#include <iostream>
#include <fstream>
using namespace std;

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

int a[100001];
int l[100001];
int v[20][100001];
int n,q;


int main()
{
    int i,j,x,y;
    f>>n>>q;
    l[2]=1;
    for(i=3; i<=n; i++)
        l[i]=l[i/2]+1;
    for(i=1; i<=n; i++)
    {
        f>>a[i];
        v[0][i]=a[i];
    }
    for(i=1; i<=l[n]; i++)
    {
        for(j=1; j<=n-(1<<i)+1; j++)
        {
            v[i][j]=min(v[i-1][j],v[i-1][j+(1<<(i-1))]);
        }
    }
    for(i=1; i<=q; i++)
    {
        f>>x>>y;
        g<<min(v[l[y-x]][x],v[l[y-x]][y+1-(1<<l[y-x])])<<"\n";
    }
    return 0;
}