The Single Bit
A easy Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
Given an integer, return True if it is a positive power of 2 (1, 2, 4, 8, 16, ...). Use bitwise operations: (n > 0) AND (n & (n - 1)) == 0.
Summary
One particular pattern hides in plain sight.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision