#include <fstream>
#include <math.h>

using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int n, m, i, j, x, y, rmq[21][100005];
int main()
{
    fin>>n>>m;
    for(i=1; i<=n; i++)
        fin>>rmq[0][i];
    int p=2, nr=0;
    while(p<=n)
    {
        nr++;
        for(i=1; i<=n; i++)
            rmq[nr][i]=min(rmq[nr-1][i], rmq[nr-1][i+p/2]);
        p*=2;
    }
    while(m--)
    {
        fin>>x>>y;
        int lg=y-x+1;
        int pow2=log2(lg);
        fout<<min(rmq[pow2][x], rmq[pow2][y-(1<<pow2)+1])<<'\n';
    }
    return 0;
}