// @(#)$Id: extra.txt,v 1.3 1997/06/03 23:06:53 leavens Exp $

(a)
Specify a C++ function, fact, that computes
an approximation to the factorial of an unsigned int, returning a  double.
That is, you should use the following C++ interface

	double fact(unsigned int n) throw();

(b)
Specify a C++ factorial function with the following interface.

	int fact(int n) throw();

Compare your specification to the specification when the parameters
are unsigned ints.