func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     ;     int t;     cin >> t;     while (t--) {       long long n;       cin >> n;       vector<long long> arr(n);       int neg = 0;       int pos = 0;       for (long long i = 0; i < n; i++) {         cin >> arr[i];         if (arr[i] < 0)           neg++;         else           pos++;       }       sort(arr.begin(), arr.end());       long long ans = 1;       ans = arr[n - 1] * arr[n - 2] * arr[n - 3] * arr[n - 4] * arr[n - 5];       ans = max(ans, arr[0] * arr[1] * arr[n - 1] * arr[n - 2] * arr[n - 3]);       ans = max(ans, arr[0] * arr[1] * arr[2] * arr[3] * arr[n - 1]);       cout << ans << endl;     }   }   