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Answers and rating deltas for

How do I get unique elements in this array?

Author Votes Δ
Peter 88 +1.09
ajmartin 11 +1.96
John Ballinger 7 +0.17
xiy 4 0.00
the Tin Man 0 -1.10
Christian Fazzini 0 -3.03
Last visited: Sep 14, 2014, 5:07:29 AM