#include <fstream>
#define NMAX 100000
using namespace std;
ifstream fin ("rmq.in");
ofstream fout ("rmq.out");

int n, m, j, st, dr, e;
int r[18][NMAX+2], E[NMAX+2];
int main()
{
    fin>>n>>m;
    ///construim r
    for(int i=1; i<=n; i++)
        fin>>r[0][i];
    for(int p=1; (1<<p)<=n; p++)
    {
        for(int i=1; i<=n-(1<<p)+1; i++)
        {
                 j=i+(1<<(p-1));
                r[p][i]=min(r[p-1][i],r[p-1][j]);
        }
    }
    ///construim E
    E[1]=0;
    for(int i=2; i<=n; i++)
        E[i]=1+E[i/2];
    ///raspundem la intrebari
    for(int i=1; i<=m; i++)
    {
        fin>>st>>dr;
        e=E[dr-st+1];
        fout<<min(r[e][st], r[e][dr-(1<<e)+1])<<"\n";

    }



    return 0;
}