#include <iostream>
#include <fstream>

#define NMAX 100005

using namespace std;

ifstream fin ("rmq.in");
ofstream fout ("rmq.out");

int n,m,d[20][NMAX];

int main()
{
    fin>>n>>m;
    for (int i=1;i<=n;i++)
        fin>>d[0][i];
    for (int i=1;(1<<i)<=n;i++)
        for (int j=1;j<=n-(1<<i)+1;j++)
            d[i][j]=min(d[i-1][j],d[i-1][j+(1<<(i-1))]);
    for (int v=0;v<m;v++)
    {
        int x,y,k;
        fin>>x>>y;
        for (k=1;(1<<k)<=y-x;k++);
        k--;
        fout<<min(d[k][x],d[k][y-(1<<k)+1])<<'\n';
    }
    return 0;
}