import sys
input = sys.stdin.readline

from collections import Counter

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

C=Counter(A)

flag=0

for c in C:
    if c==0:
        if C[c]>=K:
            flag=1
    else:
        if C[c]+C[0]>=K:
            flag=1

if flag==1:
    print("Yes")
else:
    print("No")