func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t, a, b;     scanf( %d , &t);     while (t--) {       scanf( %d%d , &a, &b);       double output;       if (b == 0) {         printf( 1 n );         continue;       } else if (a == 0) {         printf( 0.5 n );         continue;       }       if (a < 4 * b)         output = (double)(a + 8 * b) / 16.0 / b;       else         output = (double)(a - b) / (double)a;       printf( %lf n , output);     }     return 0;   }   