Low Level Design, Object Oriented, Graph Data Structure, Hashmap, Interview Questions.
self.category_products[cat_id]: self.product_categories[prod_id].remove(cat_id) if len(self.product_categories[prod_id]) == 0: self.deleteProduct(prod_id) # Delete key self.category_products.pop(cat_id) except Exception as e: print("Error: ", e) That looks like a decent implementation (although we