#!/usr/bin/perl
use warnings;
use strict;
sub check_same (\@\@);
my @a = (1, 2, 3, 4, 5);
my @b = (1, 2, 4, 5, 6);
my @c = (1, 2, 3, 4, 5);
print "\@a is the same as \@b" if check_same(@a,@b);
print "\@a is the same as \@c" if check_same(@a,@c);
sub check_same (\@\@) {
    my ($ref_one, $ref_two) = @_;
    
    return 0 unless @$ref_one == @$ref_two;
    for my $elem (0..$#$ref_one) {
        return 0 unless $ref_one->[$elem] eq $ref_two->[$elem];
    }
    
    return 1;
}