#include<stdio.h>
using namespace std;
int sol,d,k,x,elem,i,n,v[1000004];
int main()
{
    freopen("zombie.in","r",stdin);
    freopen("zombie.out","w",stdout);
    scanf("%d%d%d",&n,&d,&k);
    int last=1;
    for(i=1;i<=n;i++)
    {
        scanf("%d",&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;
    printf("%d",sol);
    return 0;
}