Practice problems across 75+ categories
Practice problems frequently asked at Hash Table • 719 problems | 168 Easy | 418 Medium | 127 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 166 | Design Memory Allocator | Medium | ArrayHash TableDesign |
| 167 | Design Movie Rental System | Hard | ArrayHash TableDesign |
| 168 | Design Neighbor Sum Service | Easy | ArrayHash TableDesign |
| 169 | Design Phone Directory | Medium | ArrayHash TableLinked List |
| 170 | Design Snake Game | Medium | ArrayHash TableDesign |
| 171 | Design Spreadsheet | Medium | ArrayHash TableString |
| 172 | Design SQL | Medium | ArrayHash TableString |
| 173 | Design Task Manager | Medium | Hash TableDesignHeap (Priority Queue) |
| 174 | Design Tic-Tac-Toe | Medium | ArrayHash TableDesign |
| 175 | Design Twitter | Medium | Hash TableLinked ListDesign |
| 176 | Design Underground System | Medium | Hash TableStringDesign |
| 177 | Design Video Sharing Platform | Hard | Hash TableStackDesign |
| 178 | Destination City | Easy | ArrayHash TableString |
| 179 | Destroy Sequential Targets | Medium | ArrayHash TableCounting |
| 180 | Detect Squares | Medium | ArrayHash TableDesign |
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