#include <fstream>

using namespace std;

ifstream cin("rmq.in");
ofstream cout("rmq.out");

int q[25][100005], n, m, lg[100005];

void citire()
{
    cin >> n >> m;
    for(int i = 2 ; i <= n + 1 ; i++)
        lg[i] = lg[i / 2] + 1, cin >> q[0][i - 1];
}

void rez()
{
    for(int i = 1 ; (i << 1) <= n ; i++)
        for(int j = 1 ; j + (i << 1) - 1 <= n ; j++)
            q[i][j] = min(q[i-1][j], q[i-1][j + (1 << (i - 1))]);
}

void print()
{
    int l, x, y;
    for(int i = 1 ; i <= m ; i++)
        cin >> x >> y, l = lg[y - x + 1], cout << min(q[l][x], q[l][y + 1 - (1 << l)]) << '\n';
}

int main()
{
    citire();
    rez();
    print();
}