The Slow Leak
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
A metrics rollup arrives in `nested`: a list where each element is either a leaf reading or another sub-group, with sub-groups nested to arbitrary depth. Return one flat list of every reading.
Summary
Nested groups. One flat stream.
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