#include <fstream>

using namespace std;
int v[1000005];
int main()
{
	ifstream cin("zombie.in");
	ofstream cout("zombie.out");

    int i,j,n,d,k,s=0;
    cin>>n>>d>>k;

    for(i=0;i<n;i++)
	{
		cin>>v[i];
	}

	i=j=s=0;
	while(i<n)
	{
		if(v[i]<=v[j]+d)
			i++;
		else
		{
			if(i-j>=k)
				s+=k;
			else
				s+=i-j;
			j=i;
		}
	}

	if(i-j>k)
		s+=k;
	else
		s+=i-j;

	cout<<s;
    return 0;
}