from collections import defaultdict
N,K=map(int,input().split())
A=list(map(int,input().split()))

count=defaultdict(lambda: 0)

for i in range(len(A)):
  count[A[i]]+=1

_0count=count[0]

for key in count:
  if key==0:
    if count[0]>=K:
      print("Yes")
      exit()
  elif count[key]+_0count>=K:
    print("Yes")
    exit()
print("No")