#include <fstream>
#include <vector>
using namespace std;

ifstream is("rmq.in");
ofstream os("rmq.out");

using VI = vector<int>;
using VVI = vector<VI>;

int n, m;
VI s, log2;
VVI r;

void Read();
void RMQ();
void Query();

int main()
{
    Read();
    RMQ();
    Query();
    is.close();
    os.close();
    return 0;
}

void RMQ()
{
    log2 = VI(n + 1);
    for ( int i = 2; i < n; ++i )
        log2[i] = log2[i / 2] + 1;
    r = VVI(n + 1, VI(20));
    for ( int i = 0; i <= n; ++i )
        r[i][0] = i;
    for ( int j = 1; ( 1 << j ) <= n; ++j )
        for ( int i = 1; i + ( 1 << j ) - 1 <= n; ++i )
            if ( s[r[i][j - 1]] < s[r[i + ( 1 << (j - 1) )][j - 1]] )
                r[i][j] = r[i][j - 1];
            else
                r[i][j] = r[i + ( 1 << (j - 1) )][j - 1];
}

void Read()
{
    is >> n >> m;
    s = VI(n + 1);
    for ( int i = 1; i <= n; ++i )
        is >> s[i];
}

void Query()
{
    int x, y, val;
    while ( m-- )
    {
        is >> x >> y;
        val = log2[y - x + 1];
        os << min(s[r[x][val]], s[r[y - (1 << val) + 1][val]]) << "\n";
    }
}