Hello lakshu,

Welcome to the Monastery. Although the fellow Monks have answered your question I would like to add something small here.

Just for reference your question was asked before Finding the max()/min(). If you are interested in efficiency between List::Util core module and also the List::MoreUtils which is not a core module. Sample bellow:

#!/usr/bin/perl
use strict;
use warnings;
use List::Util qw( min max );
use List::MoreUtils qw( minmax );
# use Benchmark qw(:all) ; # WindowsOS
use Benchmark::Forking qw( timethese cmpthese ); # UnixOS

sub simpleUtil {
    my (@numbers) = @_;
    my $min = min @numbers;
    my $max = max @numbers;
    return $min, $max;
}

sub moreUtil {
    my (@numbers) = @_;
    my ($min, $max) = minmax @numbers;
    return $min, $max;
}

my @test_array = (3,6,7,6,3,10,5,6,2,10);

my $results = timethese(1000000000, { SimpleUtil => simpleUtil(@test_a
+rray),
                      MoreUtil => moreUtil(@test_array), }, 'none');
cmpthese( $results );

__END__

$ perl test.pl
                  Rate         10          2 SimpleUtil
10         278551532/s         --       -31%       -57%
2          406504065/s        46%         --       -37%
SimpleUtil 645161290/s       132%        59%         --
[download]

Hope this helps, BR.