The Market Streak
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
You have a stock's daily closing prices in `prices`, oldest first. For each day, report how many consecutive days up to and including that day had a price no greater than that day's price; the run ends the moment an earlier day was more expensive. Return one count per day in the same order, and every day counts at least itself.
Summary
Some stocks run longer than you think.
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