#include <bits/stdc++.h>
using namespace std ;
const int MAX = 2e5 + 10 ;
int dep[MAX] ;
int n , d ;
vector< vector<int> >adj(MAX) ;
int ans = 0 ;
int dfs(int node)
{
vector<int>v ;
ans++ ;
v.push_back(dep[node]) ;
for(auto &child : adj[node])
{
dep[child] = dep[node] + 1 ;
v.push_back(dfs(child)) ;
}
sort(v.begin() , v.end()) ;
reverse(v.begin() , v.end()) ;
while(v.size() >= 2 && v[v.size()-1] + v[v.size()-2] - 2*dep[node] < d)
v.pop_back() , ans-- ;
return v.back() ;
}
int main()
{
ios_base::sync_with_stdio(0) ;
cin.tie(0) ;
cin>>n>>d ;
for(int i = 2 ; i <= n ; ++i)
{
int p ;
cin>>p ;
adj[p+1].push_back(i) ;
}
dfs(1) ;
return cout<<ans<<"\n" , 0 ;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 7 |
Correct |
5 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 9 |
Correct |
4 ms |
5036 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 14 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 15 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4940 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 7 |
Correct |
5 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 9 |
Correct |
4 ms |
5036 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 14 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 15 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
5196 KB |
Output is correct |
| 22 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 23 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 24 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 25 |
Correct |
4 ms |
4964 KB |
Output is correct |
| 26 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5040 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 29 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5044 KB |
Output is correct |
| 31 |
Correct |
5 ms |
5040 KB |
Output is correct |
| 32 |
Correct |
5 ms |
4940 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5032 KB |
Output is correct |
| 34 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5036 KB |
Output is correct |
| 36 |
Correct |
5 ms |
4940 KB |
Output is correct |
| 37 |
Correct |
4 ms |
5048 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5040 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5196 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 3 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 5 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 7 |
Correct |
5 ms |
4940 KB |
Output is correct |
| 8 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 9 |
Correct |
4 ms |
5036 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 13 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 14 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 15 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 16 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 19 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 21 |
Correct |
4 ms |
5196 KB |
Output is correct |
| 22 |
Correct |
3 ms |
4940 KB |
Output is correct |
| 23 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 24 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 25 |
Correct |
4 ms |
4964 KB |
Output is correct |
| 26 |
Correct |
4 ms |
4940 KB |
Output is correct |
| 27 |
Correct |
4 ms |
5040 KB |
Output is correct |
| 28 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 29 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 30 |
Correct |
4 ms |
5044 KB |
Output is correct |
| 31 |
Correct |
5 ms |
5040 KB |
Output is correct |
| 32 |
Correct |
5 ms |
4940 KB |
Output is correct |
| 33 |
Correct |
4 ms |
5032 KB |
Output is correct |
| 34 |
Correct |
4 ms |
4952 KB |
Output is correct |
| 35 |
Correct |
4 ms |
5036 KB |
Output is correct |
| 36 |
Correct |
5 ms |
4940 KB |
Output is correct |
| 37 |
Correct |
4 ms |
5048 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5068 KB |
Output is correct |
| 39 |
Correct |
4 ms |
5040 KB |
Output is correct |
| 40 |
Correct |
4 ms |
5196 KB |
Output is correct |
| 41 |
Correct |
53 ms |
10840 KB |
Output is correct |
| 42 |
Correct |
36 ms |
7588 KB |
Output is correct |
| 43 |
Correct |
41 ms |
7524 KB |
Output is correct |
| 44 |
Correct |
41 ms |
7496 KB |
Output is correct |
| 45 |
Correct |
37 ms |
7472 KB |
Output is correct |
| 46 |
Correct |
87 ms |
10076 KB |
Output is correct |
| 47 |
Correct |
83 ms |
10080 KB |
Output is correct |
| 48 |
Correct |
87 ms |
10176 KB |
Output is correct |
| 49 |
Correct |
96 ms |
10180 KB |
Output is correct |
| 50 |
Correct |
25 ms |
6280 KB |
Output is correct |
| 51 |
Correct |
28 ms |
6316 KB |
Output is correct |
| 52 |
Correct |
24 ms |
6280 KB |
Output is correct |
| 53 |
Correct |
45 ms |
7620 KB |
Output is correct |
| 54 |
Correct |
45 ms |
7700 KB |
Output is correct |
| 55 |
Correct |
46 ms |
7716 KB |
Output is correct |
| 56 |
Correct |
4 ms |
5176 KB |
Output is correct |
| 57 |
Correct |
11 ms |
8632 KB |
Output is correct |
| 58 |
Correct |
46 ms |
21416 KB |
Output is correct |
| 59 |
Correct |
77 ms |
24104 KB |
Output is correct |
| 60 |
Correct |
61 ms |
11376 KB |
Output is correct |
| 61 |
Correct |
64 ms |
10820 KB |
Output is correct |
