#include <fstream>
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int n,q,i,j,k,val,x,y;
int d[25][100005],p[100005],l[100005];
int main ()
{

    fin>>n>>q;
    for(i=1;i<=n;i++)
        fin>>d[0][i];
    p[1]=0;
    for(i=2;i<=n;i++)
        p[i]=1+p[i/2];
    for(i=1;(1<<i)<=n;i++)
        for(j=1;j<=n;j++)
                d[i][j]=min(d[i-1][j],d[i-1][j+(1<<(i-1))]);
    for (i=1;i<=q;i++)
    {
        fin>>x>>y;
        val=p[y-x+1];
        fout<<min(d[val][x],d[val][y-(1<<val)+1])<<"\n";
    }
    return 0;
}