func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int n, i, o = 0, e = 0;     cin >> n;     for (i = 0; i < n; i = i + 1) {       long long int x;       cin >> x;       if (x % 2 == 0)         e = e + 1;       else         o = o + 1;     }     long long int res = min(o, e);     o = o - res;     res = res + (o / 3);     cout << res << endl;   }   