With use warnings it gives a Use of uninitialized value in string eq at... warning. Small off-by-one error.

Replacing 

   push @tmp, $a[$_]
      if ( $a[$_ + 1]) eq ( $b[$map{$a[$_]} + 1] )
         or @tmp >= 1;

[download]
with 
    push @tmp, $a[$_]
      if ($a[$_ + 1] and $b[$map{$a[$_]} + 1]
          and ( $a[$_ + 1]) eq ( $b[$map{$a[$_]} + 1] )
          or @tmp >= 1);

[download]
makes Perl happy again.

Arjen

In reply to Re: Re: Finding largest common subset in lists? by Aragorn
in thread Finding largest common subset in lists? by anjiro

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