/* a little recursion... */

#include<stdio.h>

double fact(double);

int main()
{
	float i, j;

	printf("Enter a number\n");
	scanf("%f", &i);

	j = fact(i);
	printf("%f factorial is %f\n", i, j);
}

double fact(double n)
{
	if (n == 1.0)
		return 1.0;
	else
		return (n * fact(n - 1.0));
}