func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, k, q, inc[101];   double a[101], mi = 1000000007LL, ma;   set<vector<int> > S;   set<vector<int> >::iterator it;   int main() {     cin >> n >> k;     for (int i = 0; i < n; i++) cin >> a[i];     cin >> q;     int m = n / k;     for (int i = 0; i < q; i++) {       vector<int> v;       for (int j = 0; j < m; j++) {         int x;         cin >> x;         v.push_back(x);         inc[v[j] - 1] = 1;       }       sort(v.begin(), v.end());       S.insert(v);     }     for (it = S.begin(); it != S.end(); it++) {       vector<int> v = *it;       double s = 0;       for (int i = 0; i < v.size(); i++) s += a[v[i] - 1];       s /= v.size();       mi = min(mi, s);       ma = max(ma, s);     }     vector<double> v;     for (int i = 0; i < n; i++)       if (!inc[i]) v.push_back(a[i]);     if (v.size() >= m && k > S.size()) {       sort(v.begin(), v.end());       double s = 0;       for (int i = 0; i < m; i++) s += v[i];       mi = min(mi, s / m);       s = 0;       for (int i = 0; i < m; i++) s += v[v.size() - 1 - i];       ma = max(ma, s / m);     }     cout << setprecision(9) << mi <<     << ma;   }   