func_code_string: #include <bits/stdc++.h>   using namespace std;   using ll = long long;   int main() {     int t;     cin >> t;     while (t--) {       int n;       cin >> n;       vector<int> v(n);       for (int i = 0; i < n; i++) cin >> v[i];       int u = 1e9;       for (int a = 0; a <= 2; a++) {         for (int b = 0; b <= 2; b++) {           bool g = true;           int r = 0;           for (int i = 0; i < n; i++) {             bool f = false;             int m = 1e9;             for (int x = 0; x <= a; x++) {               for (int y = 0; y <= b; y++) {                 int s = v[i] - x - 2 * y;                 if (s >= 0 && s % 3 == 0) {                   f = true;                   m = min(m, s / 3);                 }               }             }             if (f)               r = max(r, a + b + m);             else               g = false;           }           if (g) u = min(u, r);         }       }       cout << u <<   n ;     }   }   