Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 241 | Card Flipping Game | Medium | ArrayHash Table |
| 242 | Cat and Mouse | Hard | MathDynamic ProgrammingGraph |
| 243 | Cat and Mouse II | Hard | ArrayMathDynamic Programming |
| 244 | Categorize Box According to Criteria | Easy | Math |
| 245 | Cells in a Range on an Excel Sheet | Easy | String |
| 246 | Cells with Odd Values in a Matrix | Easy | ArrayMathSimulation |
| 247 | CEO Subordinate Hierarchy | Hard | Database |
| 248 | Chalkboard XOR Game | Hard | ArrayMathBit Manipulation |
| 249 | Champagne Tower | Medium | Dynamic Programming |
| 250 | Change Minimum Characters to Satisfy One of Three Conditions | Medium | Hash TableStringCounting |
| 251 | Change Null Values in a Table to the Previous Value | Unknown | Database |
| 252 | Change the Root of a Binary Tree | Medium | TreeDepth-First SearchBinary Tree |
| 253 | Check Array Formation Through Concatenation | Easy | ArrayHash Table |
| 254 | Check Balanced String | Easy | String |
| 255 | Check Completeness of a Binary Tree | Medium | TreeBreadth-First SearchBinary Tree |
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