#include <bits/stdc++.h>
#include <cmath>
#define NRmax 100005

using namespace std;

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

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


int main()
{
    int i,j,x,y;
    f>>n>>m;
    for(i=1;i<=n;i++)
        f>>rmq[0][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=log2(len);
        g<<min(rmq[len][x],rmq[len][y-(1<<len)+1])<<'\n';
    }
    return 0;
}