On Mon, 4 Feb 2002 11:30:08 +0900, Nobumi Iyanaga wrote:
>If, for example I hava a list of page numbers like this:
>
>(343, 512, 71, 562, 346, 345, 513, 561, 563, 343, 513, 549, 562, 71, 76,
>345, 510, 563)
I've been wondering about this. How on earth did you get to this list?
I'm in the same line of business, and the way I'd do it, is:
# foreach $keyword, $page pair:
$index{$keyword}{$page}++;
# end foreach pair
and thus, to get a proper list for each keyword, I just need to do:
my $string = join ', ', sort { $a <=> $b }
keys %{$index{$keyword}};
(The hash values don't matter.)
As you can see: no duplicates.
My guess is that you started out with a push() onto an array, per page.
--
Bart.
