Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3286 | Valid Word Square | Easy | ArrayMatrix |
| 3287 | Validate Binary Search Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 3288 | Validate Binary Tree Nodes | Medium | TreeDepth-First SearchBreadth-First Search |
| 3289 | Validate IP Address | Medium | String |
| 3290 | Validate Stack Sequences | Medium | ArrayStackSimulation |
| 3291 | Verbal Arithmetic Puzzle | Hard | ArrayMathString |
| 3292 | Verify Preorder Sequence in Binary Search Tree | Medium | ArrayStackTree |
| 3293 | Verify Preorder Serialization of a Binary Tree | Medium | StringStackTree |
| 3294 | Verifying an Alien Dictionary | Easy | ArrayHash TableString |
| 3295 | Video Stitching | Medium | ArrayDynamic ProgrammingGreedy |
| 3296 | Visit Array Positions to Maximize Score | Medium | ArrayDynamic Programming |
| 3297 | Vowel Spellchecker | Medium | ArrayHash TableString |
| 3298 | Vowels Game in a String | Medium | MathStringBrainteaser |
| 3299 | Vowels of All Substrings | Medium | MathStringDynamic Programming |
| 3300 | Walking Robot Simulation | Medium | ArrayHash TableSimulation |
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