Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

Re: (Golf) Per Mutations

by Masem (Monsignor)
on May 04, 2001 at 03:03 UTC ( #77830=note: print w/ replies, xml ) Need Help??


in reply to (Golf) Per Mutations

57!

#!/usr/bin/perl -w use strict; use Data::Dumper; my @b = p(1,2,3,4); print Dumper( @b ); sub p { $#_<1?[@_]:map{my$a=$_;map{[$a,@$_]}p(grep{$_!=$a}@_)}@_ }


Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain


Comment on Re: (Golf) Per Mutations
Download Code
Re: Re: (Golf) Per Mutations
by MeowChow (Vicar) on May 04, 2001 at 03:46 UTC
    Awesome :) We can even bring that down to 49:
    sub p { @_?map{my$a=$_;map[$a,@$_],p(grep$_!=$a,@_)}@_:[] }
       MeowChow                                   
                   s aamecha.s a..a\u$&owag.print
      Make that 48:
      sub p { @_?map{my$a=$_;map[$a,@$_],p(grep$_^$a,@_)}@_:[] }
Re (tilly) 2: (Golf) Per Mutations
by tilly (Archbishop) on May 04, 2001 at 04:29 UTC
    Didn't the rules say arbitrary list? Try this with the list (1,2,3,1) and you get incorrect output.

    However here is another 57 char solution that does not suffer from this deficiency.

    sub p{ @_?map{my$x=shift;@r=map[$x,@$_],&p;push@_,$x;@r}1..@_:[] }

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://77830]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (7)
As of 2014-12-25 19:29 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (162 votes), past polls