Peter:
The code is not a production project!!! It is not total nonsense in the idea of a fun time. I stated the compiler environment !!! The z value is 0 or 1.

Do you think I would write some "real" program this way?? Of course not. I wrote this in a way to obfusticate the algorithm and get some people (those who might be interested) to think through this as a puzzle.

Michael Karas