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Answers and rating deltas for

Why is this regular expression not working ({m, n})?

Author Votes Δ
Mike Samuel 9 +1.83
Jim Brissom 6 +1.04
John Machin 3 -0.08
user225312 3 -0.48
Juliano 2 -1.48
Gowtham 1 -3.47
Last visited: Sep 14, 2014, 5:07:29 AM