Payments with Multi-Currency Balances

CodingStripeLast reported January 2026Low Frequency

Reported: 1× across candidate reports
First seen: January 2026
Last reported: January 2026
Reported outcome: unknown

Problem Overview

You are given a list of payments to process, each with a specified currency and amount, along with a balance map showing available funds in various currencies. For each payment, determine whether it can be successfully settled ('success') or not ('fail'). Part 1: Check if the balance in the payment's…

1 candidate-reported follow-up — 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

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Verified Source

Every question is reconstructed from multiple independent candidate reports. Verbatim follow-ups, not invented ones.

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Technical claims, formulas, and scale numbers are reviewed against primary sources.

Interviewer Follow-ups

The exact follow-ups reported by candidates, with the trigger that prompts each one — plus the mistakes that sink people.