When the Hours Touch
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
- mid
Interview Prompt
A driver toggles availability throughout a shift, and our status export logs each online stretch as a `[start, end]` pair of timestamps in seconds (carrying sub-second fractions), unsorted and frequently overlapping because a flaky app reconnects mid-session. Collapse these into the distinct windows the driver was actually online, treating two stretches that overlap or meet exactly end-to-end as one continuous window. Return the windows sorted by start time.
Summary
Two sessions that overlap are really one. Find the windows a driver was actually online.
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