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

using ll = long long;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using pii = pair<int,int>;
using vll = vector<ll>;
using str = string;
using vstr = vector<string>;

#define PB push_back
#define ALL(x) (x).begin() (x).end()
#define FOR(i,s,f) for(int (i) = (s); i < (f); i++)

int main(){
    long long n, q;
    cin >> n >> q;

    vector<long long> prefixy(n, 0);

    long long a;
    cin >> a;
    for (long long i = 1; i < n; i++)
    {
        long long b;
        cin >> b;

        prefixy[i] = prefixy[i - 1];
        if (a > b) ++prefixy[i];

        a = b;
    }

    while (q--) {
        long long l, r;
        cin >> l >> r;

        l--; r--;

        if (prefixy[l] == prefixy[r])
        {
            cout << "YES" << '\n';
        }
        else
        {
            cout << "NO" << '\n';
        }
    }
}