my @dna_chunks = ...;
sub your_test {
my $string = shift;
# do your test here, and return 1 if it passes
}
my @used = grep your_test($_), @dna_chunks;
my $long_string = join '', @used;
print "Used ", scalar(@used), " chunks, ",@dna_chunks - @used, " disca
+red";
See grep for details.
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