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Answers and rating deltas for

What does i+=(i&-i) do? Is it portable?

Author Votes Δ
ilim 10 +1.25
YSC 9 +0.86
R.. GitHub STOP HELPING ICE 5 -0.38
Walter 4 -0.46
S. Plum P. 3 -1.47
Pharap 0 -3.34
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