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Answers and rating deltas for

What does an upside down question mark mean in the output in C?

Author Votes Δ
Tim 5 +3.65
Nosredna 3 -0.27
Clifford 3 +0.17
Grzegorz Oledzki 3 -0.25
Last visited: Sep 14, 2014, 5:07:29 AM