#include <fstream>
#include <cmath>

using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int n,m,rmq[20][200011],expo2,i,p2,ind,x,y,lg,a;
int main()
{
    fin >> n >> m;
    for (i=1;i<=n;i++)
    {
        fin >> rmq[0][i];
    }
    for (expo2=1,p2=2;p2<=n;expo2++,p2*=2)
    {
        for (ind=1;ind<=n-p2+1;ind++)
        {
            rmq[expo2][ind]=min(rmq[expo2-1][ind],rmq[expo2-1][ind+(p2/2)]);
        }
    }
    for (i=1;i<=m;i++)
    {
        fin >> x >> y;
        lg=y-x+1;
        a=log2(lg);
        fout << min(rmq[a][x],rmq[a][y-(1<<a)+1]) << '\n';
    }
    return 0;
}