from collections import Counter

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

    c = Counter(A)
    num = c[0]
    c = sorted(c.items(), key=lambda x: x[1], reverse=True)
    
    if len(c) >1:
        num += c[1][1] if c[0][0] == 0 else c[0][1]
    else:
        num = c[0][1]
    
    if num >= K:
        print("Yes")
    else:
        print("No")





if __name__ == "__main__":
    main()