func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, a[5050][5050], b[5050][5050] = {0};   int q, l, r;   int main() {     cin >> n;     for (int i = 0; i < n; i++) {       cin >> a[0][i];       b[0][i] = a[0][i];     }     for (int l = 1; l < n; l++) {       for (int i = 0; i < n - l; i++) {         a[l][i] = a[l - 1][i] ^ a[l - 1][i + 1];         b[l][i] = max(b[l - 1][i], b[l - 1][i + 1]);         b[l][i] = max(b[l][i], a[l][i]);       }     }     cin >> q;     for (int i = 0; i < q; i++) {       cin >> l >> r;       cout << b[r - l][l - 1] << endl;     }     return 0;   }   