Code Room
Vibe codingHardvc-g604
Subject Ai tool fitLevel Senior–Staff~20 minCommon in Algorithms & data structures interviewsIndustries Software development, Technology

Question

You're designing a custom lock-free ring buffer for a low-latency C++ trading component where a subtle memory-ordering bug means lost or duplicated messages under load — and may pass every test for weeks before manifesting. Your junior wants to have the agent generate the whole thing. Would you reach for an AI assistant here, and where exactly does it stop being the right tool?

What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it — tests, edge cases, reading critically — and how you’d re-prompt or decompose to get it right.

Describe your solution

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.