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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
- L3
Interview Prompt
Given old_records and new_records (each a list of dicts with an 'id' key), return a dict with three sorted lists of ids: 'added' (in new but not old), 'removed' (in old but not new), 'modified' (in both, where any non-id field differs between the matched records). Sort each id list ascending.
Summary
Before and after snapshots. The delta is in there.
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