#include <bits/stdc++.h>
#define LOG(x) for(k=0;(1<<k)<=(x);k++);--k;
using namespace std;

#define floor_log2(msb, n) asm("bsrl %1, %0" : "=r"(msb) : "r"(n))

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

int n, m, k, RMQ[17][100001];

int main()
{
    f >> n >> m;

    for(int i = 1; i <= n; i++)

        f >> RMQ[0][i];

    for(int i = 0; i < 16; i++)

        for(int j = 1; j < n - i; j++)

            RMQ[i + 1][j] = min(RMQ[i][j], RMQ[i][j + (1 << i)]);

    while(m--)
    {
        int x, y, z;

        f >> x >> y;

        z = y - x + 1;

        msb(k, z);

        g << min(RMQ[k][x], RMQ[k][y + 1 - (1 << k)]) << "\n";
    }
}