Coding - GPU Credit Tracker - OpenAI Interview Question | DarkInterview

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GPU Credit Tracker

CodingPhone, OnsiteSoftware Engineer, Machine Learning Engineer, Mobile EngineerReported Jul, 2026High Frequency

Problem Overview

Design a GPU credit ledger that supports:

adding credits with start and expiration windows
subtracting usage at a timestamp
querying balance at any timestamp

This is intentionally close to resource...