#include <bits/stdc++.h>

using namespace std;

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

const int nax = 1e5 + 5;

int a[nax], lg[nax];
int arb[nax][20];
int n, m;

void Read()
{
    int i;
    f >> n >> m;
    for(i = 0; i < n; ++i)
        f >> a[i];
}

void Processing()
{
    int i, j;

    lg[1] = 0;
    for(i = 1; (1 << i) <= n; ++i)
    {
        for(j = (1 << (i)); j < (1 << (i+1)); ++j)
        {
            lg[j] = i;
        }
    }

    for(i = 0; i < n; ++i)
        arb[i][0] = i;

    for(j = 1; (1 << j) <= n; ++j)
    {
        for(i = 0; i + (1 << j) - 1 < n; ++i)
        {
            if(a[ arb[i][j-1] ]  <  a[ arb[i + (1 << (j-1))][j-1] ])
                arb[i][j] = arb[i][j-1];
            else
                arb[i][j] = arb[i + (1 << (j-1))][j-1];
        }
    }
}

int Rmq(int& st, int& dr)
{
    if(st > dr)
    {
        st ^= dr;
        dr ^= st;
        st ^= dr;
    }

    int range = dr - st + 1;
    int power = lg[range];
    return min(a[ arb[st][power] ], a[ arb[dr - (1 << power) + 1][power] ]);
}

int main()
{
    ios_base::sync_with_stdio(false);
    Read();
    Processing();

    int i, x, y;
    for(i = 1; i <= m; ++i)
    {
        f >> x >> y;
        --x; --y;
        g << Rmq(x, y) << "\n";
    }

//    for(int i = 0; i < n; ++i)
//    {
//        for(int j = 0; j < lg[n-i] + 1; ++j)
//            cout << arb[i][j] << " ";
//        cout << "\n";
//    }
    return 0;
}