reversehash to accept a hash and return a hash where the roles of keys and vaalues are reversed. that is the key of the key of the input hash becomes the value of the output hash. if there are more than one keys in the input hash has the same value, they are connected by the symbol '|' in output

Originally posted as a Categorized Question.

In reply to how to use reversehash if there are more than one keys same by Anonymous Monk

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