The Grid Pivot
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
A metrics export arrives as `matrix`, a list of equal-length rows of readings. Return that grid turned on its side, so each original column becomes a row, and return an empty list when `matrix` is empty.
Summary
A different angle reveals a completely different 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