#include <bits/stdc++.h>
#include <iostream>
#define ll long long
using namespace std;


int main(void){
    int n, q; cin >> n >> q;
    vector<int> arr(n);
    for(int i = 0; i < n; ++i){
        cin >> arr[i];
    }
    vector<int> pref(n, 0);
    for(int i = 1; i < n; ++i){
        pref[i] = pref[i-1];
        if(arr[i-1]>arr[i]) pref[i]++;
    }
    for(int i = 0 ; i< q; ++i){
        int l, r; cin >> l >> r;
        cout << (pref[r-1]==pref[l-1]?"YES\n":"NO\n");
    }
    return 0;

}