#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
#define st first
#define nd second
const ll maxn = 2000000+912;
int t[maxn];
int pi[maxn];
int siz[maxn];
pii dep[maxn]; // {odleglosc , wierzcholek}
vector <int> tri[maxn];
bool czyS[maxn];
int n , D , T;
const int base = (1 << 21);
bool czy[base*2];
int Qp(int X )
{
////cerr << X << '\n';
X += base;
while(X)
{
if(czy[X])return 1;
X /= 2;
}
return 0;
}
void Up(int l , int r)
{
////cerr << l << ' ' << r << '\n';
if(r < l)return ;
l += base;
r += base;
l--;
r++;
while(l/2 != r/2)
{
if((l&1) == 0)czy[l+1] = 1;
if((r&1) == 1)czy[r-1] = 1;
l /= 2;
r /= 2;
}
}
bool zap[base*2];
void DFS(int v)
{
dep[v] = {1,v};
siz[v] = 1;
for(auto p : tri[v])
{
DFS(p);
siz[v] += siz[p];
dep[v] = max(dep[v] , {dep[p].st+1 , dep[p].nd});
}
//cerr << v << ": " << dep[v].st << ' ' << dep[v].nd << ' ' << siz[v] << '\n';
}
priority_queue <pii> Q;
int ido(int X)
{
int ile =0;
while(X != -1 && zap[X])
{
ile++;
zap[X] = 0;
//cerr << X << ' ' << tri[X].size() << '\n';
for(auto p : tri[X])
{
if(zap[p] == 0)continue;
Q.push({dep[p].st,dep[p].nd});
}
X = pi[X];
}
return ile;
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> D >> T;
for(int i = 1; i<= n ;i++)
{
cin >> t[i];
t[i] = T-t[i];
zap[i] = 1;
}
stack <int > stck;
for(int i = n ; i >= 1 ; i--)
{
if(t[i] >= 0)
{
pi[i] = -2;
////cerr << i << ' ' << i+t[i] << '\n';
Up(i , min(i+t[i],n+123));
continue;
}
while(stck.size() && Qp(stck.top()))stck.pop();
if(stck.size() == 0)pi[i] = -1;
else pi[i] = stck.top();
stck.push(i);
}
for(int i = n ; i >= 1; i--)
{
if(t[i] >= 0)continue;
if(!Qp(i))czyS[i] = 1;
}
vector <int> roots;
int res = 0;
int R1 = -1;
vector<int> freee;
for(int i = n; i >= 1 ; i--)
{
if(pi[i] == -1){roots.push_back(i);}
else if(pi[i] != -2)
{
//cerr << "KRAWEDAZ\n";
tri[pi[i]].push_back(i);
}
if(czyS[i] == 1)freee.push_back(i);
//cerr << i << ' ' << pi[i] << ' ' << '\n';
}
for(auto p : roots)
{
if(zap[p] == 0)continue;
DFS(p);
Q.push({dep[p].st,p});
}
for(auto p : freee)
{
if(zap[p] == 0)continue;
res += ido(p);
}
int lim = 0;
while(!Q.empty() && lim < D)
{
auto p = Q.top();
//cerr <<"Q:" << p.st << ' ' << p.nd << '\n';
Q.pop();
if(zap[p.nd] == 0)continue;
lim++;
res += p.st;
ido(dep[p.nd].nd);
}
cout << n-res << '\n';
return 0;
}
