// Demonstrating global and local variables.
#include <iostream.h>
void myFunction(); // prototype
int x = 5, y = 7; // global variables
int main()
{
cout << "x from main: " << x << "\n";
cout << "y from main: " << y << "\n\n";
myFunction();
cout << "Back from myFunction!\n\n";
cout << "x from main: " << x << "\n";
cout << "y from main: " << y << "\n";
return 0;
}
void myFunction()
{
int y = 10;
cout << "x from myFunction: " << x << "\n";
cout << "y from myFunction: " << y << "\n\n";
}