Practice problems across 75+ categories
Practice problems frequently asked at Math • 596 problems | 150 Easy | 283 Medium | 161 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 451 | Path In Zigzag Labelled Binary Tree | Medium | MathTreeBinary Tree |
| 452 | Perfect Number | Easy | Math |
| 453 | Perfect Rectangle | Hard | ArrayHash TableMath |
| 454 | Perfect Squares | Medium | MathDynamic ProgrammingBreadth-First Search |
| 455 | Perform String Shifts | Easy | ArrayMathString |
| 456 | Permutation Sequence | Hard | MathRecursion |
| 457 | Permutations IV | Hard | ArrayMathCombinatorics |
| 458 | Plus One | Easy | ArrayMath |
| 459 | Plus One Linked List | Medium | Linked ListMath |
| 460 | Polygon Area Calculator | Hard | GeometryAlgorithmMath |
| 461 | Polynomial Addition | Medium | Linked ListsLinked ListMath |
| 462 | Poor Pigs | Hard | MathDynamic ProgrammingCombinatorics |
| 463 | Power Calculator | Easy | LoopsLoopMath |
| 464 | Power of Four | Easy | MathBit ManipulationRecursion |
| 465 | Power of Heroes | Hard | ArrayMathDynamic Programming |
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