It sounds to me like you would benefit by working through perlfaq4 -- Data Manipulation. Theres some excellent code snippets in there for all manner of data structure issues, including this one (How do I look up a hash element by value?)

Yves / DeMerphq
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Writing a good benchmark isnt as easy as it might look.

In reply to Re: Reorganising a Hash for Output by demerphq
in thread Reorganising a Hash for Output by arunhorne

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