Program to Add Two Complex Numbers

// 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) function C Program to
// Add Two Complex numbers. This function accepts two
// complex type numbers as parameter as 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 & 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
	return (add);
}