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Answers and rating deltas for

Finding sum of x^k from k= 0 to n in O(logn) time

Author Votes Δ
samgak 20 +1.16
Leandro Caniglia 4 +2.10
ely 1 -0.49
Paul Hankin 1 -0.44
Kishan Kumar 0 -3.88
Last visited: Jan 2, 2016, 6:43:56 AM