Practice problems across 75+ categories
Practice problems frequently asked at String • 803 problems | 228 Easy | 390 Medium | 177 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 706 | Split Strings by Separator | Easy | ArrayString |
| 707 | Split Two Strings to Make Palindrome | Medium | Two PointersString |
| 708 | Splitting a String Into Descending Consecutive Values | Medium | StringBacktrackingEnumeration |
| 709 | Stamping The Sequence | Hard | StringStackGreedy |
| 710 | Step-By-Step Directions From a Binary Tree Node to Another | Medium | StringTreeDepth-First Search |
| 711 | Stickers to Spell Word | Hard | ArrayHash TableString |
| 712 | Strange Printer | Hard | StringDynamic Programming |
| 713 | Stream of Characters | Hard | ArrayStringDesign |
| 714 | String Compression | Medium | Two PointersString |
| 715 | String Compression II | Hard | StringDynamic Programming |
| 716 | String Compression III | Medium | String |
| 717 | String Matching in an Array | Easy | ArrayStringString Matching |
| 718 | String to Integer (atoi) | Medium | String |
| 719 | String Transformation | Hard | MathStringDynamic Programming |
| 720 | String Transforms Into Another String | Hard | Hash TableStringGraph |
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