#include<fstream>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int mat[18][100010],n,m,lg[100010],x,y,lim,aux;
int main () {
    f>>n>>m;
    for(int i=1;i<=n;++i)
        f>>mat[0][i];
    for(int i=2;i<=n;++i)
        lg[i]=lg[i>2]+1;
    for(int i=1;(1<<i)<=n;++i){
        for(int j=1;j<=n;++j){
            mat[i][j]=mat[i-1][j]<mat[i-1][j+(1<<(i-1))]?mat[i-1][j]:mat[i-1][j+(1<<(i-1))];
        }
    }
    for(;m>0;--m){
        f>>x>>y;
        lim=lg[x-y+1];
        aux=mat[lim][x]<mat[lim][y-(1<<(lim-1))+1]?mat[lim][x]:mat[lim][y-(1<<(lim-1))+1];
        g<<aux<<'\n';
    }
    g.close();
    return 0;
}