#!/usr/bin/perl -l

use strict;
use warnings;
use Devel::Size qw/total_size/;

#my @array1 = (1,2,3,4,5);
#my @array2 = (6,7,8,9,10);
#my @array3 = (11,12,13,14,15);

my @array1 = (1 .. 100001);
my @array2 = (100001 .. 200001);
my @array3 = (200001 .. 300000);

print total_size(\@array1);
print total_size(\@array2);
print total_size(\@array3);

print "-" x 10;

my @which;
$which[$_] = "array1" for @array1;
$which[$_] = "array2" for @array2;
$which[$_] = "array3" for @array3;

print total_size(\@which);

print "-" x 10;

my %which;
do { push @{ $which{$_} } => "array1" } for @array1;
do { push @{ $which{$_} } => "array2" } for @array2;
do { push @{ $which{$_} } => "array3" } for @array3;

print total_size(\%which);