#include <fstream>
#include <math.h>

using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int n, m, i, j, x, y, a[100005], rmq[21][100005], p, nr, st, dr, lg;
int main()
{
    fin>>n>>m;
    for(i=1; i<=n; i++)
        fin>>rmq[0][i];
    p=2;
    while(p<=n)
    {
        nr++;
        for(int i=1; i<=n-p+1; i++)
            rmq[nr][i]=min(rmq[nr-1][i], rmq[nr-1][i+p/2]);
        p*=2;
    }
    while(m--)
    {
        fin>>st>>dr;
        lg=dr-st+1;
        p=log2(lg);
        fout<<min(rmq[p][st], rmq[p][dr-(1<<p)+1])<<'\n';
    }
    return 0;
}