From: Harry Kakueki <list.push@...>
Date: 2009-07-24T13:18:37+09:00
Subject: Re: Is recusion the best?

On Fri, Jul 24, 2009 at 11:47 AM, Li Chen<chen_li3@yahoo.com> wrote:
> Hi all,
>
> I have some codes  implemented with recursion. When the loop/recursion
> number is small  everything looks fine to me. But the program starts
> slow when the loop number is >7.I wonder if recursion is the best when
> the recursion number is >7?
>
>
> Thanks,
>
> Li
>
>

Does this do the same thing?

hash_table=Hash.new(0)
wordsize = 10

(0...4**wordsize).each do |f|
hash_table[f.to_s(4).rjust(wordsize,"0").tr('0123','ACGT')] = f
end

p hash_table


Harry


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