L11Y2015

#include "stdafx.h"
#include <iostream>
#include <string>
using namespace std;

class Product {
private:
    friend istream& operator >> (istream &stream, Product& product) {
        stream >> product.name >> product.price >> product.quantity;
        return stream;
    }
    friend int getSum(Product &product);
    string name;
    int price;
    int quantity;
};

int getSum(Product &product) {
    return product.price * product.quantity;
}

int main()
{
    int numberOfProduct = 0;
    int totalSum = 0;
    cout << "Enter number of product: ";
    cin >> numberOfProduct;

    cout << '\n';

    for (int i = 0; i < numberOfProduct; i++) {
        cout << "Enter data of " << i + 1 << " product: ";
        Product product;
        cin >> product;
        totalSum += getSum(product);
    }

    cout << "\nTotal sum: " << totalSum;

    return 0;
}