Hi,

I'm trying to create and array of all possible combinations of entries that are in another array but my logic is not working this morning...
Heres the example:
# First array
# This array could contain any number of items
my @firstArray = ( "item1", "item2", "item3" );

[download]
I'm trying to create the following array of arrays:
# Results array
my @results = (
  [ "item1" ],
  [ "item2" ],
  [ "item3" ],
  [ "item1", "item2" ],
  [ "item1", "item3" ],
  [ "item2", "item3" ],
  [ "item1", "item2", "item3" ]
);
# Note: [ "item1", "item2" ] & [ "item2", "item1" ]
# should be considered as the same.

[download]
Does anyone know how to do this?
Also, if possible, I would like to keep the order of the arrays in the results array from "smallest" to "largest" (in terms of scalar).

Cheers,
Reagen

In reply to array logic by rsiedl

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.