#include <fstream>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,v[100010],p[100010];
int a[20][100010];

int main(void){
    register int i,j,x,y;

    f>>n>>m;
    p[1]=0;
    f>>v[1];
    for(i=2;i<=n;i++){
        f>>v[i];
        p[i]=1+p[i/2];
    }

    for(i=1;i<=n;i++)
        a[0][i]=v[i];
    for(j=1;(1<<j)<=n;j++){
        for(i=1;i<=n;i++){
            a[j][i]=a[j-1][i];
            if((1<<(j-1))+i<=n && a[j-1][(1<<(j-1))+i]<=a[j][i])
                a[j][i]=a[j-1][(1<<(j-1))+i];
        }
    }

    for(;m>0;m--){
        f>>x>>y;
        j=p[y-x+1];
        g<<(a[j][x]<a[j][y-(1<<j)+1]?a[j][x]:a[j][y-(1<<j)+1])<<"\n";
    }

    f.close();
    g.close();
    return 0;
}