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From: Luke Blanshard <l...@blanshard.us>
Newsgroups: comp.lang.ruby
Subject: Re: #63: Grid Folding
Date: Wed, 25 Jan 2006 09:17:23 +0900
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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