The Zero Propagator
A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
You're scrubbing a 2D integer matrix pulled from a data export. Whenever a cell holds a zero, blank the whole row and the whole column that cell sits in, and return the resulting matrix.
Summary
One zero can change the whole picture.
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