Practice problems across 75+ categories
Practice problems frequently asked at Backtracking • 109 problems | 3 Easy | 73 Medium | 32 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 31 | Generalized Abbreviation | Medium | StringBacktrackingBit Manipulation |
| 32 | Generate Binary Strings Without Adjacent Zeros | Medium | StringBacktrackingBit Manipulation |
| 33 | Generate Parentheses | Medium | StringDynamic ProgrammingBacktracking |
| 34 | Gray Code | Medium | MathBacktrackingBit Manipulation |
| 35 | Iterator for Combination | Medium | StringBacktrackingDesign |
| 36 | Largest Time for Given Digits | Medium | ArrayStringBacktracking |
| 37 | Letter Case Permutation | Medium | StringBacktrackingBit Manipulation |
| 38 | Letter Combinations of a Phone Number | Medium | Hash TableStringBacktracking |
| 39 | Letter Tile Possibilities | Medium | Hash TableStringBacktracking |
| 40 | Longest Subsequence Repeated k Times | Hard | StringBacktrackingGreedy |
| 41 | Matchsticks to Square | Medium | ArrayDynamic ProgrammingBacktracking |
| 42 | Maximize Score After N Operations | Hard | ArrayMathDynamic Programming |
| 43 | Maximum Compatibility Score Sum | Medium | ArrayDynamic ProgrammingBacktracking |
| 44 | Maximum Good People Based on Statements | Hard | ArrayBacktrackingBit Manipulation |
| 45 | Maximum Length of a Concatenated String with Unique Characters | Medium | ArrayStringBacktracking |
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.
