#include <fstream>
using namespace std;

ifstream fin("rmq.in");
ofstream fout("rmq.out");

#define NMAX 100005

int dp[20][NMAX];
int log2[NMAX];

int main()
{
    int n, m;
    fin >> n >> m;

    for (int i = 1; i <= n; ++i)
        fin >> dp[0][i];

    log2[1] = 0;
    for (int i = 2; i <= n; ++i)
        log2[i] = log2[i / 2] + 1;

    for (int i = 1; (1 << i) <= n; ++i)
        for (int j = 1; j <= n - (1 << i) + 1; ++j)
        {
            int putere = 1 << (i - 1);
            if (dp[i - 1][j] < dp[i - 1][j + putere])
                dp[i][j] = dp[i - 1][j];
            else
                dp[i][j] = dp[i - 1][j + putere];
        }

    for (int i = 1; i <= m; ++i)
    {
        int x, y;
        fin >> x >> y;

        int exp = y - x + 1;
        int log = log2[exp];
        int putere = exp - (1 << log);

        if (dp[log][x] < dp[log][x + putere])
            fout << dp[log][x] << '\n';
        else
            fout << dp[log][x + putere] << '\n';
    }
    return 0;
}