func_code_string: #include <bits/stdc++.h>   using namespace std;   int dp[5000 + 1][5000 + 1];   int f[5000 + 1][5000 + 1];   int a[5000 + 1];   int N, Q;   int main() {     int i, j, len;     cin >> N;     for (i = 1; i <= N; i++) cin >> a[i];     for (i = 1; i <= N; i++) dp[i][i] = f[i][i] = a[i];     for (len = 2; len <= N; len++)       for (i = 1; i <= N - len + 1; i++) {         j = i + len - 1;         f[i][j] = f[i + 1][j] ^ f[i][j - 1];         dp[i][j] = max(f[i][j], max(dp[i + 1][j], dp[i][j - 1]));       }     cin >> Q;     while (Q--) {       cin >> i >> j;       cout << dp[i][j] <<   n ;     }     return 0;   }   