func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<long long int> odds;   int main() {     int n;     scanf( %d , &n);     long long int sum = 0;     int length_odds = 0;     for (int x = 0; x < n; x++) {       long long int num;       scanf( %lld , &num);       if (num % 2 == 0) {         sum += num;       } else {         odds.push_back(num);         length_odds++;       }     }     sort(odds.begin(), odds.end());     reverse(odds.begin(), odds.end());     for (int x = 1; x < length_odds;) {       sum += odds[0] + odds[1];       odds.erase(odds.begin());       odds.erase(odds.begin());       x += 2;     }     printf( %lld , sum);     return 0;   }   