func_code_string: #include <bits/stdc++.h>   using namespace std;   int t;   double pi = acos(-1.0);   double d, h, v, e;   int main() {     scanf( %lf%lf%lf%lf , &d, &h, &v, &e);     double r = d / 2;     if (pi * r * r * e > v)       cout <<  NO  << endl;     else {       double s = (pi * r * r * h) / (v - pi * r * r * e);       cout <<  YES  << endl;       printf( %.12f n , s);     }     return 0;   }   