Write a class to store x, y and z coordinates of a point in three dimensional spaces. Using operator overloading write friend function to add and subtract the vectors.

Code:

#include

#include

class friends

{

            int x,y,z;

            public:

            friends ()

            {

                        x=y=z=0;

            }

            void display()

            {

                        cout<<"("<

            }

            void get()

            {

                        cout<<"\nEnter coordinates(X,Y,Z):";

                        cin>>x>>y>>z;

            }

            friend friends operator+(friends,friends);

            friend friends operator-(friends,friends);

};

friends operator +(friends f1,friends f2)

{

            friends k;

            k.x=f1.x+f2.x;

            k.y=f1.y+f2.y;

            k.z=f1.z+f2.z;

            return k;

}

friends operator -(friends f1,friends f2)

{

            friends l;

            l.x=f1.x-f2.x;

            l.y=f1.y-f2.y;

            l.z=f1.z-f2.z;

            return l;

}

int main()

{

            clrscr();

            friends f1,f2,f3,f4;

            f1.get();

            f2.get();

            f3=f1+f2;

            cout<<"\nUsing + operator:";

            f3.display();

            cout<<"\nUsing - operator:";

            f4=f1-f2;

            f4.display();

            getch();

            return 0;

}