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Answers and rating deltas for

In awk, how do you print only the unique employee names and leave blank duplicates on the following

Author Votes Δ
jiggens 0 -0.03
RomanPerekhrest 0 -0.19
CWLiu 0 -0.12
RavinderSingh13 0 +0.31
Last visited: Nov 23, 2017, 6:20:18 PM