Low Level Design, Object Oriented, Graph Data Structure, Hashmap, Interview Questions.
not in self.nodes: self.addCategory(cat_id) cat_node = self.nodes[(cat_id, "CATEGORY")] self.graph.addEdge(prod_node, cat_node) self.graph.addEdge(cat_node, prod_node, "price") except Exception as e: print("Error: ", e) Set the price of a product def setPriceOfProduct(self, prod_id, price): # Set