Practice problems across 75+ categories
Practice problems frequently asked at String • 803 problems | 228 Easy | 390 Medium | 177 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 166 | Design a Text Editor | Hard | Linked ListStringStack |
| 167 | Design a Todo List | Medium | ArrayHash TableString |
| 168 | Design Add and Search Words Data Structure | Medium | StringDepth-First SearchDesign |
| 169 | Design Bitset | Medium | ArrayHash TableString |
| 170 | Design Compressed String Iterator | Easy | ArrayStringDesign |
| 171 | Design Excel Sum Formula | Unknown | ArrayHash TableString |
| 172 | Design File System | Medium | Hash TableStringDesign |
| 173 | Design In-Memory File System | Hard | Hash TableStringDesign |
| 174 | Design Log Storage System | Medium | Hash TableStringDesign |
| 175 | Design Search Autocomplete System | Hard | StringDepth-First SearchDesign |
| 176 | Design Spreadsheet | Medium | ArrayHash TableString |
| 177 | Design SQL | Medium | ArrayHash TableString |
| 178 | Design Underground System | Medium | Hash TableStringDesign |
| 179 | Destination City | Easy | ArrayHash TableString |
| 180 | Detect Capital | Easy | String |
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