use strict;
use warnings;
use Benchmark qw(cmpthese);

my $rec = ['xyz10', 'abc0', 'axy1', 'xab02'];

my ($ok, $no) = OP ($rec);
print "OP:\n  " . join ", ", @$ok;
print "\n  " . join ", ", @$no;

($ok, $no) = GF ($rec);
print "\nGF:\n  " . join ", ", @$ok;
print "\n  " . join ", ", @$no;

($ok, $no) = Fletch ($rec);
print "\nFletch:\n  " . join ", ", @$ok;
print "\n  " . join ", ", @$no;

($ok, $no) = JDPorter ($rec);
print "\nJDPorter:\n  " . join ", ", @$ok;
print "\n  " . join ", ", @$no;

($ok, $no) = Tanktalus ($rec);
print "\nTanktalus:\n  " . join ", ", @$ok;
print "\n  " . join ", ", @$no;

($ok, $no) = Roy ($rec);
print "\nRoy:\n  " . join ", ", @$ok;
print "\n  " . join ", ", @$no;

print "\n\n";
cmpthese
  (
  -1,
    {
    'OP' => sub {OP ($rec)},
    'GF' => sub {GF ($rec)},
    'Fletch' => sub {Fletch ($rec)},
    'JDPorter' => sub {JDPorter ($rec)},
    'Tanktalus' => sub {Tanktalus ($rec)},
    'Roy' => sub {Roy ($rec)},
   }
  );
  
  
sub OP
{
my $rec = shift;
my @ok = grep { $_ =~ m/[0-9][0-9]$/ }@$rec;
my @no = grep { $_ !~ m/[0-9][0-9]$/ }@$rec;
return (\@ok, \@no);
}


sub GF
{
my $rec = shift;
my (@ok, @no);
map {/[0-9][0-9]$/ ? push @ok, $_ : push @no, $_} @$rec;
return (\@ok, \@no);
}


sub Fletch
{
my $rec = shift;
my (@ok, @no);
push @{/\d{2}$/ ? \@ok : \@no}, $_ for @{$rec};
return (\@ok, \@no);
}


sub JDpart (&$@)
{
my $condition = shift;
my $receivers_ar = shift;
push @{ $receivers_ar->[ &$condition ] }, $_ for @_;
@$receivers_ar
}

sub JDPorter
{
my $rec = shift;
my (@ok, @no);
JDpart {/[0-9][0-9]$/ ? 0 : 1 } [\@ok, \@no], @$rec;
return (\@ok, \@no);
}


sub Tpart (&@) {
    my ($condition, @array) = @_;

    my (@true, @false);
    foreach (@array) {
        if ( $condition->() ) {
            push @true, $_;
        }
        else {
            push @false, $_;
        }
    }
    return \@true, \@false;
}


sub Tanktalus
{
my $rec = shift;
my ($ok, $no) = Tpart {m/[0-9]{2}$/} @$rec;
return ($ok, $no);
}


sub Roy
{
my @no;
my @ok = grep {/[0-9][0-9]$/ or !push(@no, $_) }@{$rec};
return (\@ok, \@no);
}
[download]

OP:
  xyz10, xab02
  abc0, axy1
GF:
  xyz10, xab02
  abc0, axy1
Fletch:
  xyz10, xab02
  abc0, axy1
JDPorter:
  xyz10, xab02
  abc0, axy1
Tanktalus:
  xyz10, xab02
  abc0, axy1
Roy:
  xyz10, xab02
  abc0, axy1
[download]