#include <stdio.h>/* a void function returns nothing */void
stars2 (int n)
{
int i;/* a loop displaying a star at
each iteration */
for (i=1; i<=n; ++i)
{
printf ("*");
}
/* change line after each series */
printf ("\n");
}
int
main (void)
{
int a;
a=10;
/* the argument may be a constant, a variable or an expression */
stars2 (20);
stars2 (a);
stars2 (a+2);
return (0);
}