Pregunta de entrevista de Affirm

Live Coding: The challenge involved processing two input strings representing user logs. I had to implement a function to filter these logs based on a specific set of business rules and return an array of all valid users. The focus was on data manipulation and efficiency. System Design: Design a payment system for a user to pay back an active loan. A key constraint was that the system had to interact with an external bank API that only accepts requests during a limited window of a few hours per day.