#include<iostream>
#include<fstream>
#include<algorithm>
using namespace std;
int sol,d,k,x,elem,i,n,v[10000004];
int main()
{
    ifstream cin("zombie.in");
    ofstream cout("zombie.out");
    cin>>n>>d>>k;
    int last=1;
    for(i=1;i<=n;i++)
    {
        cin>>v[i];
        if(v[i]-v[last]>=d){
               sol+=min(k,i-last);
               last=i;
            }
        }
    
    sol+=min(k,i-last);
    cout<<sol;
    return 0;
}