http://www.perlmonks.org?node_id=302483


in reply to Re: (Golf) Nearest Neighbors
in thread (Golf) Nearest Neighbors

Just saw this thread. Here is a destructive (only works once) solution at 46:

sub nn{$a|=$"x$_.1for@_;$b.=$"until$a=~/1$b(1)/;@a=@-}

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Re: Re: Re: (Golf) Nearest Neighbors
by thospel (Hermit) on Oct 27, 2003 at 19:34 UTC
    Ah, I should think a bit more before submitting. Here is a 44 (and I should also mention it only works for smallish natural numbers, all different and at least 2 arguments):

    sub nn{$a|=2x$_.3for@_;$b.=2until$a=~/3$b(3)/;@a=@-}

    The need for the assign is a perlbug, otherwise it would be 41