func_code_string: #include <bits/stdc++.h>   using namespace std;   long long mo(long long a) { return a % (long long)(1e9 + 7); }   long long po(long long x, long long y, long long p) {     long long res = 1;     x = x % p;     while (y > 0) {       if (y & 1) res = (res * x) % p;       y >>= 1;       x = (x * x) % p;     }     return res % p;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     long long t;     cin >> t;     while (t--) {       long long n;       cin >> n;       vector<long long> a(n);       for (long long i = 0; i < a.size(); i++) cin >> a[i];       ;       vector<long long> sp;       long long i = 0;       while (i < n && a[i] == 0) i++;       for (; i < n; i++) {         while (i < n && a[i]) i++;         long long cnt = 0;         while (i < n && a[i] == 0) {           cnt++;           i++;         }         sp.push_back(cnt);       }       if (a[n - 1] == 0) sp.pop_back();       long long ans = 0;       for (long long e : sp) ans += e;       cout << ans <<   n ;     }     return 0;   }   