#include <fstream>
using namespace std;
ifstream cin("rmq.in");
ofstream cout("rmq.out");
int i, j, n, m, lg, e, x, y;
int r[20][100002], v[100002], exp[100002];
int main(){
    cin>>n>>m;
    for(i=1;i<=n;i++){
        cin>>v[i];
        r[0][i]=v[i];
    }
    for(lg=1;(1<<lg)<=n;lg++){
        for(i=1;i<=n;i++){
            r[lg][i]=r[lg-1][i];
            if(i+(1<<(lg-1))<=n)
            r[lg][i]=min(r[lg][i], r[lg-1][i+(1<<(lg-1))]);
        }
    }
    exp[1]=0;
    for(i=2;i<=n;i++)
        exp[i]=exp[i/2]+1;
    while(m--){
        cin>>x>>y;
        lg=y-x+1;
        e=exp[lg];
        cout<<min(r[e][x], r[e][y-(1<<e)+1])<<"\n";
    }
}