If I'm reading this correctly, you want the numbers 0-32 in a random order? If so, what you have is not the way to go. What you want to do is shuffle; otherwise, as you've seen, you could go on forever and not complete.

-derby

Update: There are some good replies below but I'm I the only one having a problem with 

while(1) {
  $rand = int(rand(32));
  ...
}

[download]
while the comments about 4 never getting into the list if 14 is all ready in the list are valid ... there's also the quite real possiblity of 4 never being returned from rand! Or at the very least you may get a large number of duplicate 14s before you ever get the chance to grep (validly) for 4. Shuffling is definitely what you want if what you want is 0-32 in a random order.

In reply to Re: How much random is rand()? by derby
in thread How much random is rand()? by gmoque

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.