Practice problems across 75+ categories
Practice problems frequently asked at Bit Manipulation • 249 problems | 48 Easy | 116 Medium | 85 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 61 | Find Number of Ways to Reach the K-th Stair | Hard | MathDynamic ProgrammingBit Manipulation |
| 62 | Find Products of Elements of Big Array | Hard | ArrayBinary SearchBit Manipulation |
| 63 | Find Root of N-Ary Tree | Medium | Hash TableBit ManipulationTree |
| 64 | Find Subarray With Bitwise OR Closest to K | Hard | ArrayBinary SearchBit Manipulation |
| 65 | Find Sum of Array Product of Magical Sequences | Hard | ArrayMathDynamic Programming |
| 66 | Find the Difference | Easy | Hash TableStringBit Manipulation |
| 67 | Find the Duplicate Number | Medium | ArrayTwo PointersBinary Search |
| 68 | Find the K-or of an Array | Easy | ArrayBit Manipulation |
| 69 | Find the K-th Character in String Game I | Easy | MathBit ManipulationRecursion |
| 70 | Find the K-th Character in String Game II | Hard | MathBit ManipulationRecursion |
| 71 | Find The K-th Lucky Number | Medium | MathStringBit Manipulation |
| 72 | Find the Longest Substring Containing Vowels in Even Counts | Medium | Hash TableStringBit Manipulation |
| 73 | Find the Maximum Sequence Value of Array | Hard | ArrayDynamic ProgrammingBit Manipulation |
| 74 | Find the Maximum Sum of Node Values | Hard | ArrayDynamic ProgrammingGreedy |
| 75 | Find the Minimum Cost Array Permutation | Hard | ArrayDynamic ProgrammingBit Manipulation |
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