func_code_string: #include <bits/stdc++.h>   using namespace std;   void fast() {     ios_base::sync_with_stdio(0);     cin.tie(NULL);     cout.tie(NULL);   }   int main() {     fast();     double n;     cin >> n;     vector<double> v(n);     for (int i = 0; i < n; i++) cin >> v[i];     double sum = 0;     for (int i = 0; i < n; i++) sum += v[i] / 100.0;     double res = (sum / n) * 100.0;     cout << fixed << setprecision(12) << res << endl;     cin.ignore();     cin.get();     return 0;   }   