To your problem 20.pl

You also have to declare %seen, so when you write my %seen = (); everything (related to this perl snippet) should be ok.

UPDATE: The same with 19.pl

Best regards
McA

In reply to Re: Help on 16/17/18/19/20 dot pl by McA
in thread Help on 16/17/18/19/20 dot pl by Raymond

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