Copyright (c) 1989-1996 by Gary T. Leavens.
Permission is granted for you to make copies for educational and scholarly
purposes, but not for direct commercial advantage, provided this notice
appears on all copies.  All other rights reserved.

No guarantees or warranty for anything here.

If you want to work these old problems, then you'll need
the sources from the book, which you can get from the authors
or use the course library, which you can get from
	http://www.cs.iastate.edu/~leavens/ComS227/lib