This project simulates a basic online store backend using C++ Standard Template Library (STL). It manages products, customer orders, inventory, and customer data efficiently.

Product Management: Store and categorize products with their IDs, names, and categories. Order Tracking: Record customer orders with timestamps. Inventory Control: Track stock levels using a map. Customer Queue: Maintain a deque for recent customer activity. Category Management: Organize product categories using set. Customer Data Management: Store customer information using unordered_map. Unique Products: Ensure unique product entries with unordered_set.