Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1621 | Masking Personal Information | Medium | String |
| 1622 | Match Alphanumerical Pattern in Matrix I | Medium | ArrayHash TableString |
| 1623 | Match Substring After Replacement | Hard | ArrayHash TableString |
| 1624 | Matchsticks to Square | Medium | ArrayDynamic ProgrammingBacktracking |
| 1625 | Matrix Block Sum | Medium | ArrayMatrixPrefix Sum |
| 1626 | Matrix Cells in Distance Order | Easy | ArrayMathGeometry |
| 1627 | Matrix Diagonal Sum | Easy | ArrayMatrix |
| 1628 | Matrix Similarity After Cyclic Shifts | Easy | ArrayMathMatrix |
| 1629 | Max Area of Island | Medium | ArrayDepth-First SearchBreadth-First Search |
| 1630 | Max Chunks To Make Sorted | Medium | ArrayStackGreedy |
| 1631 | Max Chunks To Make Sorted II | Hard | ArrayStackGreedy |
| 1632 | Max Consecutive Ones | Easy | Array |
| 1633 | Max Consecutive Ones II | Medium | ArrayDynamic ProgrammingSliding Window |
| 1634 | Max Consecutive Ones III | Medium | ArrayBinary SearchSliding Window |
| 1635 | Max Difference You Can Get From Changing an Integer | Medium | MathGreedy |
Powerful online tools to boost your productivity
Coding Ground For Developers
Code, Edit, Run and ShareIgnite your coding potential on Coding Ground - an immersive online platform for hands-on learning, collaboration, and skill development.
