TL;DR — Dynamic/Surge Pricing

Design a dynamic pricing system like Uber's surge pricing that adjusts prices in real time based on supply (available drivers) and demand (ride requests) in a geographic area. When demand exceeds supply in a zone, prices increase to incentivize more drivers to enter the area and to reduce demand to match available supply. Key features: Divide service area into dynamic pricing zones. Compute surge multiplier per zone in real time.