#include<iostream>
#include<fstream>
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(i!=1)
        {
            if(v[i]-v[last]>=d){
                if(i-last>k)
                    sol+=k;
                else
                    sol+=i-last;
                last=i;
            }
        }
    }
    if(n-last>k)
        sol+=k;
    else 
        sol+=i-last;
    cout<<sol;
    return 0;
}