func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxm = 2e5 + 10;   set<int> g;   queue<set<int> > q;   int m, n, x, y;   int dfs(int top) {     if (abs(top) <= 1) return 0;     int now = 0;     if ((-top) % 2 == 0)       now = top / 2;     else       now = (top + 1) / 2;     if (g.find(now) == g.end()) {       g.erase(top);       g.insert(now);       return 1;     } else       return dfs(now);   }   int main() {     cin >> m;     for (int i = 1; i <= m; i++) {       cin >> x;       g.insert(-x);     }     for (;;) {       int top = *g.begin();       if (!dfs(top)) break;     }     for (auto e : g) cout << -e <<    ;     cout << endl;     return 0;   }   