#include <fstream>
#include <algorithm>
using namespace std;
int n,m,rmq[17][100001],x,y,aux,i,j,v[100001],put2[17],dif;
int main(){
ifstream fin("rmq.in");
ofstream fout("rmq.out");
fin>>n>>m;
put2[i]=1;
for (i=1;i<=17;i++) put2[i]=put2[i-1]*2;
for (i=1;i<=n;i++) fin>>rmq[0][i];
for (i=1;put2[i]<=n;i++){
    aux=put2[i-1];
    for (j=1;j+aux<=n;j++)
        rmq[i][j]=min(rmq[i-1][j],rmq[i-1][j+aux]);
}
for (i=2;i<=n;i++) v[i]=v[i/2]+1;
for (i=1;i<=m;i++){
    fin>>x>>y;
    dif=v[y-x+1]; aux=put2[dif];
    fout<<min(rmq[dif][x],rmq[dif][y-aux+1])<<"\n";
}
return 0;
}