C program to add two numbers using pointers

This program performs addition of two numbers using pointers. In our program we have two two integer variables x, y and two pointer variables p and q. Firstly we assign the addresses of x and y to p and q respectively and then assign the sum of x and y to variable sum. Note that & is address of operator and * is value at address operator.

C programming code

#include <stdio.h>

int main()

{

   int first, second, *p, *q, sum;

   printf("Enter two integers to add\n");

   scanf("%d%d", &first, &second);

   p = &first;

   q = &second;

   sum = *p + *q;

   printf("Sum of entered numbers = %d\n",sum);

   return 0;

}

Output of program:

Enter two integers to add

10

5

Sum of entered numbers = 15

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