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

using namespace std;

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

int n, q, rmq[NMAX+10][20], log2[NMAX+10];

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 >> q;
    for(int i=1; i<=n; i++) f >> rmq[i][0];
    for(int j=1; (1<<j)<=n; j++)
        for(int i=1; i<=n-(1<<j)+1; i++)
            rmq[i][j] = min(rmq[i][j-1], rmq[i+(1<<(j-1))][j-1]);
    while(q--)
        {   int a, b;
            f >> a >> b;
            int l = log2[b-a+1];
            g << min(rmq[a][l], rmq[b-(1<<l)+1][l]) << '\n';
        }
    return 0;
}