#include <fstream>
#define DIM 100001
using namespace std;
ifstream fi("rmq.in");
ofstream fo("rmq.out");
int n,m;
int D[20][DIM];
int log2(int x)
{
    int rez=0;
    while((1<<rez)<=x)
        rez++;
    return  rez-1;
}
int main()
{
    fi>>n>>m;
    for(int i=1;i<=n;i++)
        fi>>D[0][i];
    for(int i=1;(1<<i)<=n;i++)
        for(int j=1;j<=n-(1<<(i-1))+1;j++)
            D[i][j]=min(D[i-1][j],D[i-1][j+(1<<(i-1))]);
    for(int i=1;i<=m;i++)
    {
        int a,b;
        fi>>a>>b;
        int k=log2(b-a);
        fo<<min(D[k][a],D[k][b-(1<<k)+1])<<"\n";
    }
    fi.close();
    fo.close();
    return 0;
}