Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 196 | Break a Palindrome | Medium | StringGreedy |
| 197 | Brick Wall | Medium | ArrayHash Table |
| 198 | Brightest Position on Street | Medium | ArraySortingPrefix Sum |
| 199 | Broken Calculator | Medium | MathGreedy |
| 200 | Buddy Strings | Easy | Hash TableString |
| 201 | Build a Matrix With Conditions | Hard | ArrayGraphTopological Sort |
| 202 | Build an Array With Stack Operations | Medium | ArrayStackSimulation |
| 203 | Build Array from Permutation | Easy | ArraySimulation |
| 204 | Build Array Where You Can Find The Maximum Exactly K Comparisons | Hard | Dynamic ProgrammingPrefix Sum |
| 205 | Build Binary Expression Tree From Infix Expression | Hard | StringStackTree |
| 206 | Build the Equation | Hard | Database |
| 207 | Building Boxes | Hard | MathBinary SearchGreedy |
| 208 | Building H2O | Medium | Concurrency |
| 209 | Buildings With an Ocean View | Medium | ArrayStackMonotonic Stack |
| 210 | Bulb Switcher | Medium | MathBrainteaser |
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.
