Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 406 | Diagonal Traverse | Medium | ArrayMatrixSimulation |
| 407 | Diagonal Traverse II | Medium | ArraySortingHeap (Priority Queue) |
| 408 | Dice Roll Simulation | Hard | ArrayDynamic Programming |
| 409 | Diet Plan Performance | Easy | ArraySliding Window |
| 410 | Difference Between Element Sum and Digit Sum of an Array | Easy | ArrayMath |
| 411 | Difference Between Maximum and Minimum Price Sum | Hard | ArrayDynamic ProgrammingTree |
| 412 | Difference Between Ones and Zeros in Row and Column | Medium | ArrayMatrixSimulation |
| 413 | Difference of Number of Distinct Values on Diagonals | Medium | ArrayHash TableMatrix |
| 414 | Digit Frequency Histogram | Easy | LoopsLoopArray |
| 415 | Disconnect Path in a Binary Matrix by at Most One Flip | Medium | ArrayDynamic ProgrammingDepth-First Search |
| 416 | Display Table of Food Orders in a Restaurant | Medium | ArrayHash TableString |
| 417 | Distance Between Bus Stops | Easy | Array |
| 418 | Distant Barcodes | Medium | ArrayHash TableGreedy |
| 419 | Distinct Numbers in Each Subarray | Medium | ArrayHash TableSliding Window |
| 420 | Distinct Prime Factors of Product of Array | Medium | ArrayHash TableMath |
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