Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 555 | Split Concatenated Strings | Medium | ArrayStringGreedy |
| 556 | Next Greater Element III | Medium | MathTwo PointersString |
| 558 | Logical OR of Two Binary Grids Represented as Quad-Trees | Easy | Divide and ConquerTree |
| 559 | Longest Line of Consecutive One in Matrix | Medium | ArrayDynamic ProgrammingMatrix |
| 559 | Maximum Depth of N-ary Tree | Easy | TreeDepth-First SearchBreadth-First Search |
| 560 | Subarray Sum Equals K | Medium | ArrayHash TablePrefix Sum |
| 561 | Array Partition | Easy | ArrayGreedySorting |
| 563 | Binary Tree Tilt | Easy | TreeDepth-First SearchBinary Tree |
| 564 | Find the Closest Palindrome | Hard | MathString |
| 565 | Array Nesting | Medium | ArrayDepth-First Search |
| 566 | Reshape the Matrix | Easy | ArrayMatrixSimulation |
| 567 | Permutation in String | Medium | Hash TableTwo PointersString |
| 568 | Maximum Vacation Days | Hard | ArrayDynamic ProgrammingMatrix |
| 569 | Median Employee Salary | Hard | Database |
| 570 | Managers with at Least 5 Direct Reports | Medium | Database |
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