func_code_string: #include <bits/stdc++.h>   const int MAXN = 10010100;   const int MAZN = 301010;   int ch[MAXN][3];   int n, cnt, cout[MAXN];   int arr[MAZN];   int main() {     scanf( %d , &n);     for (int i = 1; i <= n; i++) {       scanf( %d , &arr[i]);     }     for (int i = 1; i <= n; i++) {       int tem, p = 0;       scanf( %d , &tem);       for (int k = 29; k >= 0; k--) {         int tmp = (tem >> k) & 1;         if (ch[p][tmp])           p = ch[p][tmp];         else           p = ch[p][tmp] = ++cnt;         cout[p]++;       }     }     for (int i = 1; i <= n; i++) {       int x = arr[i];       int ans = 0, p = 0;       for (int j = 29; j >= 0; j--) {         int tmp = (x >> j) & 1;         if (ch[p][tmp] && cout[ch[p][tmp]]) {           p = ch[p][tmp];         } else {           p = ch[p][!tmp];           ans += (1 << j);         }         cout[p]--;       }       printf( %d  , ans);     }   }   