Selection differences -> adds and removes

[Matt Sergeant]

On 14 Nov 2005, at 16:15, Lusercop wrote:

> On Mon, Nov 14, 2005 at 06:22:45PM +0000, Jacqui Caren wrote:
>> A pretty standard problem.
>> I have a current set of integers (1,2,15)
>> and a updated set of integers (1, 4,15,19)
> [...]
>> Is there a perl module that holds such a utility function?
>
> Algorithm::Diff
> http://search.cpan.org/~tyemq/Algorithm-Diff-1.1901/lib/Algorithm/ 
> Diff.pm

Will the list get large? Algorithm::Diff requires the list fits into  
ram.

An alternate algorithm (if it won't fit into ram) exists for sorted  
data and it's probably faster than Algorithm::Diff.


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