Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2221 | Path Existence Queries in a Graph I | Medium | ArrayHash TableBinary Search |
| 2222 | Path Existence Queries in a Graph II | Hard | ArrayTwo PointersBinary Search |
| 2223 | Path In Zigzag Labelled Binary Tree | Medium | MathTreeBinary Tree |
| 2224 | Path Sum | Easy | TreeDepth-First SearchBreadth-First Search |
| 2225 | Path Sum II | Medium | BacktrackingTreeDepth-First Search |
| 2226 | Path with Maximum Gold | Medium | ArrayBacktrackingMatrix |
| 2227 | Path With Maximum Minimum Value | Medium | ArrayBinary SearchDepth-First Search |
| 2228 | Path with Maximum Probability | Medium | ArrayGraphHeap (Priority Queue) |
| 2229 | Paths in Matrix Whose Sum Is Divisible by K | Hard | ArrayDynamic ProgrammingMatrix |
| 2230 | Paths in Maze That Lead to Same Room | Medium | Graph |
| 2231 | Patients With a Condition | Easy | Database |
| 2232 | Peaks in Array | Hard | ArrayBinary Indexed TreeSegment Tree |
| 2233 | People Whose List of Favorite Companies Is Not a Subset of Another List | Medium | ArrayHash TableString |
| 2234 | Percentage of Letter in String | Easy | String |
| 2235 | Percentage of Users Attended a Contest | Easy | Database |
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