Your question is LeetCode Plus System Design. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You will get a LeetCode-style problem followed by a system design question. How would you approach both?
Describe how you would clarify requirements, reason about correctness and complexity for the coding problem, then structure the ML system design discussion. Explain how you would communicate assumptions, compare alternatives, validate the solution, and identify failure modes without relying on unstated product details.