From: tamouse mailing lists <tamouse.lists@...>
Date: 2013-02-27T13:47:38+09:00
Subject: Re: Please, help (GCD) greatest common divisor.

On Tue, Feb 26, 2013 at 12:48 PM, Bartosz Dziewoński
<matma.rex@gmail.com> wrote:
> Best I could do on short notice:
>
> gcd=->(_){_.sort_by(&:-@).inject{|p,q|q.nonzero?&&gcd[[q,p-q]]||--p}}
> $/=' ';gets;puts gcd[[$_,gets].map &(method :Integer)]
>
> --
> Matma Rex
>

OMG this is gorgeous.