#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";
    }
}