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

int a[20][100005],n,m,minim; /// i = lungime ; j = poz

void gen()
{
    for(int i=1;i<=16;++i)
    {
        for(int j=1;j<=n;++j)
            a[i][j]=min(a[i-1][j],a[i-1][j+(1<<(i-1))]);
    }
    return;
}
void rez(int poz_start,int lungime)
{
    int i;
    for(i=0;(1<<i)<=lungime;++i);
    --i;
    minim=min(minim,a[i][poz_start]);
    lungime-=(1<<i);
    if(lungime)
        rez(poz_start+(1<<i),lungime);

}

int main()
{
    ifstream f("rmq.in");
    ofstream g("rmq.out");
    f>>n>>m;
    for(int i=1;i<=n;++i)
        f>>a[0][i];
    gen();
    for(int i=1;i<=m;++i)
    {
        minim=1<<30;
        int a,b;
        f>>a>>b;
        rez(a,b-a+1);
        g<<minim<<endl;
    }
    return 0;
}