Q49.c

//Swap 2 numbers using Call by Value AND Call by reference
//Swap 2 numbers using Call by Value AND Call by reference
include <stdio.h>


void swap(int * num1, int * num2);

int main()
{
    int num1, num2;

   
    printf("Enter two numbers: ");
    scanf("%d%d", &num1, &num2);

   
    printf("Before swapping in main n");
    printf("Value of num1 = %d \n", num1);
    printf("Value of num2 = %d \n\n", num2);

   
    swap(&num1, &num2);

    
    
    printf("After swapping in main n");
    printf("Value of num1 = %d \n", num1);
    printf("Value of num2 = %d \n\n", num2);

    return 0;
}


void swap(int * num1, int * num2)
{
    int temp;

 
    temp = *num1;

    
    *num1= *num2;

  
    *num2= temp;

    printf("After swapping in swap function n");
    printf("Value of num1 = %d \n", *num1);
    printf("Value of num2 = %d \n\n", *num2);
}