The Narrow Lens

A medium Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.

Domain
Python
Difficulty
medium
Seniority
L5

Interview Prompt

Raw sensor `values` arrive in order and are smoothed before alerting, with each reading replaced by the average of that reading and the ones just before it, at most `window_size` readings in all. Given the `window_size` and `values`, return the smoothed stream.

Summary

A narrow timeframe. Everything inside matters.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your Python against test cases
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision