Account Balance Manager

Problem Overview

You are given a list of transactions in CSV format with columns: account_name, timestamp, currency, amount. Each row represents a credit (positive amount) or debit (negative amount) to an account. Part 1: Parse the transactions, compute the final balance per account (sorted by timestamp), and return only accounts whose balance…

• 2 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
• The rest of the problem statement — full requirements, constraints, and edge cases
• Approach and trade-offs — what passing candidates did, and the mistakes that sink people