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Another tweak should improve performance again:

#! perl -slw use strict; my @words = do{ local @ARGV = 'words.txt'; <> }; chomp @words; my $all = join ' ', @words; my $start = time; for my $i ( @words ) { while( $all =~ m[ ([^ ]*$i[^ ]*) ]g ) { my $j = $1; next if $j eq $i or $j eq "${i}s" or $j eq "${i}'s"; print "$j contains $i"; last; ## Added } } printf STDERR "Took %d seconds for %d words\n", time() - $start, scalar @words;

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re^6: Words in Words by BrowserUk
in thread Words in Words by sarchasm

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