mini_HW_3_MoshchanetskayaMaria

sem1/Moshchanetskaya Maria/List of shops.txt

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+Shop Ostin 
+Items 5 
+T-short 700 50 cotton 
+sweater 1200 150 wool 
+jacket 1500 100 denim 
+skirt 500 70 leather 
+shirt 600 cotton 
+Shop Gorzdrav
+Items 5
+coldrex 800 40 internal
+bandage 120 30 external
+thermometer 150 20 internal
+noshpa 750 60 external
+ingavirin 830 80 external
+Shop Leonardo
+Items 6
+pencil 50 15 green
+pen 60 20 blue
+notebook 350 200 pink
+artbook 1300 600 orange
+sketchbook 450 320 gray
+erase 50 10 white
+
+

sem1/Moshchanetskaya Maria/mini_HomeWork_3.cpp

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+/*#include <iostream>
+#include <vector>
+#include <string>
+#include <fstream>
+#include <sstream>
+
+class Item
+{
+public:
+	std::string name;
+	int cost;
+	int weight;
+
+	Item(std::string name, int cost, int weight): name(name), cost(cost),weight(weight){}
+};
+
+class Shop
+{
+public:
+	std::vector<Item*> items;
+	std::string shop_name;
+	//float average_cost;
+	//float average_weight;
+
+	void AddItem(Item* item)
+	{
+		items.push_back(item);
+	}
+
+	float averagePrice() {
+		float total = 0;
+		for (auto& item : items) {
+			total += item->cost;
+		}
+		return items.empty() ? 0 : total / items.size();
+	}
+
+	float averageWeight() {
+		float total = 0;
+		for (auto& item : items) {
+			total += item->weight;
+		}
+		return items.empty() ? 0 : total / items.size();
+	}
+};
+
+class ClothesItem : public Item
+{
+public:
+	std::string material;
+	ClothesItem(std::string name, int cost, int weight,std::string material):Item(name, cost, weight), material(material) {}
+};
+
+class MedicineItem : public Item
+{
+public:
+	std::string application;
+	MedicineItem(std::string name, int cost, int weight, std::string application):Item(name, cost, weight), application(application) {}
+};
+
+class ArtItem : public Item
+{
+public:
+	std::string colour;
+	ArtItem(std::string name, int cost, int weight, std::string colour) :Item(name, cost, weight), colour(colour) {}
+};
+
+void Show_list_of_shops()
+{
+
+}
+
+int main()
+{
+	std::ifstream file("List of shops.txt", std::ios::app); // эта часть выводит записи из файла, ее надо применять только при соответствующей команде
+	std::string line;
+	std::vector<Shop> shops;
+	while (std::getline(file, line))
+	{
+		if (line.find("Shop") != std::string::npos)
+		{
+			std::string shop_name = line.substr(5);
+			shops.emplace_back(shop_name);
+		}
+		else if (line.find("Items") != std::string::npos)
+		{
+			int numb_of_products;
+			std::istringstream(line.substr(6)) >> numb_of_products;
+			for (int i = 0; i < numb_of_products; ++i)
+			{
+				std::stringstream iss(line);
+				std::string item_name;
+				int cost, weight;
+				if (shops.back().shop_name == "Ostin")
+				{
+					std::string material;
+					iss >> material;
+					ClothesItem* clothesItem = new ClothesItem(item_name, cost, weight, material);
+					shops.back().AddItem(clothesItem);
+				}
+				else if (shops.back().shop_name == "Gorzdrav")
+				{
+					std::string application;
+					iss >> application;
+					MedicineItem* medItem = new MedicineItem(item_name, cost, weight, application);
+					shops.back().AddItem(medItem);
+				}
+				else if (shops.back().shop_name == "Leonardo")
+				{
+					std::string colour;
+					iss >> colour;
+					ArtItem* artItem = new ArtItem(item_name, cost, weight, colour);
+					shops.back().AddItem(artItem);
+				}
+			}
+		}
+
+
+	}
+	for (auto& shop : shops)
+	{
+		std::cout << "Shop: " << shop.shop_name << std::endl;
+		std::cout << "Average Price: " << shop.averagePrice() << std::endl;
+		std::cout << "Average Weight: " << shop.averageWeight() << std::endl;
+		std::cout << std::endl;
+	}
+
+	file.close();
+}*/
+#include <iostream>
+#include <vector>
+#include <string>
+#include <fstream>
+#include <sstream>
+#include <memory> // Для использования умных указателей
+
+class Item
+{
+public:
+	std::string name;
+	int cost;
+	int weight;
+
+	Item(std::string name, int cost, int weight) : name(name), cost(cost), weight(weight) {}
+};
+
+class Shop
+{
+public:
+	std::vector<std::shared_ptr<Item>> items; // Используем shared_ptr для управления памятью
+	std::string shop_name;
+
+	Shop(std::string name) : shop_name(name) {} // Конструктор для инициализации имени магазина
+
+	void AddItem(std::shared_ptr<Item> item)
+	{
+		items.push_back(item);
+	}
+
+	float averagePrice() {
+		float total = 0;
+		for (const auto& item : items) {
+			total += item->cost;
+		}
+		return items.empty() ? 0 : total / items.size();
+	}
+
+	float averageWeight() {
+		float total = 0;
+		for (const auto& item : items) {
+			total += item->weight;
+		}
+		return items.empty() ? 0 : total / items.size();
+	}
+};
+
+class ClothesItem : public Item
+{
+public:
+	std::string material;
+	ClothesItem(std::string name, int cost, int weight, std::string material) : Item(name, cost, weight), material(material) {}
+};
+
+class MedicineItem : public Item
+{
+public:
+	std::string application;
+	MedicineItem(std::string name, int cost, int weight, std::string application) : Item(name, cost, weight), application(application) {}
+};
+
+class ArtItem : public Item
+{
+public:
+	std::string colour;
+	ArtItem(std::string name, int cost, int weight, std::string colour) : Item(name, cost, weight), colour(colour) {}
+};
+
+int main()
+{
+	std::ifstream file("List of shops.txt");
+	std::string line;
+	std::vector<Shop> shops;
+
+	while (std::getline(file, line))
+	{
+		if (line.find("Shop") != std::string::npos)
+		{
+			std::string shop_name = line.substr(5);
+			shops.emplace_back(shop_name);
+		}
+		else if (line.find("Items") != std::string::npos)
+		{
+			int numb_of_products;
+			std::istringstream(line.substr(6)) >> numb_of_products;
+			for (int i = 0; i < numb_of_products; ++i)
+			{
+				std::string item_name;
+				int cost, weight;
+				std::string additional_info;
+
+				// Чтение следующей строки для получения информации о товаре
+				std::getline(file, line);
+				std::istringstream iss(line);
+				iss >> item_name >> cost >> weight >> additional_info;
+
+				if (shops.back().shop_name == "Ostin")
+				{
+					auto clothesItem = std::make_shared<ClothesItem>(item_name, cost, weight, additional_info);
+					shops.back().AddItem(clothesItem);
+				}
+				else if (shops.back().shop_name == "Gorzdrav")
+				{
+					auto medItem = std::make_shared<MedicineItem>(item_name, cost, weight, additional_info);
+					shops.back().AddItem(medItem);
+				}
+				else if (shops.back().shop_name == "Leonardo")
+				{
+					auto artItem = std::make_shared<ArtItem>(item_name, cost, weight, additional_info);
+					shops.back().AddItem(artItem);
+				}
+			}
+		}
+	}
+
+	for (const auto& shop : shops)
+	{
+		std::cout << "Shop:" << shop.shop_name << std::endl;
+		std::cout << "Average Price: " << shop.averagePrice() << std::endl;
+		std::cout << "Average Weight: " << shop.averageWeight() << std::endl;
+		std::cout << std::endl;
+	}
+
+	file.close();
+	return 0; // Возвращаем 0, чтобы указать, что программа завершилась успешно
+}
+
+
+
+