This code may give idea to you 

my @a = (1,23,451,289,5);
my @b = (341,561,5,67,78,891);
&func( \@a);
&func (\@b);

sub func(){
    my @myarray = @{$_[0]};
    my $max;
    my $index;
    my $x = 0;
    for ( @myarray )
    {
            if (!defined $max or $_ > $max ){
            $index = $x ; 
            $max = $_;
            }
        $x++;
    }
    print "The greatest is element number $index: $myarray[$index]\n";

}

[download]

Output

The greatest is element number 2: 451

The greatest is element number 5: 891

In reply to Re: Find column number for the row-wise max value by ashokpj
in thread Find column number for the row-wise max value by jaksow

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.