func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1e5 + 7;   const double eps = 1e-9;   int a[maxn];   int main() {     std::ios::sync_with_stdio(false);     int n, sum = 0;     cin >> n;     for (int i = 0; i < n; ++i) cin >> a[i], sum += a[i];     sort(a, a + n);     int ans = 0;     while (fabs(round(1.0 * sum / n) - 5.0) > eps) {       sum += 5 - a[0];       ++ans;       a[0] = 5;       sort(a, a + n);     }     cout << ans << endl;     return 0;   }   