func_code_string: #include <bits/stdc++.h>   using namespace std;   double r1, x, A, B, p1, p2, ans, t, y[5002], z[5002], r2;   int n, m, k;   int main() {     cin >> n;     for (int i = 1; i <= n; i++) {       cin >> x;       r1 = (((r1) > (x)) ? (r1) : (x));     }     cin >> m;     for (int i = 1; i <= m; i++) cin >> y[i];     cin >> k;     for (int i = 1; i <= k; i++) cin >> z[i];     cin >> A >> B;     for (int i = 1; i <= m; i++)       for (int j = 1; j <= k; j++) {         p1 = y[i];         p2 = z[j];         t = (p2 * A) / (p1 * B);         r2 = sqrt((r1 * r1) / (t + 1));         ans = (((ans) > (r2)) ? (ans) : (r2));       }     printf( %.9f n , ans);     return 0;   }   