func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k, a[105], b[105], i, q, j, f, x, c = 0;     double s = 0, s1 = 0, min = -1, max = -1;     cin >> n >> k;     for (i = 1; i <= n; i++) cin >> a[i];     cin >> q;     for (i = 1; i <= q; i++) {       f = 0;       s = 0;       for (j = 1; j <= n / k; j++) {         cin >> x;         if (a[x] == -1) {           f = 1;         }         s = s + a[x];         a[x] = -1;       }       if (f == 0) {         c++;         s = s / (n / k);         if (i == 1) {           min = s;           max = s;         } else {           if (s < min)             min = s;           else if (s > max)             max = s;         }       }     }     j = 0;     for (i = 1; i <= n; i++) {       if (a[i] != -1) b[j++] = a[i];     }     sort(b, b + j);     if (j >= (n / k) && k - c >= 1) {       s = 0;       s1 = 0;       for (i = 0; i < (n / k); i++) {         s = s + b[i];         s1 = s1 + b[j - 1 - i];       }       s = s / (n / k);       s1 = s1 / (n / k);       if (min == -1 && max == -1) {         min = s;         max = s1;       } else {         if (s < min) min = s;         if (s1 > max) max = s1;       }     }     printf( %0.10lf %0.10lf , min, max);     return 0;   }   