#include <fstream>
#include <cmath>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,d[100001][22],i,j,x,q,a,b;
int main()
{
    f>>n>>m;
    for(i=1; i<=n; i++)
    {
        f>>d[i][0];
    }

    for (j=1; (1<<j)<=n; j++)
    {
        for (i=1; i+(1<<j)-1<=n; i++)
        {
            d[i][j]=min(d[i][j-1],d[i+(1<<(j-1))][j-1]);
        }
    }
    //g<<d[1][2]<<" ";
    for(q=1; q<=m; q++)
    {
        f>>a>>b;
        x=log2(b-a+1);
        g<<min(d[a][x],d[b-(1<<x)+1][x])<<'\n';
    }
    return 0;
}