#include <fstream>
#include <cmath>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int isp2(int diff)
{
    int l=log2(diff);
    if(diff==1<<l)
        l--;
    return l;
}
int n,m,i,lg[100011],rmq[100011][18],l,j,x,y;
int main()
{
    f>>n>>m;
    for(i=1;i<=n;i++)
        f>>rmq[i][0];
    for(i=1;1<<i<=n;i++)
        for(j=1;j<=n-(1<<i)+1;j++)
        rmq[j][i]=min(rmq[j][i-1],rmq[j+(1<<(i-1))][i-1]);
    for(i=1;i<=m;i++)
    {
        f>>x>>y;
        l=isp2(y-x+1);
        g<<min(rmq[x][l],rmq[y-(1<<l)+1][l])<<'\n';
    }
    return 0;
}