The Shortest Path Home
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
- L3
Interview Prompt
API responses arrive as dicts nested arbitrarily deep, and the warehouse needs them as single-level rows. Collapse `nested` into a flat dict whose keys are the full path down to each value, joined by `separator`.
Summary
Every leaf remembers the road it came from. Bring them all back on one line.
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