N, K = map(int, input().split())
A = list(map(int, input().split()))

zero = 0
D = dict()
for i in range(N):
    if A[i] != 0:
        if A[i] in D:
            D[A[i]] += 1
        else:
            D[A[i]] = 1
    else:
        zero += 1

if len(D) >= 1:
    if max(D.values())+zero >= K:
        print("Yes")
    else:
        print("No")
else:
    if zero >= K:
        print("Yes")
    else:
        print("No")