One cute thing is that all the false negatives (or false positives) are actually solution spaces. So, Abigail-II's solution of 200.0.0.1 actually is the solution space containing the elements 200, 0, 0, and 1. So, 1.200.0.0 also is a false negative (for the same reason). (The symmetry is caused by the bit-wise OR, not by the issue at hand.)

As for fixes ... I would think that this should be something Perl5 should handle through dwimmery (and something it seems that Perl6 will be handling more intelligently, at least according to TheDamian's discussion on sorting ...)

(And, if I get dinged on providing too much of a hint, at least I got someone interested in the differences between Perl5 and Perl6's sorting ... *grins*)

------
We are the carpenters and bricklayers of the Information Age.

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.

In reply to Re: Can you spot the problem? by dragonchild
in thread Can you spot the problem? by dws

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.