Yes you use a hash to count the occurences, sort on the values of this and print it. 

my @ary = qw ( a a a a a b b b c c c c c c d d d d );

# use a hash to count occurrences
my %pop;
$pop{$_}++ for @ary;

# sort hash on values, store sorted keys in array
my @pop_sort = sort { $pop{$b} <=> $pop{$a} } keys %pop;

# now print most popular
print "Most popular $pop_sort[0]\n";
print "Least popular $pop_sort[-1]\n";

# show hash
print "Key  Count\n";
for my $key (@pop_sort) {
    print "$key => $pop{$key}\n";
}

[download]

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: finding the most popular in array by tachyon
in thread finding the most popular in array by Anonymous Monk

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.