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#include <iostream>
#include <vector>
using namespace std;
string profArrabbiato(vector<int> a, int k);
int main()
{
vector<int> vec(4);
int k=2;
vec[0] = -1;
vec[1] = 2;
vec[2] = 0;
vec[3] = 1;
cout<<profArrabbiato(vec,k);
return 0;
}
string profArrabbiato(vector<int> a, int k)
{
int contPuntuali =0;
for(int i=0; i<a.size();i++)
{
if(a[i]>=0)
contPuntuali++;
}
if(contPuntuali>=k)
return "YES";
else
return "NO";
}