#include <bits/stdc++.h>

using namespace std;
using ll = long long;

void process() {
    ll n, q;
    cin >> n >> q;

    vector<ll> a(n);

    for (ll i = 0; i < n; ++i) {
        cin >> a[i];
    }

    vector<ll> s(n);
    s[0] = 0;
    for (ll i = 1; i < n; ++i) {
        ll c = a[i];
        ll p = a[i - 1];
        if (p <= c) {
            s[i] = s[i - 1];
        } else {
            s[i] = s[i - 1] + 1;
        }
    }

    for (ll i = 0; i < q; ++i) {
        ll from, to;
        cin >> from >> to;

        --from;
        --to;

        ll begin = s[from];
        ll end = s[to];
        if (begin != end) {
            cout << "NO\n";
        } else {
            cout << "YES\n";
        }
    }
}

int main() {
    std::ios::sync_with_stdio(false);
    process();
    cout.flush();
    return 0;
}