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14 lines
215 B
Perl
14 lines
215 B
Perl
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#!/usr/bin/env perl
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use strict;
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use warnings;
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my %terms;
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while (<STDIN>) {
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foreach my $term (split /\b/, $_) {
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$terms{$term} = 1 if $term =~ /^L[0-9A-F]{4}$/;
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}
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}
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print scalar(keys %terms), "\n";
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