my $c1  = 0;
   $c1 += 1 for @array;

my $c2  = grep {$_ || !$_} @array;

my $c3 = 0;
L1: goto L2 unless @array % 2;
    $c3++;
    pop @array;
L2: goto L3 unless @array;
    $c3 *= 2; 
    splice @array, 0 @array / 2;
    goto L1;
L3:

my $c4 = do {local $" = "+"; eval "@{[map {1} @array]}"};

my $c5 = length join "", map " ", @array;

use POSIX 'ceil';
my $c6 = ceil((length join " ", map "", @array)/2);

my $c7 = 0;
$c7++, shift @array while @array;