I need to produce a merged list. List1 contains all of List2 but in a different format. I have used regex to cull out what I need, but its an impractical approach as im iterating over List2 again and again. So, is there a more elegant solution to do this? Im fairly stumped.
#!/usr/bin/perl

use strict;
use warnings;
#
my @CS_CHECKS = ( '00012345', 'D123470', '0000123450', '0000023456', '
+50000123990' );
my @B_CHECKS = ( '1234', '12345', '123990', '12399' );
my %seen;
for my $cn ( @CS_CHECKS )
{
    for my $bn ( @B_CHECKS )
    {
        if ( $cn =~ /^(0|5|6)0+\Q$bn\E$/ )
        {
            print "$bn = $cn\n";
        }
    }

}

[download]
Ted
--
"That which we persist in doing becomes easier, not that the task itself has become easier, but that our ability to perform it has improved."
  --Ralph Waldo Emerson

In reply to Merged list with regex matches by tcf03

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