LLD for Parking Lot System: Designing a Smart Garage

TLDR TLDR: A Parking Lot is the "Hello World" of Low-Level Design. It teaches Encapsulation (ParkingFloor hides its Min-Heap), Abstraction (PricingStrategy interface), Inheritance (BikeSpot/CompactSpot/LargeSpot extend ParkingSpot), and Polymorphism...