#include <fstream>
using namespace std;
int rmq[100002][18];
int lg[100002];
int main ()
{
    ifstream fin ("rmq.in");
    ofstream fout ("rmq.out");
    int n,m;
    fin>>n>>m;
    lg[1]=0;
    for (int i=2;i<=n;++i)
    {
        lg[i]=lg[i/2]+1;
    }
    for (int i=1;i<=n;++i)
    {
        fin>>rmq[i][0];
    }
    for (int i=1;i<=lg[n];++i)
    {
        for (int j=1;j+(1<<i)<=n;++j)
        {
            rmq[i][j]=min(rmq[j][i-1],rmq[j+(1<<(i-1))][i-1]);
        }
    }
    for (int i=0;i<m;++i)
    {
        int x,y,diff;
        fin>>x>>y;
        diff=y-x+1;
        fout<<min(rmq[x][lg[diff]],rmq[x+(1<<(lg[diff]-1))][lg[diff]]);
    }
}