oops exp5 r.p

#include<iostream.h>
class complex1;
class complex
{
    int re,img;
public:
    complex()
    {
        re=0;
        img=0;
    }

    complex(int x=1,int y=1)
    {
        re=x;
        img=y;
    }

    ~complex()
    {
        cout<<"deleted objects of class complex\n";
    }

    friend void add(complex,complex1);
};

class complex1
{
    int re1,img1;
public:
    complex1()
    {
        re1=0;
        img1=0;
    }

    complex1(int x=6,int y=6)
    {
        re1=x;
        img1=y;
    }

    complex1(complex1 &x)
    {
        re1=x.re1;
        img1=x.img1;
    }

    ~complex1()
    {
        cout<<"deleted objects of class complex1\n";
    }

    friend void add(complex,complex1);
};

void add(complex a,complex1 b)
{
    cout<<"the addition of ("<<a.re<<")+i("<<a.img<<")  +  ("<<b.re1<<")+i("<<b.img1;
    cout<<") = ("<<(a.re+b.re1)<<")+i("<<(a.img+b.img1)<<")\n";
}

int main()
{
    int a,b,c,d;
    cout<<"addition of two complex nos:\n";
    cout<<"enter the real and imaginary values of 1st number:\n";
    cout<<"real part= ";
    cin>>a;
    cout<<"complex part= ";
    cin>>b;
    cout<<"enter the real and imaginary values of 2st number:\n";
    cout<<"real part= ";
    cin>>c;
    cout<<"complex part= ";
    cin>>d;
    complex x(a,b),y(x);
    complex1 p(c,d),q(c);
    cout<<"using parameterized constructors\n";
    add(x,p);
    cout<<"using copy and default construction\n";
    add(y,q);
    return 0;
}