elimination | Hard | ArrayBreadth-First SearchMatrix |
| 2495 | Shortest Path in a Hidden Grid | Medium | ArrayDepth-First SearchBreadth-First Search |
| 2496 | Shortest Path in Binary Matrix | Medium | ArrayBreadth-First SearchMatrix |
| 2497 | Shortest Path to Get All Keys | Hard | ArrayBit ManipulationBreadth-First Search |
| 2498 | Shortest Path to Get Food | Medium | ArrayBreadth-First SearchMatrix |
| 2499 | Shortest Path Visiting All Nodes | Hard | Dynamic ProgrammingBit ManipulationBreadth-First Search |
| 2500 | Shortest Path with Alternating Colors | Medium | Breadth-First SearchGraph |
| 2501 | Shortest String That Contains Three Strings | Medium | StringGreedyEnumeration |
| 2502 | Shortest Subarray With OR at Least K I | Easy | ArrayBit ManipulationSliding Window |
| 2503 | Shortest Subarray With OR at Least K II | Medium | ArrayBit ManipulationSliding Window |
| 2504 | Shortest Subarray with Sum at Least K | Hard | ArrayBinary SearchQueue |
| 2505 | Shortest Uncommon Substring in an Array | Medium | ArrayHash TableString |
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