#include <fstream>
#include <iostream>
#define NMAX 100000

using namespace std;

ifstream f("rmq.in");
ofstream g("rmq.out");

int n, m, log2[NMAX+10], a[NMAX+10][20];

void precalc()
{   log2[1] = 0;
    for(int i=2; i<=NMAX; i++)
        {   log2[i] = log2[i-1];
            if((i & (i-1)) == 0) log2[i]++;
        }
}

int main()
{
    precalc();
    f >> n >> m;
    for(int i=1; i<=n; i++) f >> a[i][0];
    for(int i=1; i<=(1<<n); i++)
        for(int j=1; j<=n-(1<<i)+1; j++) a[j][i] = min(a[j][i-1], a[j+(1<<(i-1))][i-1]);

    while(m--)
        {   int x, y, l;
            f >> x >> y;
            l = log2[y-x+1];
            g << min(a[x][l], a[y-(1<<l)+1][l]) << '\n';
        }
    return 0;
}