Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1 | Add Digits | Easy | MathSimulationNumber Theory |
| 2 | Analyze Subscription Conversion | Medium | Database |
| 3 | Count Primes | Medium | ArrayMathEnumeration |
| 4 | Delete Node in a Linked List | Medium | Linked List |
| 5 | Flood Fill | Easy | ArrayDepth-First SearchBreadth-First Search |
| 6 | Harshad Number | Easy | Math |
| 7 | Image Smoother | Easy | ArrayMatrix |
| 8 | Nim Game | Easy | MathBrainteaserGame Theory |
| 9 | Number of Lines To Write String | Easy | ArrayString |
| 10 | Similar RGB Color | Easy | MathStringEnumeration |
| 11 | String Compression | Medium | Two PointersString |
| 12 | Text Justification | Hard | ArrayStringSimulation |
| 13 | Change Data Type | Easy | Database |
| 14 | Create a New Column | Easy | Database |
| 15 | Display the First Three Rows | Easy | Pandas |
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