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

int main() {
    int n, q;
    scanf("%d %d", &n, &q);

    vector<int> nums(n, 0);
    vector<int> dec(n, 0);

    int last = -1e9;

    for (int i = 0; i < n; ++i) {
        scanf("%d", &nums[i]);
        dec[i] = nums[i] < last;
        last = nums[i];
    }

    vector<int> acc(n, 0);
    for (int i = 1; i < n; ++i) {
        acc[i] = acc[i-1] + dec[i];
    }


    for (int i = 0; i < q; ++i) {
        int a, b;
        scanf("%d %d", &a, &b);

        if (acc[a-1] == acc[b-1]){
            printf("YES\n");
        } else {
            printf("NO\n");
        }
    
    }



    return 0;
}