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Credit Card Fraud Detection

Algorithm · Stripe · Easy

A payment service handles transactions for merchants. Every transaction begins with an authorization request, which indicates that funds are intended to move from a cardholder's credit card to a merchant. The input is requests, a list of authorization records. Each record is represented by a CSV string with this layout: " , , , , ". The records have already been validated and are guaranteed to follow this format. For this task, every request must receive approval. Implement…

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