#include<iostream>
#include<fstream>
#include <cmath>
using namespace std;
int n,m,nr,rmq[200000][18],in,sf;
int main()
{
	ifstream f("rmq.in");
	ofstream g("rmq.out");
	
	f>>n>>m;
	for(int i=1;i<=n;i++) f>>rmq[i][0];
	for(int j=1;(1<<j)<=n;j++)
	{
		for(int i=1;i+(1<<j)<=n;i++)
		{
			rmq[i][j]=min(rmq[i][j-1], rmq[i+(1<<(j-1))][j-1]);
		}
	}
	for(int i=1;i<=m;i++)
	{
		f>>in>>sf;
		int k=log2(sf-in+1);
		g<<min(rmq[1+sf-(1<<k)][k], rmq[i][k])<<"\n";
	}
	return 0;
}