The Rolling Window
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
Given a list of numbers and positive integer k, compute the average of every contiguous window of size k. Return the list of averages (one per window) rounded to 2 decimals. If len(nums) < k, return an empty list.
Summary
Smooth things out, one step at a 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