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Answers and rating deltas for

How can I validate that a string holds only zeroes and ones?

Author Votes Δ
Arup Rakshit 3 +1.37
Erez Rabih 1 +0.65
steenslag 0 -0.84
Todd A. Jacobs 0 -0.97
Michael Kruglos 0 -1.66
Last visited: Sep 14, 2014, 5:07:29 AM