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Re (tilly) 2: (Golf) Per Mutations

by tilly (Archbishop)
on May 04, 2001 at 19:16 UTC ( #77981=note: print w/ replies, xml ) Need Help??


in reply to Re: (Golf) Per Mutations
in thread (Golf) Per Mutations

Non-recursive, handles repeated elements?
sub permute{ @r=[];$e=$_,@r=map{@a=@$_;map{@b=@a;splice(@b,$_,0,$e);[@b]}0..@a}@r f +or@_;@r }
77 chars...

UPDATE
75...

sub permute{ @r=[];$e=$_,@r=map{@a=@$_;map[@a[0..$_-1],$e,@a[$_..$#a]],0..@a}@r for +@_;@r }

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