#include <fstream>
#include <iostream>
#define NMAX 100002

using namespace std;

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

int n,m,dp[17][NMAX];

int get_put2(int st, int dr)
{
    int dif = dr - st + 1;

    int pt = 0;
    while((1 << (pt+1)) <= dif)
        pt ++;

    return pt;
}

int main()
{
    f >> n >> m;
    for(int i = 1; i <= n; ++i)
        f >> dp[0][i];

    for(int i = 1; (1 << i) <= n; ++i)
    {
        int lim = n + 1 - (1 << i);
        for(int j = 1; j <= lim; ++j)
            dp[i][j] =  min(dp[i-1][j],dp[i-1][j+(1<<(i-1))]);
    }

    int a,b,put2;
    for(int i = 1; i <= m; ++i)
    {
        f >> a >> b;

        put2 = get_put2(a,b);

        o << min(dp[put2][a],dp[put2][b-(1<<put2)+1]) << '\n';
    }

    return 0;
}