#include <bits/stdc++.h>
#include <random>

using namespace std;

typedef unsigned long long ull;
typedef long long ll;
typedef double ld;
#define int ll
typedef vector<char> vc;
typedef vector<vc> vvc;
typedef vector<vvc> vvvc;
typedef pair<int, int> pii;
typedef pair<pii, pii> piii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<pii> vpi;
typedef vector< vi > vvi;
typedef vector< vvi > vvvi;
typedef vector<short> vs;
typedef vector<vs> vvs;
typedef vector<vvs> vvvs;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<vvl> vvvl;
typedef vector<ld> vld;
typedef vector<vld> vvld;
typedef vector<vvld> vvvld;
typedef vector<string> vst;
typedef vector<vst> vvst;
typedef pair<ld, ld> pld;

#define inmin(a, b) a = min(a, (b))
#define inmax(a, b) a = max(a, (b))
#define ALL(a) a.begin(),a.end()
#define RALL(a) a.rbegin(),a.rend()
#define sqr(x) ((x) * (x))
#define fori(i, n) for(int i = 0; i < int(n); ++i)
#define SZ(a) ((int)((a).size()))
#define triple(T) tuple<T, T, T>
#define quad(T) tuple<T, T, T, T>
#define watch(x) cerr << (#x) << " = " << (x) << endl;

#ifdef RUS_HOME
#define cerr cout
#else
#define cerr if (false) cerr
#endif

const double PI = 2 * acos(0.0);
#define rand shittttty_shit
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng_64(chrono::steady_clock::now().time_since_epoch().count());

const string DIGITS = "0123456789";
const string ALPH = "abcdefghijklmnopqrstuvwxyz";


template <class T0, class T1>
inline ostream & operator << (ostream &out, pair<T0, T1> &a) {
    return out << "{" << a.first << ", " << a.second << "}";
}

template <class T0, class T1>
inline istream & operator >> (istream &in, pair<T0, T1> &a) {
    return in >> a.first >> a.second;
}

template <class T0, class T1, class T2>
inline ostream & operator << (ostream &out, tuple<T0, T1, T2> &a) {
    return out << "{" << get<0>(a) << ", " << get<1>(a) << ", " << get<2>(a) << "}";
}

template <class T0, class T1, class T2, class T3>
inline ostream & operator << (ostream &out, tuple<T0, T1, T2, T3> &a) {
    return out << "{" << get<0>(a) << ", " << get<1>(a) << ", " << get<2>(a) << ", " <<  get<3>(a) << "}";
}

template<class T>
inline ostream & operator << (ostream &out, vector<T> &a) {
    out << "[";
    fori (i, a.size())
        out << a[i] << vector<string>{", ", "]  "}[i + 1 == a.size()];
    return out;
}


void smain();



signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
#ifdef RUS_HOME
    freopen("input", "r", stdin);
    clock_t start = clock();
#endif
    cout << setprecision(12) << fixed;
    smain();
#ifdef RUS_HOME
    cout << "\n\n\n\nTOTAL EXECUTION TIME: " << float( clock () - start ) /  CLOCKS_PER_SEC << endl;
#endif
    return 0;
}

const int oo=1e10,N=1e5+100;

int q[N];

void smain() {

    int n,k;
    cin>>n>>k;
    vi a(n);
    vi g[n];
    for(int i=0;i<n;i++){
        cin>>a[i];
        a[i]--;
        if(i)
            g[a[i]].push_back(i);
    }

    vi d(n,-1);
    d[0]=0;
    int st=0,fn=1;
    q[st]=0;
    while(st!=fn){
        int v=q[st++];
        for(auto p:g[v]){
            if(d[p]==-1){
                d[p]=d[v]+1;
                q[fn++]=p;
            }
        }
    }
    int cur=0;
    set<int>s;
    set<pii>y;

    vi used(n);
    for(int i=0;i<n;i++){
        if(i)
            s.insert(d[0]);
        if(d[i]<=k){
            cur++;
        }else{
            y.insert({d[i],i});
        }
    }

    if(cur==n){
        if(a[0]==0){
            cout<<0;
        }else {
            cout<<1;
        }
        return;
    }
    int ans=0;
    while(SZ(y)){
        auto it=y.end();it--;
        int p=(*it).second;
        ans++;
        for(int i=0;i<k-1;i++){
            p=a[p];
        }
        st=0; fn=0;
        q[fn++]=p;
        used[p]=1;
        while(st!=fn){
            int v=q[st++];
            y.erase({d[v],v});
            for(auto p:g[v]){
                if(!used[p]){
                    used[p]=1;
                    q[fn++]=p;
                }
            }
        }
    }


    if(a[0]==0)
        cout<<ans;
    else
        cout<<ans+1;




}

Measured memory_bytes: 15104