All the Way Down
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
A config export arrives as a list whose entries are either plain values or further lists, nested to arbitrary depth with no fixed structure. Collapse it into a single flat list holding every leaf value in left-to-right order. Treat strings as leaf values, not as sequences to descend into.
Summary
However deep it nests, every leaf belongs on one line.
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