The Field Counter
A easy Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L4
Interview Prompt
Given a list of dicts (records) and a key name, return a dict mapping each distinct value found at that key to the number of records containing that value. Records that do not have the key must be skipped.
Summary
Some fields speak louder than others.
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