#include <bits/stdc++.h>

#define NRmax 100005

using namespace std;

ifstream f("rmq.in");
ofstream g("rmq.out");

int rmq[25][NRmax],a[NRmax],lg[NRmax];
int n,m;


int main()
{
    int i,j,x,y;
    f>>n>>m;
    for(i=1;i<=n;i++)
        f>>a[i];
    lg[1]=0;
    for(i=2;i<=NRmax-5;i++)
        lg[i]=lg[i/2]+1;
    for(i=1;i<=n;i++)
        rmq[0][i]=a[i];
    for(i=1;(1<<i)<=n;i++)
        for(j=1;j<=n-(1<<i)+1;j++)
            rmq[i][j]=min(rmq[i-1][j],rmq[i-1][j+(1<<(i-1))]);

    for(i=1;i<=m;i++)
    {
        f>>x>>y;
        int len=y-x+1;
        len=lg[len];
        g<<min(rmq[len][x],rmq[len][y-(1<<len)+1])<<'\n';
    }


    return 0;
}