Oh great and wise Perl Monks... I have a question, and it is somewhat difficult to phrase, but I will try my best. I need an efficient way to crunch through some data. Here is what it looks like:

Login,Name,Location,Info,Info2,Infoblah

Here is my challenge, I need to be able to store the locations in an array, and then store the users (Logins) associated to that location in an array. In my head, I can kind of picture a hash that has a reference to the site as the key, then an anonymous array to hold the users as the value, but I'm not super experienced at data structures using references. The other challenge that I see is checking to make sure that the array that represents a location is only created once and then making sure that all users after that point get associated with that location.

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