#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
using namespace std;
typedef pair<int, int> P;
int k, a[100000], dist[100000];
vector<int> v[100000];
vector<P> w;
bool b[100000];
void cal(int x, int y){
    dist[x] = y;
    b[x] = false;
    w.push_back(P(y, x));
    for(int i=0;i<v[x].size();i++){
        cal(v[x][i], y+1);
    }
}
int hin(int x, int y){
    if(b[x])return 0;
    b[x] = true;
    if(x == 0 || (a[x] == 0 && y == k-1))return 0;
    if(y == k-1)return 1;
    return hin(a[x], y+1);
}
int main() {
    int n, ans = 0;
    cin >> n >> k >> a[0];
    if(--a[0] != 0)ans++;
    for(int i=1;i<n;i++){
        cin >> a[i];
        v[--a[i]].push_back(i);
    }
    cal(0, 0);
    sort(w.begin(), w.end(), greater<P>());
    for(int i=0;i<w.size();i++){
        int p = w[i].second;
        if(!b[p]){
            ans += hin(p, 0);
        }
    }
    cout << ans << endl;
	return 0;
}

#include <bits/stdc++.h>

using namespace std;

#define N 100000
#define pb push_back

int n, k, len, a[N + 5], d[N + 5], vis[N + 5], ans;
vector<int> G[N + 5];

struct Cmp {
	bool operator () (const int &a, const int &b) const {
		return d[a] < d[b];
	}
};
priority_queue<int, vector<int>, Cmp> pq;

void dfs1(int u) {
	for (int i = 0, v; i < G[u].size(); ++i) {
		v = G[u][i];
		d[v] = d[u] + 1;
		dfs1(v);
	}
}

void dfs2(int u) {
	len++;
	if (u == 1)
		return ;
	dfs2(a[u]);
}

void mark(int u) {
	vis[u] = 1;
	for (int i = 0, v; i < G[u].size(); ++i) {
		v = G[u][i];
		if (vis[v])
			continue;
		mark(v);
	}
}

int main() {
	scanf("%d%d", &n, &k);
	for (int i = 1; i <= n; ++i)
		scanf("%d", &a[i]);
	dfs2(a[1]);
	for (int i = 2; i <= n; ++i)
		G[a[i]].pb(i);
	dfs1(1);
	bool flag = 1;
	for (int i = 1; i <= n; ++i)
		if (d[i] > k || (k - d[i]) % len) {
			flag = 0;
			break;
		}
	if (flag)
		ans = 0;
	else {
		if (a[1] != 1) ans = 1;
		else ans = 0;
		a[1] = 1;
		for (int i = 2; i <= n; ++i)
			pq.push(i);
		while (!pq.empty()) {
			int u = pq.top(), v; pq.pop();
			if (d[u] <= k || vis[u])
				continue;
			ans++;
			v = u;
			for (int i = 1; i <= k - 1; ++i)
				v = a[v];
			a[v] = 1;
//			printf("u:%d v:%d\n", u, v);
			mark(v);
		}
	}
	printf("%d\n", ans);
//	for (int i = 1; i <= n; ++i) printf("%d ", a[i]);
//	printf("\n");
	return 0;
}