#include "bits/stdc++.h"
#define int long  long
#define dick vector<int>
#define full(a) a.begin(), a.end()
using namespace std;

using vi = vector<int>;
using vvi = vector<vi>;
using pii = pair<int, int>;
#define V vector
#define Vi = V<int>
#define all(a) a.begin(), a.end()

int len(int n) {
    return log10(n)+1;
}

bool solveV() {
    int n, a, b; cin >> n >> a >> b;
    cout << len(n) << ' ' << len(b) << ' ' << len(a) << '\n';
    if(n != a*b) return false;
    if(len(a) != len(b) || len(n) != len(a)*2) return false;
    if(a%10 == 0 && b % 10 == 0) return false;
    array<int, 10> n_d = {0}, a_d = {0};
    while(n) {
        n_d[n%10]++; n/= 10;
    }
    while(a) {
        a_d[a%10]++; a/=10;
    }
    while(b) {
        a_d[b%10]++; b/=10;
    }
    for(int i=0; i<10; i++) if(a_d[i] != n_d[i]) return false;
    return true;
}

double dist(int x, int y) {
    return sqrt(x*x*1.0 + y*y + 0.0);
}

void solveA() {
    vector<pair<int, int>> a(3);
    for(int i = 0; i<3; i++) {
        cin>>a[i].first>>a[i].second;
    }

    double mn = INT_MAX, mi = -1;
    for(int i = 0; i<3; i++) {
        pii other1 = a[(i+1) % 3];
        pii other2= a[(i+2) % 3];
        if(dist(other1.first - a[i].first, other2.second - a[i].second) < mn) {
            mn = dist(other1.first - a[i].first, other2.second - a[i].second);
            mi = i;
        }
        if(dist(other2.first - a[i].first, other1.second - a[i].second) < mn) {
            mn = dist(other2.first - a[i].first, other1.second - a[i].second);
            mi = i;
        }
    }

    cout<<fixed<<setprecision(6)<<mn<<endl;
}
void mv (){
    int n, q;
    cin>>n>>q;
    dick a(n);
    for(int i =0 ;i < n ;i ++){
        cin>>a[i];
    }
    dick b(n);
    dick c(n);
    for(int i = 1;i < n ;i ++){
        if( a[i] < a[i-1] )b[i]  =-1;
    }
    for(int i = 1 ;i < n;i++){
        c[i] = c[i- 1] + b[i];
    }
    while(q--){
        int r, l;
        cin>>r>> l;
        r--;l --;
        if(c[r] - c[l] != 0 ){
            cout<< "NO\n";
        }
        else cout<< "YES\n";
    }
    return;
}
signed main() {
    mv();
    return 0;
}