you want to look at hash slice syntax. Make a hash table mapping the original to the transform like so: 
   @hash{@original} = @original

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work with them in the order you want 
   dosomethingto($_) for @hash{@sortedoriginal}

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then get the transformed results as 
   @hash{@original}

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In reply to Re: Restore the original order of an array after sort and performing some funchtion on array values by davidnicol
in thread Restore the original order of an array after sort and performing some funchtion on array values by sesemin

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