Hi monkey_boy,

Thanks so much for your answer.
However, if there is a repeated substring cases as you mentioned, it should be scored as 4.

Update: With slight modification to your code -by including offset- I managed to accomodate the duplicated case: 
# The snippet below returns Score = 4 for (GG,GG)-case
sub score 
{
  my ($str,$array) = @_;
  my %position_score;
  my $offset = 0;
  
  for my $frag (@{$array}) {
      #my $idx = index($str, $frag) + 1;
      my $idx = index($str, $frag, $offset) + 1;
      
      for my $pos ($idx .. $idx + (length($frag) - 1)) {
             $position_score{$pos} = 1;
      };
      $offset = $idx;
  };

[download]
Regards,
Edward

In reply to Re^2: Substring Distance Problem by monkfan
in thread Measuring Substrings Problem by monkfan

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