Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 451 | Construct the Longest New String | Medium | MathDynamic ProgrammingGreedy |
| 452 | Construct the Minimum Bitwise Array I | Easy | ArrayBit Manipulation |
| 453 | Construct the Minimum Bitwise Array II | Medium | ArrayBit Manipulation |
| 454 | Construct the Rectangle | Easy | Math |
| 455 | Constructing Two Increasing Arrays | Hard | ArrayDynamic Programming |
| 456 | Contain Virus | Hard | ArrayDepth-First SearchBreadth-First Search |
| 457 | Container With Most Water | Medium | ArrayTwo PointersGreedy |
| 458 | Contains Duplicate | Easy | ArrayHash TableSorting |
| 459 | Contains Duplicate II | Easy | ArrayHash TableSliding Window |
| 460 | Contains Duplicate III | Hard | ArraySliding WindowSorting |
| 461 | Contiguous Array | Medium | ArrayHash TablePrefix Sum |
| 462 | Continuous Subarray Sum | Medium | ArrayHash TableMath |
| 463 | Continuous Subarrays | Medium | ArrayQueueSliding Window |
| 464 | Convert 1D Array Into 2D Array | Easy | ArrayMatrixSimulation |
| 465 | Convert a Number to Hexadecimal | Easy | MathStringBit Manipulation |
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