from collections import Counter


def main():
    N, K = map(int, input().split())
    A = []
    zero_ctr = 0
    for elm in map(int, input().split()):
        if elm == 0:
            zero_ctr += 1
        else:
            A.append(elm)
    ctr_A = Counter(A)
    if ctr_A:
        max_n = max(ctr_A.values())
    else:
        max_n = 0
    if max_n >= K:
        print("Yes")
        return
    if zero_ctr >= K:
        print("Yes")
        return
    if max_n + zero_ctr >= K:
        print("Yes")
        return
    print("No")


if __name__ == "__main__":
    main()