that's what you are looking for?

  DB<253> @a{a..c}=1..3
 => (1, 2, 3)

  DB<254> @b{b..d}=6..8
 => (6, 7, 8)

  DB<255> $c{$_}=$a{$_}+$b{$_} for (keys %a,keys %b)
 => ""

  DB<256> \%c
 => { a => 1, b => 8, c => 10, d => 8 }

[download]

NB: you might need to set no warnings 'uninitialized' in a scope surrounding line 255.

Cheers Rolf

(addicted to the Perl Programming Language and ☆☆☆☆ :)

update

I just noticed that, while producing correct results, this code will be a bit redundant, cause it repeats operations (here for b and c)

If this is really an issue, do an exists $c{$_} check before adding or apply uniq from List::MoreUtils.

In reply to Re: perl to add results of 2 arrays from 2 files together. by LanX
in thread perl to add results of 2 arrays from 2 files together. by john.tm

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.