Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2521 | Output Contest Matches | Medium | StringRecursionSimulation |
| 2522 | Pacific Atlantic Water Flow | Medium | ArrayDepth-First SearchBreadth-First Search |
| 2523 | Paint Fence | Medium | Dynamic Programming |
| 2524 | Paint House | Medium | ArrayDynamic Programming |
| 2525 | Paint House II | Hard | ArrayDynamic Programming |
| 2526 | Paint House III | Hard | ArrayDynamic Programming |
| 2527 | Paint House IV | Medium | ArrayDynamic Programming |
| 2528 | Painting a Grid With Three Different Colors | Hard | Dynamic Programming |
| 2529 | Painting the Walls | Hard | ArrayDynamic Programming |
| 2530 | Pairs of Songs With Total Durations Divisible by 60 | Medium | ArrayHash TableCounting |
| 2531 | Palindrome Linked List | Easy | Linked ListTwo PointersStack |
| 2532 | Palindrome Number | Easy | Math |
| 2533 | Palindrome Pairs | Hard | ArrayHash TableString |
| 2534 | Palindrome Partitioning | Medium | StringDynamic ProgrammingBacktracking |
| 2535 | Palindrome Partitioning II | Hard | StringDynamic Programming |
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