The Category Ranker
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
- L5
Interview Prompt
Given a list of records (dicts each with 'category' and 'value') and integer n, return a dict mapping each category to the top n records by value descending. Break ties by preserving original insertion order. If a category has fewer than n records, include all of them.
Summary
Categories have standing. Rows get theirs.
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