From: Erik Terpstra <erik@...>
Date: 2005-11-26T00:52:27+09:00
Subject: Re: recursion

('aaa'..'zzz').to_a

Cheers,

Erik.

cyberco wrote:
> I'm trying to print every combination of three characters from the
> range (a..z). I thought recursion would be the most elegant solution,
> but that got me quite confused :)  Any suggestions? Here's my
> (erronous) attempt:
> 
> ________________________
> 
> def addChar(str, level)
>     ('a'..'z').each {|c|
>         if level == 2
>             puts str + c
>         else
>             str += c
>             addChar(str, level + 1)
>         end
>     }
> end
> 
> addChar("", 0)
>