//recursion

#include <iostream.h>
#include <iomanip.h>
#include <stdlib.h>

void instruct(void); //instructions function

unsigned long factorial ( unsigned long number);
unsigned long f_out ( unsigned long numb);

int
main(void)
{

	instruct();
for ( int lol = 0; lol <= 50; lol++){
	cout << setw ( 2 ) << lol << "! = " << factorial ( lol ) << setw( 5 ) <<  " = ";
	f_out(lol);
	cout << "n";
	}
	return 0;
}

unsigned long factorial( unsigned long number)
{
	if ( number <= 1) // base case
		return 1;
	else
		return number * factorial( number - 1 );
}

unsigned long f_out( unsigned long numb ) {
if ( numb <= 1 ) {
	cout << "1";
	return 1;}

else {
cout << numb << " * ";
	return ( numb * f_out( numb - 1));
}
}
void
instruct()
{
		cout << "Modify a factorial function to print its local variable and recursive call parameter.nn";
}