func_code_string: #include <bits/stdc++.h>   using namespace std;   const double eps = 1e-12;   int main() {     int n;     double r, v, T;     scanf( %d%lf%lf , &n, &r, &v);     T = 2 * acos(-1) * r / v;     for (int i = 0; i < n; i++) {       double s, f, tim, tot = 0;       scanf( %lf%lf , &s, &f);       tim = (f - s) / v;       tot = T * floor(tim / T);       tim -= tot;       double lef = 0.0, rig = T;       for (int j = 0; j < 100; j++) {         double t = (lef + rig) / 2.0;         double g = t + (2.0 * r / v) * sin(v * t / (2.0 * r));         if (g - tim >= -eps)           rig = t;         else           lef = t;       }       tot += lef;       printf( %.12lf n , tot);     }     return 0;   }   