The Month-by-Month Snapshot
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
We're building a monthly sales crosstab from raw sales records, each carrying an employee, a month, and an amount. Return one dict per employee that spreads their sales into month-named keys, each holding that employee's total for the month, alongside their `employee_id`.
Summary
Every salesperson has a story. The months just tell it sideways.
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