Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2701 | Read N Characters Given read4 II - Call Multiple Times | Hard | ArraySimulationInteractive |
| 2702 | Rearrange Array Elements by Sign | Medium | ArrayTwo PointersSimulation |
| 2703 | Rearrange Array to Maximize Prefix Score | Medium | ArrayGreedySorting |
| 2704 | Rearrange Characters to Make Target String | Easy | Hash TableStringCounting |
| 2705 | Rearrange K Substrings to Form Target String | Medium | Hash TableStringSorting |
| 2706 | Rearrange Products Table | Easy | Database |
| 2707 | Rearrange Spaces Between Words | Easy | String |
| 2708 | Rearrange String k Distance Apart | Hard | Hash TableStringGreedy |
| 2709 | Rearrange Words in a Sentence | Medium | StringSorting |
| 2710 | Rearranging Fruits | Hard | ArrayHash TableGreedy |
| 2711 | Reconstruct a 2-Row Binary Matrix | Medium | ArrayGreedyMatrix |
| 2712 | Reconstruct Itinerary | Hard | Depth-First SearchGraphEulerian Circuit |
| 2713 | Reconstruct Original Digits from English | Medium | Hash TableMathString |
| 2714 | Recover Binary Search Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 2715 | Rectangle Area | Medium | MathGeometry |
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