Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3525 | Find X Value of Array II | Hard | ArrayMathSegment Tree |
| 3525 | Unit Conversion I | Medium | Depth-First SearchBreadth-First SearchGraph |
| 3526 | Range XOR Queries with Subarray Reversals | Hard | ArrayTreeBinary Tree |
| 3527 | Find the Most Common Response | Medium | ArrayHash TableString |
| 3529 | Count Cells in Overlapping Horizontal and Vertical Substrings | Medium | ArrayStringRolling Hash |
| 3530 | Maximum Profit from Valid Topological Order in DAG | Hard | ArrayDynamic ProgrammingBit Manipulation |
| 3531 | Count Covered Buildings | Medium | ArrayHash TableSorting |
| 3532 | Path Existence Queries in a Graph I | Medium | ArrayHash TableBinary Search |
| 3533 | Concatenated Divisibility | Hard | ArrayDynamic ProgrammingBit Manipulation |
| 3534 | Path Existence Queries in a Graph II | Hard | ArrayTwo PointersBinary Search |
| 3535 | Merge Operations for Minimum Travel Time | Hard | ArrayDynamic ProgrammingPrefix Sum |
| 3535 | Unit Conversion II | Medium | ArrayMathDepth-First Search |
| 3536 | Maximum Product of Two Digits | Easy | MathSorting |
| 3537 | Fill a Special Grid | Medium | ArrayDivide and ConquerMatrix |
| 3539 | Find Sum of Array Product of Magical Sequences | Hard | ArrayMathDynamic Programming |
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