#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,d[100005][20],i,j,p,x,y;
int main()
{
    f>>n>>m;
    for(i=1;i<=n;i++)
        f>>d[i][0];
    for(j=1;(1<<j)<=n;j++)
        for(i=1;i+(1<<j)-1<=n;i++)
            d[i][j]=min(d[i][j-1],d[i+(1<<(j-1))][j-1]);
    for(i=1;i<=m;i++)
    {
        f>>x>>y;
        p=log2(y-x+1);
        g<<min(d[x][p],d[y-(1<<p)+1][p])<<'\n';
    }
    return 0;
}