#include <fstream>
using namespace std;
ifstream cin("rmq.in");
ofstream cout("rmq.out");
int r[20][100005], i, j, n, m, v[100005], p, len, st, dr, x;
int main() {
    cin>>n>>m;
    for(i=1;i<=n;i++)
        cin>>r[0][i];
    for(i=1;(1<<i)<=n;i++){
        for(j=1;j<=n;j++){
            r[i][j]=r[i-1][j];
            int p=j+(1<<(i-1));
            if(p<=n && r[i][j]>r[i-1][p])
                r[i][j]=r[i-1][p];
        }
    }
    v[1]=0;
    for(i=2;i<=n;i++){
        v[i]=v[i/2]+1;
    }
    for (i=1;i<=m;i++){
        cin>>st>>dr;
        x=v[dr-st+1];
        len=(1<<x);
        cout<<min(r[x][st],r[x][dr-len+1])<<"\n";
    }









}