#include <iostream>

int nums[1'000'000];

using namespace std;
int main() {

	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, q;
	cin >> n >> q;

	int seq = 1;

	int last;
	cin >> last;
	nums[0] = seq;
	
	int num;
	for (int i = 1; i < n; ++i) {
		cin >> num;
		if (num < last) {
			seq++;
		}
		nums[i] = seq;
		last = num;
	}

	int l, r;
	while (q--) {
		cin >> l >> r;
		if (nums[l - 1] == nums[r - 1]) {
			cout << "YES\n";
		}
		else {
			cout << "NO\n";
		}
	}

	return 0;
}