From: Luke Blanshard <luke@...>
Date: 2006-01-25T09:17:23+09:00
Subject: Re: #63: Grid Folding

Vladimir Agafonkin wrote:

>Of four solutions submitted so far, Luke's performs the best (2 times
>better than the nearest neighbour - mine) - and the code is very clear
>and easy to understand for a newbie like me. Great work!
>  
>
Wow, that's excellent.  I would have thought that the prepending 
("unshift") I do would have slowed things down.  But I do reuse all the 
arrays wherever possible, and that probably makes the difference.

Now I'm working on a variant of Greg Seidman's approach.  It should be 
lots faster yet, but the tradeoff is it's much less clear.

Luke