#include <bits/stdc++.h>
#define LG 100000

using namespace std;

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

int N, M, v[LG + 5], rmq[LG+ 5][30];

int main()
{
    fin >> N >> M;
    for (int i = 1; i <= N; i++){
        fin >> v[i];
        rmq[i][0] = v[i];
    }
    for (int j = 1; (1 << j) <= N; j++){
        for (int i = 1; i + (1 << j) - 1 <= N; i++){
            rmq[i][j] = min(rmq[i][j - 1], rmq[i + (1 << (j-1))][j - 1]);
        }
    }
    for (int i = 1; i <= M; i++){
        int x, y;
        fin >> x >> y;
        int k = log2(y - x + 1);
        fout << min(rmq[x][k], rmq[y - (1 << k) + 1][k]) << '\n';
    }

    return 0;
}