/*

#include <bits/stdc++.h>

using namespace std;

int main() {
    freopen("carici.in", "r", stdin);

    //freopen(".in", "r", stdin);
    //freopen(".out", "w", stdout);
    ios::sync_with_stdio(false);

    return 0;
}

 */

#include <bits/stdc++.h>

using namespace std;

#define pow2(x) (1 << x)

int n, m;
int lg2[100001];
int D[20][100001];

int main() {
    //freopen("carici.in", "r", stdin);

    freopen("rmq.in", "r", stdin);
    freopen("rmq.out", "w", stdout);
    ios::sync_with_stdio(false);

    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        cin >> D[0][i];
    }

    lg2[0] = 1;
    lg2[1] = 0;
    for (int i = 2; i <= n; i++) {
        lg2[i] = lg2[i / 2] + 1;
    }

    for (int i = 1; i <= lg2[n]; i++) {
        for (int j = 1; j <= n - pow2(i - 1); j++) {
            D[i][j] = min(D[i - 1][j], D[i - 1][j + pow2(i - 1)]);
        }
    }

    for (int i = 0, x, y; i < m; i++) {
        cin >> x >> y;
        int k = lg2[y - x + 1];
        cout << min(D[k][x], D[k][y - pow2(k) + 1]) << "\n";
    }

    return 0;
}