#include <iostream>
#include <vector>
using namespace std;
int main() {
    int n, q;
    cin >> n >> q;
    vector<int> prefix = {0};
    int last;
    cin >> last;
    for (int i = 0; i < n-1; i++) {
        int curr;
        cin >> curr;
        if (curr < last) {
            prefix.push_back(0);
        } else {
            prefix.push_back(prefix[prefix.size()-1] + 1);
        }
        last = curr;
    }
    for (int i = 0; i < q; i++) {
        int s, e;
        cin >> s >> e;
        //cout << prefix[e-1] << "-" << prefix[s-1] << " " << e << "-" << s << ":";
        if (prefix[s-1] - prefix[e-1] == s - e) {
            cout << "YES" << endl;
        } else {
            cout << "NO" << endl;
        }

    }
}