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Every Line on the Receipt

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
senior

Interview Prompt

Transaction events arrive as nested structures: each has a store_id, a timestamp, and a list of purchased items. Flatten them into individual item records, each carrying the store_id, timestamp, item_name, and item_price from the parent transaction.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your python solution with real code execution
  4. Get instant feedback and a hire/no-hire decision