#include <fstream>
using namespace std;

const int N=100002,M=18,inf=1<<30;
int a[N][M],n;

ifstream in("rmq.in");
ofstream out("rmq.out");

void RMQ()
{
	for (int i=n;i;i--)
		for (int j=1,k=1;i+(k<<1)<=n+1;j++,k<<=1)
			a[i][j]=min(a[i][j-1],a[i+k][j-1]);
}

inline int query(int x,int y)
{
	if (!y)
		return inf;
	int p,q;
	for (p=0,q=1;q<=y;p++,q<<=1);
	q>>=1;p--;
	return min(a[x][p],query(x+q,y-q));
}

int main()
{
	int t,i,x,y;
	in>>n>>t;
	for (i=1;i<=n;i++)
		in>>a[i][0];
	RMQ();
	while (t--)
	{
		in>>x>>y;
		out<<query(x,y-x+1)<<"\n";
	}
	return 0;
}