#include <iostream>
#include <math.h>

using namespace std;
class wektor
{
    private:
    double x,y,z;
    public:
    void toString();
    wektor();
    wektor(double,double,double);
    wektor operator+(wektor&);
    double operator*(wektor&);
    wektor operator/(wektor&);
};
wektor::wektor()
{
    x=1;
    y=1;
    z=1;
}
wektor::wektor(double x,double y,double z)
{
    this->x=x;
    this->y=y;
    this->z=z;
}
void wektor::toString()
{
    cout<<"x="<<x<<"  y="<<y<<"  z="<<z<<endl;
}
wektor wektor::operator+(wektor&k)
{
    wektor tmp;
    tmp.x=this->y+k.x;
    tmp.y=this->y+k.y;
    tmp.z=this->z+k.z;
    return tmp;
}
double wektor::operator*(wektor&k)
{

    return this->x*k.x + this->y*k.y + this->z*k.z;

}
 wektor wektor:: operator/(wektor&k)
 {
     wektor tmp;
    tmp.x=this->y*k.z-this->z*k.y;
    tmp.y=this->x*k.z-this->z*k.x;
    tmp.z=this->x*k.y-this->y*k.x;
    return tmp;

 }

int main()
{
    wektor a,b(2,2,2),c,d;
    a.toString();
    b.toString();
    c=a+b;
    cout<<"suma: ";
    c.toString();
    cout <<"iloczyn skalarany: "<<a*b << "\tstopnie: " <<atan(a*b)*(180.0/M_PI)<<endl;
   d=a/b;
   cout<<"iloczyn wektorowy: ";
    d.toString();
    return 0;
}