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Answers and rating deltas for

Why if (n & -n) == n then n is a power of 2?

Author Votes Δ
Steve Jessop 93 +1.14
Mike Samuel 44 +0.95
Johan 13 +0.53
Eclipse 7 -0.35
Austin Salonen 4 -0.95
Eng.Fouad 4 -0.77
John B 0 -3.31
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