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Answers and rating deltas for

Why check these two conditions before removing element from a list?

Author Votes Δ
chrixm 2 +3.61
Dave Newton 2 +0.66
Arqan 0 -1.38
Mark L. 0 -1.27
davidxxx 0 -0.57
progyammer 0 -1.63
Last visited: Jun 24, 2017, 4:03:14 PM