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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??

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  1. or download this
    sub permute{
    @r=[];$e=$_,@r=map{@a=@$_;map{@b=@a;splice(@b,$_,0,$e);[@b]}0..@a}@r f
    +or@_;@r
    }
    
  2. or download this
    sub permute{
    @r=[];$e=$_,@r=map{@a=@$_;map[@a[0..$_-1],$e,@a[$_..$#a]],0..@a}@r for
    +@_;@r
    }
    

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