This approach is merges the construction of the %seen hash with the extraction of unique elements.

1. reading elements from @array

2. If the current element ($_) and it is not in the hash (%seen), it will push into @result. Then it stored into hash(%seen). As we know hash will not allow duplicate value

Thanks
Gopal

In reply to Re: Explain the code by gopalr
in thread Explain the code by rose

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