func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<int> teams(200000);   int main() {     ios_base::sync_with_stdio(false);     int N;     cin >> N;     for (int i = 0; i < N; i++) cin >> teams[i];     for (int i = 0; i < N; i++) {       if (teams[i] == 0) {         continue;       }       if (teams[i] >= 2) {         teams[i] %= 2;       }       if (teams[i] == 1 && i != N - 1) {         teams[i + 1] -= 1;         teams[i] -= 1;       }       if (teams[i] != 0) {         cout <<  NO               <<   n ;         return 0;       }     }     cout <<  YES           <<   n ;     return 0;   }   