Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 451 | Falling Squares | Hard | ArraySegment TreeOrdered Set |
| 452 | Faulty Sensor | Easy | ArrayTwo Pointers |
| 453 | Fill a Special Grid | Medium | ArrayDivide and ConquerMatrix |
| 454 | Filling Bookcase Shelves | Medium | ArrayDynamic Programming |
| 455 | Filter Restaurants by Vegan-Friendly, Price and Distance | Medium | ArraySorting |
| 456 | Final Array State After K Multiplication Operations I | Easy | ArrayMathHeap (Priority Queue) |
| 457 | Final Array State After K Multiplication Operations II | Hard | ArrayHeap (Priority Queue)Simulation |
| 458 | Final Prices With a Special Discount in a Shop | Easy | ArrayStackMonotonic Stack |
| 459 | Final Value of Variable After Performing Operations | Easy | ArrayStringSimulation |
| 460 | Find a Good Subset of the Matrix | Hard | ArrayHash TableBit Manipulation |
| 461 | Find a Peak Element II | Medium | ArrayBinary SearchMatrix |
| 462 | Find a Safe Walk Through a Grid | Medium | ArrayBreadth-First SearchGraph |
| 463 | Find a Value of a Mysterious Function Closest to Target | Hard | ArrayBinary SearchBit Manipulation |
| 464 | Find All Duplicates in an Array | Medium | ArrayHash TableSorting |
| 465 | Find All Good Indices | Medium | ArrayDynamic ProgrammingPrefix Sum |
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