//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;

//This function accepts two complex numbers
//as parameter and return addition of
//them.
complex add(complex x,complex y);

//Driver Code
int main() 
{
    //Define three complex type numbers
    complex a,b,sum;

    //First complex number
    a.real = 2;
    a.img = 3;

    //Second complex number
    b.real = 4;
    b.img = 5;

    //Print first complex number
    printf("\n a =%d +%di", a.real, a.img);

    //Print second complex number
    printf("\n b =%d +%di", b.real, b.img);

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

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

//Complex add(complex x,complex y)
//function definition
complex add(complex x,complex y)
{
    //Define a new complex number.
    complex add;

    //Add real part of a&b
    add.real=x.real+y.real;

    //Add Imaginary part of a&b
    add.img=x.img+y.img;

    return(add);
}