The Counting Machine
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
- L4
Interview Prompt
Implement CountUp(values). Its iterator yields values[i] * (i + 1) for i = 0..len(values)-1. The test harness constructs the object then collects list(iter(obj)) and expects the produced list.
Summary
It knows where it stopped last time.
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