Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 526 | Beautiful Arrangement | Medium | ArrayDynamic ProgrammingBacktracking |
| 526 | Minesweeper | Medium | ArrayDepth-First SearchBreadth-First Search |
| 527 | Word Abbreviation | Hard | ArrayStringGreedy |
| 528 | Random Pick with Weight | Medium | ArrayMathBinary Search |
| 530 | Minimum Absolute Difference in BST | Easy | TreeDepth-First SearchBreadth-First Search |
| 531 | Lonely Pixel I | Medium | ArrayHash TableMatrix |
| 532 | K-diff Pairs in an Array | Medium | ArrayHash TableTwo Pointers |
| 533 | Construct Binary Tree from String | Medium | StringStackTree |
| 533 | Lonely Pixel II | Medium | ArrayHash TableMatrix |
| 534 | Game Play Analysis III | Medium | Database |
| 535 | Encode and Decode TinyURL | Medium | Hash TableStringDesign |
| 537 | Complex Number Multiplication | Medium | MathStringSimulation |
| 538 | Convert BST to Greater Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 539 | 01 Matrix | Medium | ArrayDynamic ProgrammingBreadth-First Search |
| 539 | Minimum Time Difference | Medium | ArrayMathString |
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