Puzzle 1:
Explain what the following code does... 
my @list2 = sort keys %{ { map { $_ => 1 } @list1 } };

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(Not sure if this is what you had in mind, and if it's the right level of difficulty. Specify if not.)

In reply to Re: Perl Puzzles by smls
in thread Perl Puzzles by vyeddula

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