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

int main() {
    int n, k;
    cin >> n >> k;
    vector<int> cnt(100010);
    for (int i = 0; i < n; i++) {
        int a;
        cin >> a;
        cnt[a]++;
    }
    int mx = 0;
    for (int i = 1; i < 100010; i++) {
        mx = max(mx, cnt[i]);
    }
    int zero = cnt[0];
    cout << (mx + zero >= k ? "Yes" : "No") << endl;
}