From: Daniel Martin <martin@...>
Date: 2006-08-11T23:16:53+09:00
Subject: Re: Codegolf - Pascals Triangle

Michael Ulm <michael.ulm@isis-papyrus.com> writes:

> My take on the latest problem from http://www.codegolf.com
>
> a=[]
> 34.times{k=0;puts (a.map!{|i|k+k=i}<<1).join(" ")}
>
>
> 56 bytes.

I think this may be very close to minimal - no approaches I tried got
this small.  Note that you can slightly improve readability (but with
no change in character count) with:

a=[]
34.times{k=0;a.map!{|i|k+k=i}<<1;puts a.join(" ")}

Then there's removing the parentheses around the argument to join, but
that generates a warning that probably means you fail their test.