Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3076 | Strange Printer II | Hard | ArrayGraphTopological Sort |
| 3077 | Stream of Characters | Hard | ArrayStringDesign |
| 3078 | Strictly Palindromic Number | Medium | MathTwo PointersBrainteaser |
| 3079 | String Compression | Medium | Two PointersString |
| 3080 | String Compression II | Hard | StringDynamic Programming |
| 3081 | String Compression III | Medium | String |
| 3082 | String Matching in an Array | Easy | ArrayStringString Matching |
| 3083 | String to Integer (atoi) | Medium | String |
| 3084 | String Transformation | Hard | MathStringDynamic Programming |
| 3085 | String Transforms Into Another String | Hard | Hash TableStringGraph |
| 3086 | String Without AAA or BBB | Medium | StringGreedy |
| 3087 | Strings Differ by One Character | Medium | Hash TableStringRolling Hash |
| 3088 | Strobogrammatic Number | Medium | Hash TableTwo PointersString |
| 3089 | Strobogrammatic Number II | Medium | ArrayStringRecursion |
| 3090 | Strobogrammatic Number III | Hard | ArrayStringRecursion |
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