#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;

int main(){
  ll n,k;
  cin>>n>>k;
  map<ll,ll> mp;
  for(ll i=0;i<n;i++){
    ll a;
    cin>>a;
    mp[a]++;
  }
  bool ok=false;
  for(auto [ke,v]:mp){
    if(ke==0){
      continue;
    }
    if(mp[0]+mp[ke]>=k){
      ok=true;
    }
  }
  if(mp[0]>=k){
    ok=true;
  }
  if(ok){
    cout<<"Yes"<<endl;
  }else{
    cout<<"No"<<endl;
  }
}