#include <iostream>
#include <fstream>
using namespace std;
int n, q, rmq[100005][25], p = 1, lg, ex, pw[100005], x, y, j;
int main()
{
    ifstream cin("rmq.in");
    ofstream cout("rmq.out");
    cin >> n >> q;
    for (int i = 1;i <= n;i++) {
        cin >> x;
        rmq[i][0] = x;
        if (p * 2 <= i)
        {
            ex++;
            p = p * 2;
        }
        pw[i] = ex;
    }
    for (lg = 2, j = 1;lg <= n;lg *= 2, j++)
        for (int i = 1;i + lg-1 <= n;i++)
            rmq[i][j] = min(rmq[i][j - 1], rmq[i + lg / 2][j - 1]);
    while (q) {
        cin >> x >> y;
        cout << min(rmq[x][pw[y - x + 1]], rmq[y - pw[y - x + 1]*2 + 1][pw[y - x + 1]]) << endl;
        q--;
    }
}