//C program to demonstrate
//addition of complex numbers
#include <stdio.h>

// define a structure for complex number
typedef struct complexNumber{
    int real;
    int img;
} complex;


complex add(complex x,complex y)
{
    //define a new complex number.
    complex add;

    //add similar type together
    add.real=x.real+y.real;
    add.img=x.img+y.img;

    return(add);
}

int main() 
{
    
    //define three  complex type numbers
    complex x,y,sum;

    //first complex number
    x.real=4;
    x.img=5;

    //second complex number
    y.real=7;
    y.img=11;

    //printing both complex Numbers
    printf("x=%d+%di\n",x.real,x.img);
    printf("y=%d+%di\n",y.real,y.img);

    //call add(a,b) function and
    //pass complex numbers a and b
    //as an parameter
    sum=add(x,y);

    //print result
    printf("\n sum=%d+%di",sum.real,sum.img);
    return 0;
}