Every Line on the Receipt

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

senior

Problem

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.

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