#include <bits/stdc++.h>
using namespace std;

ifstream fin("rmq.in");
ofstream fout("rmq.out");

int n, m;
int rmq[25][100001];
int logs[25];

int main()
{
    int x, y;
    fin >> n >> m;
    logs[1] = 0;
    for(int i = 2; i <= 24; i++)
        logs[i] = logs[i / 2] + 1;
    for(int i = 1; i <= n; i++)
        fin >> rmq[0][i];
    for(int i = 1; (1 << i) <= n; i++)
        for(int j = (1 << i); j <= n; j++)
            rmq[i][j] = min(rmq[i - 1][j], rmq[i - 1][j - (1 << (i - 1))]);
    int k;
    while(m--)
    {
        fin >> x >> y;
        k = logs[x - y + 1];
        fout << min(rmq[k][x + (1 << k) - 1], rmq[k][y]) << "\n";
    }
    fin.close();
    fout.close();
    return 0;
}