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Answers and rating deltas for

What's wrong with my recursion code to calculate the digital root in Java? How can I fix it?

Author Votes Δ
Rainer Schwarze 5 +3.93
Carl Walsh 2 +2.33
GETah 1 -0.14
Arne 1 -1.79
Pooya 1 -1.68
ericwfink 1 -1.67
Last visited: Sep 14, 2014, 5:07:29 AM