#include <iostream>
#include <fstream>
#include <cmath>
#define Nmax 100001
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int v[Nmax],m[Nmax][21],n,m2,x,y,l;
int main()
{
    f>>n>>m2;
    for(int i=1;i<=n;i++)
    {
        m[i][0]=i;
        f>>v[i];
    }
    for(int j=1;(1<<j)<=n;j++)
        for(int i=1;i+(1<<j)-1<=n;i++)
    {
        if(v[m[i][j-1]]>v[m[i+(1<<(j-1))][j-1]]) m[i][j]=m[i+(1<<(j-1))][j-1];
        else m[i][j]=m[i][j-1];
    }
    for(int i=1;i<=m2;i++)
    {
        f>>x>>y;
        l=log2(y-x+1);
        g<<min(v[m[x][l]],v[m[y-(1<<l)+1][l]])<<'\n';
    }
    return 0;
}