func_code_string: #include <bits/stdc++.h>   using namespace std;   double eps = 1e-7;   int main() {     int t;     double a, b, ans;     scanf( %d , &t);     while (t--) {       scanf( %lf%lf , &a, &b);       ans = 0.50000000;       if (b < eps) {         printf( %lf n , 1.0);         continue;       }       if (a < eps) {         printf( %lf n , 0.5);         continue;       }       if (a / b - 4.0 < -eps) {         ans += 0.5 * (a * a / 8.0) / (a * b);       } else {         ans += 0.5 * (a * b - b * 2.0 * b) / (a * b);       }       printf( %lf n , ans);     }     return 0;   }   