The Onion Layer
A hard Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- hard
- Seniority
- L5
Interview Prompt
We've got sensor readings laid out on an m x n grid, and we need them serialized into one ordered stream for downstream logging. Return a flat list of every cell read off in spiral order.
Summary
Peel from the outside in - one ring at a time.
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