func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long mx = (1 << 22);   long long f[mx], ans[mx];   int32_t main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     ;     long long n;     cin >> n;     long long a[n];     for (long long i = 0; i < n; i++) cin >> a[i];     memset(ans, -1, sizeof(ans));     for (long long i = 0; i < n; i++) {       f[a[i]]++;       ans[a[i]] = a[i];     }     for (long long j = 0; j < 22; j++)       for (long long i = 0; i < mx; i++)         if (i & (1 << j)) {           f[i] += f[i ^ (1 << j)];           if (f[i ^ (1 << j)]) ans[i] = ans[i ^ (1 << j)];         }     for (long long i = 0; i < n; i++) {       long long p = (mx - 1) & (~a[i]);       cout << ans[p] <<    ;     }     cout <<   n ;   }   