Добавление новой переменной для умножения

#include <cstdlib>
#include <iostream>
#include <string>
using namespace std;
 
struct Team
{
    string country;
    int gold;
    int silver;
    int bronze;
    int rate;
    
    int get_rate()
    { return (gold * 7) + (silver * 6) + (bronze * 5); }
 
    void show()
    {
        cout << country << ": " << "rate = " << rate << endl;
        cout << "gold = " << gold << ' ' << "silver = " << silver << ' ' << "bronze = " << bronze;
        cout << endl;
    }
};
 
void sort(Team teams[], int size)
{
    for (int i = 0; i < size - 1; ++i)
    {
        for (int j = 0; j < size - 1; ++j)
        {
            if (teams[j + 1].rate > teams[j].rate)
            {
                Team temp = teams[j];
                teams[j] = teams[j + 1];
                teams[j + 1] = temp;
            }
        }
    }
}
 
int main()
{
    const int N = 10;
    
    Team teams[N];
 
    teams[0].country = "Germany";
    teams[1].country = "Italy";
    teams[2].country = "Russia";
    teams[3].country = "Japan";
    teams[4].country = "Hungary";
    teams[5].country = "Great Britain";
    teams[6].country = "Ukraine";
    teams[7].country = "Belorussia";
    teams[8].country = "Sloveniya";
    teams[9].country = "Serbia";
 
    cout << "   Teams:\n" << endl;
    for(int i = 0; i < N; i++)
    {
        cout << teams[i].country << ":\n";
        cout << "gold = ";
        cin >> teams[i].gold;
        cout << "silver = ";
        cin >> teams[i].silver;
        cout << "bronze = ";
        cin >> teams[i].bronze;
        teams[i].rate = teams[i].get_rate();
        cout << endl;
    }
    cout << endl;
 
    sort(teams, N);
    
    for(int i = 0; i < N; i++)
    {
        teams[i].show();
        cout << endl;
    }
    
    system("pause");
    return 0;
}