Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1381 | Matchsticks to Square | Medium | ArrayDynamic ProgrammingBacktracking |
| 1382 | Matrix Block Sum | Medium | ArrayMatrixPrefix Sum |
| 1383 | Matrix Diagonal Sum | Easy | ArrayMatrix |
| 1384 | Matrix Similarity After Cyclic Shifts | Easy | ArrayMathMatrix |
| 1385 | Max Chunks To Make Sorted | Medium | ArrayStackGreedy |
| 1386 | Max Chunks To Make Sorted II | Hard | ArrayStackGreedy |
| 1387 | Max Consecutive Ones | Easy | Array |
| 1388 | Max Consecutive Ones II | Medium | ArrayDynamic ProgrammingSliding Window |
| 1389 | Max Consecutive Ones III | Medium | ArrayBinary SearchSliding Window |
| 1390 | Max Difference You Can Get From Changing an Integer | Medium | MathGreedy |
| 1391 | Max Increase to Keep City Skyline | Medium | ArrayGreedyMatrix |
| 1392 | Max Number of K-Sum Pairs | Medium | ArrayHash TableTwo Pointers |
| 1393 | Max Pair Sum in an Array | Easy | ArrayHash Table |
| 1394 | Max Points on a Line | Hard | ArrayHash TableMath |
| 1395 | Max Stack | Hard | Linked ListStackDesign |
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