#include <iostream>
#include <vector>
using namespace std;

int main() {
    int n, q;
    cin >> n >> q;
    vector<int> v(n);
    vector<int[2]> indices(q);

    for (int i = 0; i < n; i++) {
        cin >> v[i];
    }
    for (int i = 0; i < q; i++) {
        cin >> indices[i][0] >> indices[i][1];
    }

    string memo[n][n];
    for (int i = 0; i < n; i++) {
        bool previous = true;
        for (int j = i; j < n; j++) {
            if (v[i] <= v[j] && previous) {
                memo[i][j] = "YES";
            } else {
                previous = false;
                memo[i][j] = "NO";
            }
        }
    }

    for (int i = 0; i < q; i++) {
        cout << memo[indices[i][0]-1][indices[i][1]-1] << endl;
    }
}