Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 391 | Chinese Remainder Theorem Solver | Hard | Advanced AlgorithmsMathNumber Theory |
| 392 | Choose Edges to Maximize Score in a Tree | Medium | Dynamic ProgrammingTreeDepth-First Search |
| 393 | Choose K Elements With Maximum Sum | Medium | ArraySortingHeap (Priority Queue) |
| 394 | Choose Numbers From Two Arrays in Range | Hard | ArrayDynamic Programming |
| 395 | Chunk Array | Easy | JavaScript |
| 396 | Cinema Seat Allocation | Medium | ArrayHash TableGreedy |
| 397 | Circle and Rectangle Overlapping | Hard | MathGeometry |
| 398 | Circular Array Loop | Medium | ArrayHash TableTwo Pointers |
| 399 | Circular Buffer | Easy | Data StructuresArrayModulo |
| 400 | Circular Permutation in Binary Representation | Medium | MathBacktrackingBit Manipulation |
| 401 | Circular Sentence | Easy | String |
| 402 | Class Performance | Medium | Database |
| 403 | Classes With at Least 5 Students | Easy | Database |
| 404 | Classifying Triangles by Lengths | Easy | Database |
| 405 | Classroom Seating Conflict | Easy | GraphBFSBipartite |
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