#include <fstream>
#define INF 1000000000
using namespace std;
ifstream fin ("rmq.in");
ofstream fout("rmq.out");
int r[17][100010];
int E[100010];
int n, m, i, j, st, dr, minim, p, e, len;
    int main () {
        fin>>n>>m;
        for (i=1;i<=n;i++)
            fin>>r[0][i];
        for (p=1; (1<<p) <= n; p++)
            for (i=1;i<=n;i++) {
                r[p][i] = r[p-1][i];
                j = i + (1<<(p-1));
                if (j <= n && r[p][i] > r[p-1][j])
                    r[p][i] = r[p-1][j];
                }
    E[1] = 0;
    for (i=2;i<=n;i++)
        E[i] = 1 + E[i/2];
    for (i=1;i<=m;i++) {
        fin>>st>>dr;
        e = E[dr-st+1];
        len = (1<<e);
        fout<<min(r[e][st], r[e][dr-len+1])<<"\n";
        }
    }