#include<bits/stdc++.h>
#define int long long
#define ull unsigned long long
#define ls(k) (k)<<1
#define rs(k) (k)<<1|1
#define debug(x) cout<<#x<<"="<<x<<endl
using namespace std;
const int inf=0x3f3f3f3f3f3f3f3f;
const int mod=0;
typedef pair<int,int> pii;
vector<int> ve[100005];
int k,ans,dep[100005];
void dfs(int x,int fa){
    int maxx=0;
    for(auto to:ve[x]){
        dfs(to,x);
        maxx=max(maxx,dep[to]);
    }
    if(x==1) return;
    if(maxx+1==k){
        if(fa!=1) ans++;
        dep[x]=0;
    }
    else dep[x]=maxx+1;
}
inline void subtask(){
    int n;cin>>n>>k;
    for(int i=1;i<=n;i++){
        int x;cin>>x;
        if(i==1){
            if(x!=1) ans++;
            continue;
        }
        ve[x].push_back(i);
    }
    dfs(1,0);
    cout<<ans;
}
signed main(){
    //freopen("gate.in","r",stdin);
    //freopen("gate.out","w",stdout);
    ios::sync_with_stdio(false);
    int t=1;//cin>>t;
    while(t--) subtask();
    return 0;
}