#include <stdio.h>
void value(int *a) //passing pointers as arguments
{
    *a = 0;
}

int main()
{
    int x = 20;
    printf("Before calling the function x: %d\n", x);
    //function call
    value(&x); 
     //value of x is changed
    printf("After calling the function x: %d\n", x);

    return 0;
}

//..........Coded by Ananya Maurya