The Market Streak

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
L4

Interview Prompt

You have a stock's daily closing prices in `prices`, oldest first. For each day, report how far back its run stretches before a pricier day breaks it, as one count per day in the same order.

Summary

Some stocks run longer than you think.

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