Timings

Several interesting ideas are in the replies. The timings for one million random pairs of words from and English dictionary are:

11.617664 secs for the code which I just tried shown below.
12.778731 secs for the code id=835331 in the first post by me.
15.012858 secs for the code id=835332 by moritz.
18.555034 secs for the code id=835347 by BrowserUk.
75.051250 secs for the code id=835372 by LanX. 

sub included{ 
  my %h;
  $h{$_}++ for split //,$_[1];
  for (split //,$_[0]) { return 0 if --$h{$_} < 0 }
  return 1;
}

[download]

Interesting that in this last instance, creating a hash every time, is still faster than the other methods. I made all the above codes into subs, and otherwise tried to keep the code identical to what has been posted.

In reply to Re: Check if a word is included in another by b4swine
in thread Check if a word is included in another by b4swine

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.