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

void solve() {
    int n, q;
    cin >> n >> q;

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

    vector<int> prefixy(n);
    int prev = a[0];
    int good_index = 0;
    for(int i = 0; i < n; i++) {
        if(prev > a[i]) {
            good_index = i;
        }
        prefixy[i] = good_index;
        prev = a[i];
    }

    for(int i = 0; i < n; i++) {
        cout << i << ". " << a[i] << ": " << prefixy[i] << endl;
    }

    for(int i = 0; i < q; i++) {
        int l, r;
        cin >> l >> r;
        l--;
        r--;
        if(l >= prefixy[r])
            cout << "YES" << endl;
        else
            cout << "NO" << endl;
    }
}

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int t = 1;
    while(t--) {
        solve();
    }
    return 0;
}