Sum and Difference of Two Numbers Using Pointers in C

A simple program that I wrote using C language that will ask the user to give two numbers and then the program will compute the sum and difference of the two numbers using pointers in C.

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Sample Program Output

Program Listing

/* add_subtract.c

   Author   : Jake Rodriguez Pomperada,BSCS,MAED-IT

   Date     : November 27, 2018  Monday  9:21 PM

   Location : Bacolod City, Negros Occidental

   Tool     : Dev C++ Version 5.11

   Website  : http://www.jakerpomperada.com

   Email    : jakerpomperada@jakerpomperada.com and jakerpomperada@gmail.com

*/

#include <stdio.h>

 

int main()

{

   int first=0, second=0;; 

   int *a,*b;

   int sum=0;

   int difference=0;

   printf("\n\n");

   printf("\tSum and Difference of Two Numbers");

   printf("\n\n");

   printf("\tGive Two Numbers : ");

   scanf("%d%d",&first,&second);

   a = &first;

   b = &second;

  sum = (*a + *b);

  difference = (*a - *b);

  printf("\n\n");

  printf("\t===== DISPLAY RESULTS =====");

  printf("\n\n");

  printf("\tThe sum of %d and %d is %d."

          ,first,second,sum);

  printf("\n\n");   

  printf("\tThe difference between %d and %d is %d."

          ,first,second,difference);     

  printf("\n\n");

  printf("\tEND OF PROGRAM");

  printf("\n\n");

 }