The Intervals
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
- L3
Interview Prompt
You're grouping a list of activity dates in 'YYYY-MM-DD' format into consecutive 7-day windows measured from the earliest date, so the first window holds the dates closest to the start and each later window covers the next seven days. Return a dict mapping each window's number to the dates that fell in it.
Summary
Timestamps in buckets.
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