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

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

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

int n,m,v[50][100005];
int x,y;
int E[100005];

int main()
{
    f>>n>>m;
    for(int i=1;i<=n;i++){
        f>>v[0][i];
    }

    for(int e=1;(1<<e)<=n;e++){
        for(int i=1;i<=n;i++){
            v[e][i] = v[e-1][i];
            if(i+(1<<(e-1)) <= n){
                v[e][i] = min(v[e][i],v[e-1][i+(1<<(e-1))]);
            }
        }
    }

    E[1] = 0;
    for(int i=2;i<=n;i++){
        E[i] = E[i/2]+1;
    }

    for(int i=1;i<=m;i++){
        f>>x>>y;
        int e = E[(y-x)];
        int len = (1<<e);

        //cout<<x<<" "<<y<<" "<<len<<'\n';
        g<<min(v[e][x],v[e][y-len+1])<<'\n';
    }

    return 0;
}