#include <iostream>
using namespace std;

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

/*
    u*v = u1 * v1 + u2 * v2 + u3 * v3
*/

class Wektory
{
    public:
    double u1 = 0;
    double v1 = 0;

    Wektory(double wektorX, double wektorY, dobuleZ);
};

Wektory::Wektory(double wektorX, double wektorY, double wektorZ)
{
    u = wektorX;
    v = wektorY;
         w = wektorZ;
}

double operator*(Wektory wek1, Wektory wek2)
{
    return wek1.u1 * wek2.u1 + wek1.v1 * wek2.v1 + wek1.w * wek2.w;
}

int main(int argc, char** argv)
{
    double x1;
    double y1;

    cout << "Podaj wektor X1:" << endl;
    cin >> x1;
    cout << "Podaj wektor Y1:" << endl;
    cin >> y1;

    Wektory wek1(x1, y1);

    cout << "Podaj wektor X2:" << endl;
    cin >> x1;
    cout << "Podaj wektor Y2:" << endl;
    cin >> y1;

    Wektory wek2(x1, y1);

    cout << "Podaj wektor X3:" << endl;
    cin >> x1;
    cout << "Podaj wektor Y3:" << endl;
    cin >> y1;

    Wektory wek3(x1, y1);

    cout << wek1*wek2;<< endl;

    system("pause");


    return 0;
}