I have 2 very large arrays (~ 2 million ) that I need to extract the unique elements out of.The array elements themselves are long strings up to 60 or 70 characters each
What is the fastest way of performing this extraction? I tried to use the code from http://www.perlmonks.org/?node_id=335021, but my script is still running :( for > 8 hours!!!
@a2 = eigenstates(any(@a2) != all(@a1));
Please bless me with a faster way to extract uniques from each array list. Thank you all