Roll Call
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
A monitoring export hands you the sorted, distinct record IDs that actually landed in a log, plus the inclusive `lower` and `upper` bounds of the ID range that should have been there. Return the `[start, end]` ranges covering every ID in `[lower, upper]` that is absent from `nums`, each range stretched as wide as it can go and a lone missing ID written as `[x, x]`.
Summary
The missing IDs in the log. Somebody has to notice.
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