Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3510 | Minimum Pair Removal to Sort Array II | Hard | ArrayHash TableLinked List |
| 3511 | Make a Positive Array | Medium | ArrayGreedyPrefix Sum |
| 3512 | Minimum Operations to Make Array Sum Divisible by K | Easy | ArrayMath |
| 3513 | Number of Unique XOR Triplets I | Medium | ArrayMathBit Manipulation |
| 3514 | Number of Unique XOR Triplets II | Medium | ArrayMathBit Manipulation |
| 3515 | Shortest Path in a Weighted Tree | Hard | ArrayTreeDepth-First Search |
| 3515 | Smallest Palindromic Rearrangement II | Hard | Hash TableMathString |
| 3516 | Find Closest Person | Easy | Math |
| 3517 | Smallest Palindromic Rearrangement I | Medium | StringSortingCounting Sort |
| 3519 | Count Numbers with Non-Decreasing Digits | Unknown | MathStringDynamic Programming |
| 3520 | Minimum Threshold for Inversion Pairs Count | Medium | ArrayBinary SearchBinary Indexed Tree |
| 3521 | Find Product Recommendation Pairs | Medium | Database |
| 3522 | Calculate Score After Performing Instructions | Medium | ArrayHash TableString |
| 3523 | Make Array Non-decreasing | Medium | ArrayStackGreedy |
| 3524 | Find X Value of Array I | Medium | ArrayMathDynamic Programming |
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