#include <fstream>
using namespace std;
int n,m,st,dr,i,e,j,d[20][100010],L[100010];
int main (){
    ifstream fin ("rmq.in");
    ofstream fout("rmq.out");
    fin>>n>>m;
    for(i=1;i<=n;i++){
        fin>>d[0][i];
    }
    for(e=1;(1<<e)<=n;e++){
        for(i=1; i<=n; i++){
            d[e][i]=d[e-1][i];
            j=i+(1<<(e-1));
            if(j<=n&&d[e][i]>d[e-1][j]){
                d[e][i]=d[e-1][j];
            }
        }
    }
    L[1]=0;
    for(i=2;i<=n;i++){
        L[i]=L[i/2]+1;
    }
    for(i=1;i<=m;i++){
        fin>>st>>dr;
        e=L[dr-st+1];
        dr=dr-(1<<e)+1;
        fout<<min(d[e][st], d[e][dr])<<"\n";
    }
    return 0;
}