func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 100010;   int n;   int q;   long long a[201];   multiset<long long> s;   int main() {     cin >> q;     while (q--) {       int flag = 0;       s.clear();       cin >> n;       long long x;       for (int i = 1; i <= n; i++) {         cin >> x;         if (x == 2048) flag = 1;         s.insert(x);       }       if (flag) {         printf( YES n );         continue;       }       multiset<long long>::iterator it1;       multiset<long long>::iterator it2;       while (s.size() >= 2) {         it1 = s.begin();         it2 = s.begin();         it2++;         long long t1 = *it1;         long long t2 = *it2;         if (t1 == t2) {           if (t1 + t2 == 2048) {             flag = 1;             break;           }           s.erase(it1);           s.erase(it2);           s.insert(t1 + t2);         } else {           if (t1 == 2048 || t2 == 2048) {             flag = 1;             break;           }           s.erase(it1);         }       }       if (flag)         printf( YES n );       else         printf( NO n );     }     return 0;   }   