From: "Brian Schröder" <ruby@...>
Date: 2004-11-19T06:25:48+09:00
Subject: Re: [SUMMARY] Countdown (#7)

On Fri, 19 Nov 2004 01:50:04 +0900
Ruby Quiz <james@grayproductions.net> wrote:
> Those are all single number examples, of course.  Time to think bigger.  What
> about negative numbers?  Our goal is somewhere between 100 to 999.  Negative
> numbers are going the wrong way.  They don't help, so you can safely ignore any
> operation(s) that results in a negative number.

I think that it is correct that if you are only interested in one solution, it is possible to ignore any partial negative results.

But the reason is not that negative results bring us away from the aim, but that we have the subtraction operator to makes up for negative numbers.

Regards,

Brian

-- 
Brian Schr�der
http://www.brian-schroeder.de/