Who Came First
An easy 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
- easy
- Seniority
- mid
Interview Prompt
An upstream feed hands you member IDs in the exact order they were scanned during a shift, and the same member often gets scanned several times. Collapse the feed so each member appears only once.
Summary
The feed repeats itself. Keep each member only the first time it speaks.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your Python against test cases
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision