func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = 0x3f3f3f3f;   int n;   int a[105];   int main() {     ios::sync_with_stdio(false);     cin >> n;     for (int i = 1; i <= n; i++) {       cin >> a[i];     }     int mx = 0;     for (int i = 1; i <= n; i++) {       int tmp = 0;       for (int j = i; j <= n; j++) {         tmp ^= a[j];         mx = max(mx, tmp);       }     }     cout << mx << endl;     return 0;   }   