func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize( O3 )   using namespace std;   using ll = long long;   const char E =   n ;   const int N = 1005;   const ll mod = 1e9 + 7;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     int n, k, x, dp[2][1024] = {0};     cin >> n >> k >> x;     for (int i = 1; i <= n; i++) {       int y;       cin >> y;       dp[1][y]++;     }     for (int i = 1; i <= k; i++) {       int used = 0;       for (int j = 0; j <= 1023; j++) {         int bit, nbit;         bit = i & 1, nbit = i & 1 ^ 1;         if (!(dp[bit][j] & 1)) {           dp[nbit][j] += (dp[bit][j] >> 1);           dp[nbit][j ^ x] += (dp[bit][j] >> 1);         } else if (dp[bit][j]) {           dp[nbit][j] += (dp[bit][j] >> 1) + (used & 1);           dp[nbit][j ^ x] += (dp[bit][j] >> 1) + (used & 1 ^ 1);         }         used += dp[bit][j];         dp[bit][j] = 0;       }     }     int mx = 0, mn = 1024;     for (int i = 0; i <= 1023; i++) {       if (dp[k & 1 ^ 1][i]) {         mx = max(mx, i);         mn = min(mn, i);       }     }     cout << mx <<     << mn << E;     return 0;   }   