Practice problems across 75+ categories
Practice problems frequently asked at Bit Manipulation • 249 problems | 48 Easy | 116 Medium | 85 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 211 | Remove All Ones With Row and Column Flips | Medium | ArrayMathBit Manipulation |
| 212 | Remove All Ones With Row and Column Flips II | Medium | ArrayBit ManipulationBreadth-First Search |
| 213 | Repeated DNA Sequences | Medium | Hash TableStringBit Manipulation |
| 214 | Reverse Bits | Easy | Divide and ConquerBit Manipulation |
| 215 | Score After Flipping Matrix | Medium | ArrayGreedyBit Manipulation |
| 216 | Select Cells in Grid With Maximum Score | Hard | ArrayDynamic ProgrammingBit Manipulation |
| 217 | Set Mismatch | Easy | ArrayHash TableBit Manipulation |
| 218 | Shopping Offers | Medium | ArrayDynamic ProgrammingBacktracking |
| 219 | Shortest Path to Get All Keys | Hard | ArrayBit ManipulationBreadth-First Search |
| 220 | Shortest Path Visiting All Nodes | Hard | Dynamic ProgrammingBit ManipulationBreadth-First Search |
| 221 | Shortest Subarray With OR at Least K I | Easy | ArrayBit ManipulationSliding Window |
| 222 | Shortest Subarray With OR at Least K II | Medium | ArrayBit ManipulationSliding Window |
| 223 | Single Number | Easy | ArrayBit Manipulation |
| 224 | Single Number II | Medium | ArrayBit Manipulation |
| 225 | Single Number III | Medium | ArrayBit Manipulation |
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