#include <iostream>
#include <fstream>
#include <cmath>
#define lim 100000
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,v[lim],x,y,M[18][18],lg[lim],l;
int main()
{
    f>>n>>m;
    for (int i=0;i<n;i++) f>>v[i];
    for (int i=0;i<n;i++)
        M[i][0]=i;
    for (int j=1;(1<<j)<=n;j++)
        for (int i=0;i+(1<<j)-1<n;i++)
            if (v[M[i][j-1]]<v[M[i+(1<<(j-1))][j-1]]) M[i][j]=M[i][j-1];
            else M[i][j]=M[i+(1<<(j-1))][j-1];
    lg[1]=0;
    for (int i=2;i<n;i++)
        lg[i]=lg[i/2]+1;
    for (int k=0;k<m;k++)
    {
        f>>x>>y;
        l=lg[y-x+1];
        g<<min(v[M[x][l]],v[M[y-(1<<l)][l]])<<'\n';
    }
    f.close();
    g.close();
    return 0;
}