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Answers and rating deltas for

What is the most efficient way to find and print the duplicate values in arraylist?

Author Votes Δ
Surinder ツ 3 +4.15
Evgeniy Dorofeev 2 +1.22
Dilum Ranatunga 1 -0.19
Prabhakaran 0 -1.49
Last visited: Sep 14, 2014, 5:07:29 AM