#include<fstream>
//#include<iostream>
#include<cmath>
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int rmq[100002][18], n, m, v[100005];
int main ()
{
    fin>>n>>m;
    for(int i=1; i<=n;++i)
    {
        fin>>v[i];
        rmq[i][0]=v[i];
    }
    for(int j=1;j<=18;++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]);//(1<<j)=2^j*1
        }

    }
    for(int i=1; i<=m;++i)
    {
        int st, dr;
        fin>>st>>dr;
        int k=log2(dr-st+1);
        fout<<min(rmq[st][k],rmq[dr-(1<<k)+1][k]);
    }
}