What's the easiest way to scan through an array or hash built with numbers (in a hash, the keys are numbers) and determine what the highest number is? For unique keys (I know other people will suggest other methods but this is what I chose and I like this method), I used numbers and to be sure I never accidently screw up I need to make sure it's +1 the greatest number it finds.

Can't just $num++ because I delete some hash keys/array values and doing so, the count would mess up and I'd overwrite hash keys. So I need to know the largest number in a hash (would be nice to know how this would work for an array as well, but it's probably the same thing) so I can add to it.

Thanks wise monks.

In reply to largest number inside array/hash 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.