C program to add two complex numbers:

#include <stdio.h>

struct complex

{

int real, img;

};

 

int main()

{

struct complex a, b, c;

 

printf(“Please enter first complex number\n”);

printf(“Enter Real part of the 1st complex number\n”);

scanf(“%d”, &a.real);

printf(“Enter Imaginary part of the 1st complex number without i\n”);

scanf(“%d”, &a.img);

printf(“Please enter second complex number\n”);

printf(“Enter Real part of the 2nd complex number\n”);

scanf(“%d”, &b.real);

printf(“Enter Imaginary part of the 2nd complex number without i\n”);scanf(“%d”, &b.img);

 

c.real = a.real + b.real;

c.img = a.img + b.img;

 

if ( c.img >= 0 )

printf(“The sum of two complex numbers = %d + %di\n”,c.real,c.img);

else

printf(“The sum of two complex numbers = %d %di\n”,c.real,c.img);

 

return 0;

}

Output:

Please enter first complex number

Enter Real part of the 1st complex number

2

Enter Imaginary part of the 1st complex number without i

4

Please enter second complex number

Enter Real part of the 2nd complex number

6

Enter Imaginary part of the 2nd complex number without i

8

The sum of two complex numbers = 8 + 12i