Practice problems across 75+ categories
Practice problems frequently asked at String • 803 problems | 228 Easy | 390 Medium | 177 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 736 | Sort Vowels in a String | Medium | StringSorting |
| 737 | Sorting the Sentence | Easy | StringSorting |
| 738 | Special Binary String | Hard | StringRecursion |
| 739 | Spell Checker | Medium | Advanced StringsStringDistance |
| 740 | Split a String in Balanced Strings | Easy | StringGreedyCounting |
| 741 | Split a String Into the Max Number of Unique Substrings | Medium | Hash TableStringBacktracking |
| 742 | Split Array into Fibonacci Sequence | Medium | StringBacktracking |
| 743 | Split Concatenated Strings | Medium | ArrayStringGreedy |
| 744 | Split Message Based on Limit | Hard | StringBinary SearchEnumeration |
| 745 | Split Strings by Separator | Easy | ArrayString |
| 746 | Split Two Strings to Make Palindrome | Medium | Two PointersString |
| 747 | Splitting a String Into Descending Consecutive Values | Medium | StringBacktrackingEnumeration |
| 748 | Stamping The Sequence | Hard | StringStackGreedy |
| 749 | Step-By-Step Directions From a Binary Tree Node to Another | Medium | StringTreeDepth-First Search |
| 750 | Stickers to Spell Word | Hard | ArrayHash TableString |
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