func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAX = 2e5 + 10;   int cnt[MAX];   vector<int> up, down;   int main() {     ios::sync_with_stdio(false);     memset(cnt, 0, sizeof(cnt));     int n, x, max_num = -1;     cin >> n;     for (int i = 0; i < n; i++) {       cin >> x;       cnt[x]++;       max_num = max(max_num, x);     }     for (int i = 0; i <= max_num; i++) {       if (cnt[i] > 2) {         cout <<  NO  << endl;         return 0;       }     }     for (int i = max_num; i >= 0; i--) {       if (cnt[i]) {         down.push_back(i);         cnt[i]--;       }     }     for (int i = 0; i <= max_num; i++) {       if (cnt[i]) {         up.push_back(i);         cnt[i]--;       }     }     cout <<  YES  << endl;     cout << up.size() << endl;     if (up.size() > 0) {       for (int i = 0; i < up.size() - 1; i++) cout << up[i] <<    ;       cout << up[up.size() - 1] << endl;     } else {       cout <<     << endl;     }     cout << down.size() << endl;     if (down.size() > 0) {       for (int i = 0; i < down.size() - 1; i++) cout << down[i] <<    ;       cout << down[down.size() - 1] << endl;     } else {       cout <<     << endl;     }     return 0;   }   