#include<bits/stdc++.h>
using namespace std;
int n,d;
const int maxn=200000+10;
int dp[maxn];
vector<int>adj[maxn];
vector<pair<int,int>>alln;
void pre(int u=0,int len=0,int par=-1){
alln.push_back(make_pair(len,u));
for(auto x:adj[u]){
if(x!=par){
pre(x,len+1,u);
}
}
}
int res=0;
void upd(int u,int len,int par=-1){
if(len<0||len<=dp[u]){
return ;
}
dp[u]=len;
for(auto x:adj[u]){
if(x!=par){
upd(x,len-1,u);
}
}
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin>>n>>d;
d--;
for(int i=1;i<=n-1;i++){
int f;
cin>>f;
adj[f].push_back(i);
adj[i].push_back(f);
}
for(int i=0;i<n;i++){
dp[i]=-1;
}
pre();
sort(alln.rbegin(),alln.rend());
for(int i=0;i<n;i++){
//cout<<alln[i].first<<" "<<alln[i].second<<" "<<dp[alln[i].second]<<"\n";
if(dp[alln[i].second]==-1){
res++;
upd(alln[i].second,d);
}
}
cout<<res<<"\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 13 |
Correct |
1 ms |
5208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4968 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 18 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 20 |
Correct |
1 ms |
4956 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 13 |
Correct |
1 ms |
5208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4968 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 18 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 20 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 22 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 23 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 24 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 25 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 26 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 27 |
Correct |
2 ms |
5220 KB |
Output is correct |
| 28 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 29 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 30 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 31 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 32 |
Correct |
1 ms |
5212 KB |
Output is correct |
| 33 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 34 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 35 |
Correct |
1 ms |
5212 KB |
Output is correct |
| 36 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 38 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
5212 KB |
Output is correct |
| 40 |
Correct |
1 ms |
5212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 13 |
Correct |
1 ms |
5208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 16 |
Correct |
1 ms |
4968 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 18 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 20 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 21 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 22 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 23 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 24 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 25 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 26 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 27 |
Correct |
2 ms |
5220 KB |
Output is correct |
| 28 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 29 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 30 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 31 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 32 |
Correct |
1 ms |
5212 KB |
Output is correct |
| 33 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 34 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 35 |
Correct |
1 ms |
5212 KB |
Output is correct |
| 36 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 38 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
5212 KB |
Output is correct |
| 40 |
Correct |
1 ms |
5212 KB |
Output is correct |
| 41 |
Correct |
50 ms |
14540 KB |
Output is correct |
| 42 |
Correct |
30 ms |
10248 KB |
Output is correct |
| 43 |
Correct |
35 ms |
10436 KB |
Output is correct |
| 44 |
Correct |
31 ms |
10452 KB |
Output is correct |
| 45 |
Correct |
29 ms |
10452 KB |
Output is correct |
| 46 |
Correct |
94 ms |
15684 KB |
Output is correct |
| 47 |
Correct |
95 ms |
15576 KB |
Output is correct |
| 48 |
Correct |
75 ms |
15560 KB |
Output is correct |
| 49 |
Correct |
71 ms |
15680 KB |
Output is correct |
| 50 |
Correct |
23 ms |
10564 KB |
Output is correct |
| 51 |
Correct |
28 ms |
10732 KB |
Output is correct |
| 52 |
Correct |
25 ms |
10712 KB |
Output is correct |
| 53 |
Correct |
51 ms |
16072 KB |
Output is correct |
| 54 |
Correct |
60 ms |
15952 KB |
Output is correct |
| 55 |
Correct |
49 ms |
16068 KB |
Output is correct |
| 56 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 57 |
Correct |
6 ms |
7388 KB |
Output is correct |
| 58 |
Correct |
26 ms |
15568 KB |
Output is correct |
| 59 |
Correct |
79 ms |
21704 KB |
Output is correct |
| 60 |
Correct |
49 ms |
15312 KB |
Output is correct |
| 61 |
Correct |
56 ms |
15056 KB |
Output is correct |
