func_code_string: #include <bits/stdc++.h>   using namespace std;   const double PI =       3.141592653589793238462643383279502884197169399375105820974944592307816406286;   double d, h, v, e;   int main() {     scanf( %lf%lf%lf%lf , &d, &h, &v, &e);     if (4 * v - d * d * PI * e <= 0)       printf( NO n );     else       printf( YES n%.12f n , (PI * h * d * d) / (4 * v - d * d * PI * e));   }   