The Online Elite
A medium 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
- medium
- Seniority
- L4
Interview Prompt
A payments platform wants to know how much online spend concentrates among its biggest earners. Looking only at online payments, total each merchant's online amount, take the `top_n` merchants by that total, and return the average of the online payments belonging to those merchants as a single float.
Summary
The top performers are hiding in the data.
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