func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N6 = 1e6 + 6, N3 = 1e3 + 6, oo = 1e9 + 9;   int n, a[N6], ans;   bool ok;   int main() {     ios_base ::sync_with_stdio(0);     cin >> n;     for (int i = 1; i <= n; ++i) {       cin >> a[i];     }     for (int i = 1; i <= n; ++i) {       if (!a[i]) {         int cnt = 0;         while (!a[i] && i <= n) {           ++i;           ++cnt;         }         if ((cnt == 1 && !ok) || (cnt > 1) || (i > n && cnt == 1)) ans += cnt;       }       if (a[i]) ok = 1;     }     cout << abs(n - ans);     return 0;   }   