Practice problems across 75+ categories
Practice problems frequently asked at Hash Table • 719 problems | 168 Easy | 418 Medium | 127 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 436 | Maximum Weighted K-Edge Path | Medium | Hash TableDynamic ProgrammingGraph |
| 437 | Maximum XOR of Two Numbers in an Array | Medium | ArrayHash TableBit Manipulation |
| 438 | Meeting Rooms III | Hard | ArrayHash TableSorting |
| 439 | Merge BSTs to Create Single BST | Hard | Hash TableBinary SearchTree |
| 440 | Merge Similar Items | Easy | ArrayHash TableSorting |
| 441 | Merge Two 2D Arrays by Summing Values | Easy | ArrayHash TableTwo Pointers |
| 442 | Minimize Malware Spread | Hard | ArrayHash TableDepth-First Search |
| 443 | Minimize Malware Spread II | Hard | ArrayHash TableDepth-First Search |
| 444 | Minimize String Length | Easy | Hash TableString |
| 445 | Minimum Absolute Difference Queries | Medium | ArrayHash Table |
| 446 | Minimum Area Rectangle | Medium | ArrayHash TableMath |
| 447 | Minimum Area Rectangle II | Medium | ArrayHash TableMath |
| 448 | Minimum Array Changes to Make Differences Equal | Medium | ArrayHash TablePrefix Sum |
| 449 | Minimum Array Length After Pair Removals | Medium | ArrayHash TableTwo Pointers |
| 450 | Minimum Common Value | Easy | ArrayHash TableTwo Pointers |
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