Your question is Design a Meal Order Processing Ranker. 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 are designing the real-time system behind meal order processing for a food delivery platform. Orders arrive continuously from customers, kitchens, and delivery partners, and the system must decide how to route and prioritize them as traffic changes.
How would you design a system to process meal orders in real time, including handling spikes in traffic and ensuring reliability?