#include <fstream>

using namespace std;
#define NMAX 100002
#define LMAX 18
#define doi_la(a) (1 << a)

int rm[LMAX][NMAX], n, m, lg[NMAX], a[NMAX];
int main()
{
    int i, j, l;
    ifstream f ("rmq.in");
    ofstream g ("rmq.out");
    f >> n >> m;
    for (i = 1; i <= n; ++i)
        f >> a[i];
    for (i = 2; i <= n; ++i)
        lg[i] = lg[i / 2] + 1;
    for (i = 1; i <= n; ++i)
        rm[0][i] = a[i];
    for (i = 1; doi_la(i) <=n; ++i)
        for (j = 1; j <= n - doi_la(i) + 1; ++j) {
            l = doi_la((i - 1));
            rm[i][j] = min(rm[i - 1][j], rm[i - 1][j + l]);
    }
    int x, y, diff, sh;
    for (i = 1; i <= m; ++i) {
        f >> x >> y;
    diff = y - x + 1;
    l = lg[diff];
    sh = diff - doi_la(l);
    g << min(rm[l][x], rm[l][x + sh]) << "\n";
    }
    return 0;
}