Разработать класс

#include <stdio.h>
 
class Vector
{
public:
    Vector();
    Vector(int,int);
    int x,y;
    Vector operator *(int C);
    Vector operator -(Vector &A);
    void VectorPrint();
    void VectorSet(int,int);
};
 
Vector::Vector()
{
    x=0;y=0;
}
 
Vector::Vector(int X,int Y)
{
    x=X;y=Y;
}
 
Vector Vector::operator *(int C)
{
    Vector temp;
    temp.x=this->x*C;
    temp.y=this->y*C;
    return temp;
}
 
Vector Vector::operator -(Vector &A)
{
    Vector temp;
    temp.x=this->x-A.x;
    temp.y=this->y-A.y;
    return temp;
}
 
void Vector::VectorPrint()
{
    printf("x=%i, y=%i\n",this->x,this->y);
}
 
void Vector::VectorSet(int X,int Y)
{
    this->x=X;
    this->y=Y;
}
 
int main(int argc, char *argv[])
{
     Vector A;
     printf("vector A(default): ");
     A.VectorPrint();
     Vector B(3,4);
     printf("vector B: ");
     B.VectorPrint();
     Vector C=B*6;
     printf("vector C=B*6: ");
     C.VectorPrint();
     B.VectorSet(78,56);
     printf("vector B set to 78,56: ");
     B.VectorPrint();
     A=B-C;
     printf("vector A=B-C: ");
     A.VectorPrint();
}