#include <iostream>
#include <vector>

using namespace std;

int main()
{
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    int N, K, i;
    cin >> N >> K;
    vector<int> A(N), count(100001, 0);
    for (i = 0; i != N; ++i)
        cin >> A[i];

    for (i = 0; i != N; ++i)
        ++count[A[i]];

    for (i = 1; i <= 100000; ++i)
        if (count[i] + count[0] >= K)
        {
            cout << "Yes\n";
            return 0;
        }

    cout << "No\n";
    return 0;
}