#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define all(x) begin(x), end(x)
#define rep(i,a,b) for (auto i = a; i < (b); ++i)
#define vi vector<int>
#define pii pair<int,int>

#define W(x) cerr << #x << ": " << (x) << "\n";

int main () {
	cin.tie(0)->sync_with_stdio(0);

	int n;
	cin >> n;
	int q;
	cin >> q;
	vi nums;
	nums.reserve(n);
	rep(i,0,n) {
		int x;
		cin >> x;
		nums.push_back(x);
	}

	vi dif;
	dif.push_back(0);
	int acc = 0 ;
	rep(i,1,n) {
		acc += nums[i-1]>nums[i];
		dif.push_back(acc);
	}

	rep(i,0,q) {
		int l,r;
		cin >> l >> r;
		--l; --r;
		if (dif[r] == dif[l])
			cout << "YES\n";
		else
			cout << "NO\n";
	}

	return 0;
}