Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 60 | Permutation Sequence | Hard | MathRecursion |
| 61 | Minimum Path Sum | Medium | ArrayDynamic ProgrammingMatrix |
| 61 | Rotate List | Medium | Linked ListTwo Pointers |
| 62 | Unique Paths | Medium | MathDynamic ProgrammingCombinatorics |
| 65 | Valid Number | Hard | String |
| 66 | Plus One | Easy | ArrayMath |
| 67 | Add Binary | Easy | MathStringBit Manipulation |
| 68 | Text Justification | Hard | ArrayStringSimulation |
| 69 | Sqrt(x) | Easy | MathBinary Search |
| 70 | Climbing Stairs | Easy | MathDynamic ProgrammingMemoization |
| 71 | Simplify Path | Medium | StringStack |
| 72 | Edit Distance | Medium | StringDynamic Programming |
| 73 | Set Matrix Zeroes | Medium | ArrayHash TableMatrix |
| 74 | Search a 2D Matrix | Medium | ArrayBinary SearchMatrix |
| 75 | Sort Colors | Medium | ArrayTwo PointersSorting |
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