I make your original 79 chars. 

sub a {

return$i if$_[0]==495;$a=join'',sort{$a<=>$b}split//,pop;$i++;a((rever
+se$a)-$a)
#23456789_123456789_123456789_123456789_123456789_123456789_123456789_
+123456789

}

[download]

if you are sorting single digits then perl's default alphanumeric sort will give the same result as explicitly defining a numeric sort. #71

update: just realised you can use $_ instead of $a. #69

"Argument is futile - you will be ignorralated!"

In reply to Re: (Golf) Kaprekar's Process by larryk
in thread (Golf) Kaprekar's Process by srawls

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