#include <bits/stdc++.h>

using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int e[100005];
int rmq[17][100005];
int n,m;
int main()
{
    int i,j,x,y;
    fin >> n >> m;
    for (i=1; i<=n; i++)
        fin >> rmq[0][i];
    e[1]=0;
    for (i=2; i<=n; i++)
        e[i]=e[i/2]+1;
    for (i=1; i<=n; i++)
        cout << i << " " << e[i] << "\n";
    for (i=1; i<=e[n]; i++)
    {
        for (j=1; j<=n-(1<<i)+1; j++)
        rmq[i][j]=min(rmq[i-1][j],rmq[i-1][j+(1<<(i-1))]);
    }
    while (m--)
    {
        fin >> x >> y;
        i=e[y-x+1];
        fout << min(rmq[i][x], rmq[i][y-(1<<i)+1]) << "\n";
    }

    return 0;
}