Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 751 | Design Spreadsheet | Medium | ArrayHash TableString |
| 752 | Design SQL | Medium | ArrayHash TableString |
| 753 | Design Task Manager | Medium | Hash TableDesignHeap (Priority Queue) |
| 754 | Design Tic-Tac-Toe | Medium | ArrayHash TableDesign |
| 755 | Design Twitter | Medium | Hash TableLinked ListDesign |
| 756 | Design Underground System | Medium | Hash TableStringDesign |
| 757 | Destination City | Easy | ArrayHash TableString |
| 758 | Destroy Sequential Targets | Medium | ArrayHash TableCounting |
| 759 | Destroying Asteroids | Medium | ArrayGreedySorting |
| 760 | Detect Capital | Easy | String |
| 761 | Detect Pattern of Length M Repeated K or More Times | Easy | ArrayEnumeration |
| 762 | Detect Squares | Medium | ArrayHash TableDesign |
| 763 | Determine Color of a Chessboard Square | Easy | MathString |
| 764 | Determine if a Cell Is Reachable at a Given Time | Medium | Math |
| 765 | Determine if String Halves Are Alike | Easy | StringCounting |
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