I'm late on this but here's a version I liked, for brevity:

use strict;
use warnings;

my $str = "aabceezazerrfde";
my %wanted = (a => 7, e => 2, z => 26);
my $tot = 0;
$wanted{$_} && ($tot +=  $wanted{$_}) for (split //, $str);
print "Total $tot\n";

[download]


Better in some circumstances might be:

exists $wanted{$_} && ($tot +=  $wanted{$_}) for (split //, $str);

but I don't think it matters in this case. I discussed mixing "for" and "if" in one line with moritz and shmem recently, and I rather like it, though someone said it was too much logic for one line...

 ($tot +=  $wanted{$_})  if $wanted{$_} for (split //, $str);

never seems to work...

Cheers

In reply to Re: numerology experiment by Muggins
in thread numerology experiment by orange

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.