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I'm not sure that its more efficient, but you could try:
# create pairs my @tmp = map { $_, $_ } @filenames; # rotate push @tmp, shift @tmp; # create the result my %next = @tmp; my %prev = reverse @tmp;
In this code, the hashes form loops: to avoid that, replace the rotate step by code that remove the first and last elements. --Dave

In reply to Re: Efficient Linked Lists by dpuu
in thread Efficient Linked Lists by Ionizor

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