

Cart Combos
Your dataset contains one year of point-of-sale transactions from a grocery store, including approximately 88,000 line items across 20,000 customer orders.
Your task is to identify the five product pairs that are purchased together most often.
Two products are "purchased together" if they appear in the same transaction
A pair must consist of two different products
Product pairs are unordered, meaning (A, B) and (B, A) should be treated as the same pair
Count each pair once per transaction, regardless of the quantity purchased
See sample logic below:

Submit your solution
How many transactions does the top product pairing have?
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