Returning Lowest Number Not In Array

From:	Mike Potter	Date:	Thu, 03 May 2001 13:28:01 +0000
Subject:	Returning Lowest Number Not In Array
Groups:	php.general
Request:	Send a blank email to php-general+get-51264@lists.php.net to get a copy of this message

Hi all: I'm hoping someone can help me out with this array problem. I'm trying to find the lowest number which is not in the array. For example:

Given this array :            return this:

(0, 0)                        1
(1,0)                        2
(1,2,0)                    3
(3,0)                        1
(1, 3)                        2

Does anyone have any code, or any hints on how to go about this? I've worked on it for a few hours, and am really stuck. Thanks, Mike Mike Potter OEone Corp. http://www.oeone.com