Question

Develop menu- driven c program to

perform following pointer

operations:

1.exchange(swap) values of two

variables

2. add two numbers

guys it's urgent ​

Answer 1

Answer:

/*C program by Chaitanya for beginnersbook.com

* Program to swap two numbers using pointers*/

#include <stdio.h>

// function to swap the two numbers

void swap(int *x,int *y)

{

int t;

t = *x;

*x = *y;

*y = t;

}

int main()

{

int num1,num2;

printf("Enter value of num1: ");

scanf("%d",&num1);

printf("Enter value of num2: ");

scanf("%d",&num2);

//displaying numbers before swapping

printf("Before Swapping: num1 is: %d, num2 is: %d\n",num1,num2);

//calling the user defined function swap()

swap(&num1,&num2);

//displaying numbers after swapping

printf("After Swapping: num1 is: %d, num2 is: %d\n",num1,num2);

return 0;

}