#include <bits/stdc++.h>

using namespace std;
#define ld long double
#define ll long long

int n, q;
int a[2010101];
int pref[2010101];

int main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n >> q;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    
    for (int i = 2; i <= n; i++) {
        if (a[i - 1] > a[i]) pref[i]++;
    }
    for (int i = 1; i <= n; i++) {
        pref[i] += pref[i - 1];
    }

    for (int i = 1; i <= q; i++) {
        int l, r;
        cin >> l >> r;
        
        int cnt = pref[r] - pref[l];
        if (cnt == 0) cout << "YES\n";
        else cout << "NO\n";
    }

    return 0;
}

/*
7 5
1 2 3 2 4 -1 -1
2 4
3 4
4 4
4 5
5 6

*/