#!/usr/bin/perl
use strict;

my %a=(
AA=>'Y',
BB=>'Y',
CC=>'Y',
DD=>'Y',
EE=>'Y',
FF=>'Y'
);

my @a1=('AA','DD','EE');

my @a2=('AA','BB','CC','FF');

my(@tmp1,@tmp2);


foreach my $xx (sort (keys(%a))) {
    $a = grep (/$xx/, @a1);
    $b =  grep (/$xx/, @a2) ;
    if (($a && $b) || (!$a && !$b)) {
          push (@tmp1,$xx);
          push (@tmp2,$xx);
    } elsif ($a && (!$b)) {
          push (@tmp1,$xx);
          push (@tmp2,'##');
    } elsif (!$a && ($b)) {
          push (@tmp1,'##');
          push (@tmp2,$xx);
    } 
}

print join(',',@tmp1);
print "\n";
print join(',',@tmp2);
print "\n";

[download]

Is there a more perlish way of doing this ?
What i want to do here is create 2 arrays tmp1 and tmp2 whose length is that of the size of (keys of %a) and
if an element exists in both @a1 and @a2 then they will be put to tmp1 and tmp2 ,
If one of the array (a1 or a2)dose'nt contain the key then a ## should be Inserted there,
This is working fine and I just wanted to know if there is anything that can be improved in the code

In reply to Perlish way of doing this by mkirank

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