#include <bits/stdc++.h>
#define nmax 100005
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int rmq[25][nmax],n,m,E[nmax];
int main()
{
    fin>>n>>m;
    for(int i=1; i<=n; i++)
        fin>>rmq[0][i];
    for(int p=1; (1<<p)<=n; p++)
    {
        for(int i=1; i<=n; i++)
        {
            rmq[p][i]=rmq[p-1][i];
            int j=i+(1<<(p-1));
            if(j<=n and rmq[p-1][j]<rmq[p][i])
                rmq[p][i]=rmq[p-1][j];
        }
    }
    E[1]=0;
    for(int i=2; i<=n; i++)
        E[i]=1+E[i/2];
    for(int i=1; i<=m; i++)
    {
        int st,dr;
        fin>>st>>dr;
        int e=E[dr-st+1];
        int len=(1<<e);
        fout<<min(rmq[e][st],rmq[e][dr-len+1])<<'\n';
    }
    return 0;
}