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Code

Program to add, subtract, multiply and divide two numbers

Trial

 Write a program to add, subtract, multiply and divide two numbers using pointers and print the addresses of all the variables.


#include <stdio.h>


int main() {

  int num1, num2, sum, difference, product, quotient;

  int * ptr_num1, * ptr_num2, * ptr_sum, * ptr_difference, * ptr_product, * ptr_quotient;

  // Assign addresses of variables to pointers

  ptr_num1 = & num1;

  ptr_num2 = & num2;

  ptr_sum = & sum;

  ptr_difference = & difference;

  ptr_product = & product;

  ptr_quotient = & quotient;

  // Input two numbers

  printf("Enter first number: ");

  scanf("%d", ptr_num1);

  printf("Enter second number: ");

  scanf("%d", ptr_num2);

  // Print addresses of all variables

  printf("\nAddresses of variables:\n");

  printf("Address of num1: %p\n", ptr_num1);

  printf("Address of num2: %p\n", ptr_num2);

  printf("Address of sum: %p\n", ptr_sum);

  printf("Address of difference: %p\n", ptr_difference);

  printf("Address of product: %p\n", ptr_product);

  printf("Address of quotient: %p\n", ptr_quotient);

  // Perform arithmetic operations using pointers

  * ptr_sum = * ptr_num1 + * ptr_num2;

  * ptr_difference = * ptr_num1 - * ptr_num2;

  * ptr_product = * ptr_num1 * * ptr_num2;

  if ( * ptr_num2 != 0)

    *

    ptr_quotient = * ptr_num1 / * ptr_num2;

  // Print results

  printf("\nResults:\n");

  printf("Sum: %d\n", * ptr_sum);

  printf("Difference: %d\n", * ptr_difference);

  printf("Product: %d\n", * ptr_product);

  if ( * ptr_num2 != 0)

    printf("Quotient: %d\n", * ptr_quotient);

  else

    printf("Error! Division by zero is not allowed.\n");

  return 0;

}

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