OpenAI loop prep

OfficialOpenAIby Frontier Interview

The loop in order: the recruiter call, the coding screen, system design, the practical coding rounds, then the project deep dive and values.

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  1. How do you use AI in your work?
    BehavioralReference answer: Frontier Interview's solution
  2. Threshold infection spread on a grid
    CodingReference answer: Frontier Interview's solution
  3. Memory allocator with malloc, free and coalescing
    CodingReference answer: Frontier Interview's solution
  4. Toy language type inference with generics and tuples
    CodingReference answer: Frontier Interview's solution
  5. Three-card showdown between two players
    CodingReference answer: Frontier Interview's solution
  6. Design a payment system
    System designReference answer: Frontier Interview's solution
  7. Design an online chess game
    System designReference answer: Frontier Interview's solution
  8. Design a sandboxed cloud IDE
    System designReference answer: Frontier Interview's solution
  9. Design ChatGPT streaming with resumable responses and long conversations
    AI systemReference answer: Frontier Interview's solution
  10. Design a CI/CD system
    System designReference answer: Frontier Interview's solution
  11. GPU credit ledger with out-of-order events
    CodingReference answer: Frontier Interview's solution
  12. Social follow graph with point-in-time snapshots
    CodingReference answer: Frontier Interview's solution
  13. Count and map a cluster tree with message passing
    CodingReference answer: Frontier Interview's solution
  14. Turn-based monster team battle simulator
    CodingReference answer: Frontier Interview's solution
  15. Data labeling scheduler with prefix-balanced models
    CodingReference answer: Frontier Interview's solution
  16. Extensible chat app with command bots
    CodingReference answer: Frontier Interview's solution
  17. Fault-tolerant work queue with leases and retries
    CodingReference answer: Frontier Interview's solution
  18. IPv4 range iterator with reverse and CIDR support
    CodingReference answer: Frontier Interview's solution
  19. Project deep dive: present a project you led
    BehavioralReference answer: Frontier Interview's solution
  20. Build your story bank
    BehavioralReference answer: Frontier Interview's solution