// Include
#include <fstream>
#include <algorithm>
using namespace std;

// Constante
const int sz = (int)1e5+1;
const int lgsz = 21;

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

int num, questions;
int lg[sz];
int rmq[lgsz][sz];

// Main
int main()
{
	in >> num >> questions;
	for(int i=1 ; i<=num ; ++i)
		in >> rmq[0][i];
	
	for(int i=2 ; i<=num ; ++i)
		lg[i] = lg[i/2] + 1;
	
	
	for(int i=1 ; (1<<i) <=num ; ++i)
		for(int j=1 ; j<=num-(1<<i)+1 ; ++j)
			rmq[i][j] = min(rmq[i-1][j], rmq[i-1][j+(1<<i-1)]);
	
	while(questions--)
	{
		int left, right;
		in >> left >> right;
		int dist = right - left+1;
		int log = lg[dist];
		int val = min(rmq[log][left], rmq[log][right-(1<<log)+1]);
		out << val << '\n';
	}
	
	
	in.close();
	out.close();
	return 0;
}