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Answers and rating deltas for

How do I remove repeated pattern except the last one with Regex?

Author Votes Δ
jfriend00 1 +1.05
nnnnnn 0 -0.27
Paul 0 -0.53
flungabunga 0 -0.61
William A 0 -0.54
goatslacker 0 -0.83
Last visited: Sep 14, 2014, 5:07:29 AM