func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, q, s, cntlog2[2050] = {0};   int main() {     scanf( %d , &q);     while (q--) {       memset(cntlog2, 0, sizeof(cntlog2));       scanf( %d , &n);       for (int i = 0; i < n; i++) {         scanf( %d , &s);         if (s <= 2048) cntlog2[s]++;       }       for (int i = 1; i < 2048; i++) {         while (cntlog2[i] >= 2) {           cntlog2[i] -= 2;           cntlog2[2 * i]++;         }       }       if (cntlog2[2048]) {         printf( YES n );       } else {         printf( NO n );       }     }     return 0;   }   