func_code_string: #include <bits/stdc++.h>   using namespace std;   int A[100000];   void solve() {     int n;     cin >> n;     int prv = -1;     for (int i = 0; i < (n); i++) cin >> A[i];     int res = 1;     for (int i = 0; i < (n); i++) {       int x = A[i];       ;       ;       if (x == 0) {         if (prv == 0) {           cout <<  -1 n ;           return;         }       } else {         if (prv != 1) {           res++;         } else {           res += 5;         }       }       prv = x;     }     cout << res <<   n ;   }   int main() {     ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10),         cin.tie(0), cout.tie(0);     ;     int t;     cin >> t;     while (t--) solve();   }   