Guys, please comment this:
Visual C++ 2010: WA 29
G++ 4.7.2: WA 47
G++ 4.7.2 C++11: WA 1

I used double type, sqrt function and arithmetic operations.

WA 29/47: different precision, you can divide by small number and inaccuracy will greatly increase, if you are lucky - you don't get WA

C++11: don't use %lf, use %f instead, but you also will get WA1, because of sqrt(-EPS) - its nan

Edited by author 17.06.2013 00:16