#include<fstream>
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int n,m,i,j,a,b,x,p,v[50][100010];
int put (int a)
{
    int ans,pu;
    ans=1;
    pu=0;
    while(ans<=a)
    {
        ans*=2;
        pu++;
    }
    pu--;
    return pu;
}
int main()
{
    fin>>n>>m;
    for(i=1;i<=n;i++)
        fin>>v[0][i];
    for(i=1;(1<<i)<=n;i++)
    {
        for(j=1;j+(1<<i) -1 <=n;j++)
        {
            v[i][j]=min(v[i-1][j],v[i-1][j + (1<<(i-1))]);
        }
    }
    for(i=1;i<=m;i++)
    {
        fin>>a>>b;
        x=b-a+1;
        p=put(x);
        fout<<min(v[p][a],v[p][b-(1<<p)+1])<<'\n';
    }

    fin.close();
    fout.close();
    return 0;
}