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


int main() {
    int N,K;
    cin >> N >> K;
    int checker =0;
    map<int, int> poker; 
    for(int i=0;i<N;i++){
        int Ai;
        cin >> Ai;
        if (poker.count(Ai)) poker[Ai]++;
        else poker[Ai]=1;
        int M = poker.rbegin()->second;
        if(poker.count(0)){
          if (M>=(K-poker.at(0))) checker=1;
        }
        else if(M>=K) checker=1;
    }
    if(checker=1) cout << "Yes" << endl;
    else cout << "No" << endl;
}