Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 736 | Design Front Middle Back Queue | Medium | ArrayLinked ListDesign |
| 737 | Design Graph With Shortest Path Calculator | Hard | GraphDesignHeap (Priority Queue) |
| 738 | Design HashMap | Easy | ArrayHash TableLinked List |
| 739 | Design HashSet | Easy | ArrayHash TableLinked List |
| 740 | Design Hit Counter | Medium | ArrayBinary SearchDesign |
| 741 | Design Linked List | Medium | Linked ListDesign |
| 742 | Design Log Storage System | Medium | Hash TableStringDesign |
| 743 | Design Memory Allocator | Medium | ArrayHash TableDesign |
| 744 | Design Most Recently Used Queue | Medium | ArrayLinked ListDivide and Conquer |
| 745 | Design Neighbor Sum Service | Easy | ArrayHash TableDesign |
| 746 | Design Parking System | Easy | DesignSimulationCounting |
| 747 | Design Phone Directory | Medium | ArrayHash TableLinked List |
| 748 | Design Search Autocomplete System | Hard | StringDepth-First SearchDesign |
| 749 | Design Skiplist | Hard | Linked ListDesign |
| 750 | Design Snake Game | Medium | ArrayHash TableDesign |
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