Quick Overview

Schedule arriving seller tasks by per-seller priority and FIFO order while rotating fairly across sellers. The exercise adds tier weights, seller activation and reactivation, empty queues, null processing results, and persistent turn state across interleaved operations.

Schedule Seller Tasks with Tier-Weighted Round Robin

Company: TikTok

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: hard

Interview Round: Onsite

Overview: Schedule arriving seller tasks by per-seller priority and FIFO order while rotating fairly across sellers. The exercise adds tier weights, seller activation and reactivation, empty queues, null processing results, and persistent turn state across interleaved operations.

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