func_code_string: #include <bits/stdc++.h>   using namespace std;   template <typename A, typename B>   ostream &operator<<(ostream &os, const pair<A, B> &p) {     return os <<  (  << p.first <<  ,   << p.second <<  ) ;   }   template <typename T_container, typename T = typename enable_if<                                       !is_same<T_container, string>::value,                                       typename T_container::value_type>::type>   ostream &operator<<(ostream &os, const T_container &v) {     os <<  [ ;     string sep;     for (const T &x : v) os << sep << x, sep =  ,  ;     return os <<  ] ;   }   void debug_out() { cerr << endl; }   template <typename Head, typename... Tail>   void debug_out(Head H, Tail... T) {     cerr <<     << H;     debug_out(T...);   }   void run_case() {     int N;     cin >> N;     vector<int> A(N);     for (int &a : A) cin >> a;     int MX = *max_element(A.begin(), A.end()) / 3 + 100;     int best = MX;     for (int ones = 0; ones <= 2; ++ones)       for (int twos = 0; twos <= 2; ++twos) {         int threes = 0;         for (int a : A) {           int least = MX;           for (int one = 0; one <= ones; ++one)             for (int two = 0; two <= twos; ++two) {               int want = a - two * 2 - one;               if (want % 3 != 0 || want < 0) continue;               least = min(least, want / 3);             }           threes = max(threes, least);         }         best = min(best, ones + twos + threes);       }     cout << best <<   n ;   }   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     int tests;     cin >> tests;     while (tests--) run_case();   }   