The Zero Propagator
A medium Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
You're cleaning a 2D integer matrix from a data export where a 0 marks a bad reading. Zero out every row and every column that contains a bad reading, and return the cleaned 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 and run your Python against test cases
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision