Count Completed Jobs in a Serial Single-Worker Pipeline
Company: Plaid
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Technical Screen
Overview: Calculate how many jobs finish before a deadline in a serial, stage-gated, single-worker pipeline. The prompt tests cumulative-time reasoning, partial-stage completion, zero-job stages, very large counts and durations, overflow safety, and linear processing without mutating input.
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