variable_scope_4.c

#include <stdio.h>
#include <cs50.h>

string my_function(string s);

string global = "SUPERMAN!";

int main(void)
{
    // Passing global as an argument
    // changes the output because
    // we are passing by value.
    global = "FLASH";
    
    my_function(global);
    
    printf("the global variable is %s\n", global);
}

string my_function(string s)
{
  s = "BATMAN!";
  
  return s;
}