#include <iostream>
#include <math.h>
#include <vector>

int main() {
    int n, t;
    std::cin>>n>>t;

    int minn = 0;
    std::vector<int> arr(n);
    std::vector<int> lastCorrectIndex(n);
    for(size_t i = 0; i < n; i++) {
        std::cin>>arr[i];

        if(i != 0 && arr[i] < arr[i-1])
            minn = i;

        lastCorrectIndex[i] = minn;
    }

    while(t--)
    {
        int l, r;
        std::cin>>l>>r;

        if(lastCorrectIndex[l-1] == lastCorrectIndex[r-1])
            std::cout<<"YES\n";
        else
            std::cout<<"NO\n";
    }
}