#include <fstream>

using namespace std;

ifstream fin("rmq.in");
ofstream fout("rmq.out");

int n,q,i,j,nc,st,dr,put2c,d[22][100002],mi[100002];

int main ()
{

    fin >> n >> q;
    for(i=1;i<=n;i++) fin >> d[0][i];
    mi[1]=0;
    for(i=2;i<=n;i++) mi[i]=mi[i/2]+1;
    for(i=1;(1<<i)<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            put2c=j+(1<<(i-1));
            d[i][j]=min(d[i-1][j],d[i-1][put2c]);
        }
    }
    for (i=1;i<=q;i++)
    {
        fin >> st >> dr;
        nc=mi[dr-st+1];
        fout << min(d[nc][st],d[nc][dr-(1<<nc)+1]) << "\n";
    }
    return 0;
}