yixuan.zhang97Jun 18, 2026

Anthropic OA, task manager design problem

Hack2hire Community · 2026-06-18T18:00:00.065Z

Result: Pending Number of Rounds: 1 Sharing the Anthropic OA problem. Design-heavy but not algorithmically complex. You implement a TaskManager class with three operations: add a task by name and priority, update a task by ID, and retrieve a task's current state. addTask returns a sequentially assigned ID. Duplicates are allowed, two tasks with identical name and priority both get distinct IDs. getTask returns an empty string for missing IDs; updateTask signals whether the ID was found. Each met...

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Replies (3)

gracelin94Jun 19, 2026

AtomicInteger + ConcurrentHashMap is exactly what I would have said for thread safety. solid answer

lizheng1999Jun 18, 2026

waiting to hear back too after OA last week. is the OA a standalone filter before phone screen for you?

yixuan.zhang97Jun 18, 2026

yeah, recruiter said OA is the first filter before they decide on phone screen. not sure how long the decision takes

User-2c3efJun 18, 2026

did you have time pressure? 45 min for a design OA feels tighter than pure LC

yixuan.zhang97Jun 19, 2026

had maybe 10-15 mins left. reading the spec took a while before I could start coding