#include <bits/stdc++.h>
using namespace std;
ifstream fin ("rmq.in");
ofstream fout ("rmq.out");
int mt[20][100005];
int lg[100005];
int N, M;
int main ()
{
    fin >> N >> M;
    for (int i = 1; i <= N; i++)
        fin >> mt[1][i];
    for(int i = 2; i <= N; i++)
        lg[i] = lg[i / 2] + 1;
    for (int j = 1; j <= lg[N]; j++)
        for (int i = 1; i + j <= N; i++)
            mt[j + 1][i] = min (mt[j][i], mt[j][i + j]);
    for (int i = 1; i <= M; i++)
    {
        int a, b;
        fin >> a >> b;
        int val = lg[b - a];
        fout << min (mt[val + 1][a], mt[val + 1][b - (1 << val) + 1]) << "\n";
    }
}