#include<fstream>
using namespace std;
int n, q, i, j, b[100003], x[20][100003], y[100003], q1, q2, q3;
ifstream in("rmq.in");
ofstream out("rmq.out");
int main(){
    in>>n>>q;
    for(i=1; i<=n; i++)
        in>>b[i];
    for(i=1; i<=n; i++)
        x[0][i]=b[i];
    for(i=1; i*i<=n; i++)
        for(j=1; j<=n; j++){
            if(j+(1<<(i-1))<=n)
                x[i][j]=min(x[i-1][j], x[i-1][j+(1<<(i-1))]);
            else
                x[i][j]=min(x[i-1][j], x[i-1][n]);
        }
    y[1]=0;
    for(i=2; i<=n; i++)
        y[i]=1+y[i/2-1];
    for(;q--;){
        in>>q1>>q2;
        q3=q2-q1;
        out<<min(x[y[q3]][q1], x[y[q3]][q2-q3+1])<<"\n";
    }


return 0;
}