Birds of a Feather
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
- L4
Interview Prompt
An ingestion step hands you a list of record dicts in `records` and the name of a field in `key`. Return a dict mapping each value found under that field to the list of records carrying it.
Summary
Every record finds its kin; keep them in the order they arrived.
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