#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
#define endl '\n'
#define pi pair<int, int>
#define f first
#define s second
const int maxn = 200000;
int n, m;
vector<int> graph[maxn];
pi dfs(int c){
if(graph[c].empty()) return {1, 1};
pi ret = dfs(graph[c][0]);
if(ret.s == m) ret.f++, ret.s = 0;
for(int i = 1; i < graph[c].size(); i++){
pi p = dfs(graph[c][i]);
if(ret.s + p.s >= m) ret.f += p.f, ret.s = min(ret.s, p.s);
else ret.f += p.f - 1, ret.s = max(ret.s, p.s);
}
ret.s++;
return ret;
}
int main(){
ios::sync_with_stdio(false);
cin.tie(NULL);
cin >> n >> m;
for(int i = 1; i < n; i++){
int x;
cin >> x;
graph[x].push_back(i);
}
cout << dfs(0).f << endl;
return 0;
}
Compilation message
catinatree.cpp: In function 'std::pair<int, int> dfs(int)':
catinatree.cpp:19:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 1; i < graph[c].size(); i++){
~~^~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 3 |
Correct |
12 ms |
4984 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 6 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 7 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 8 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 11 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 14 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 16 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 17 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 19 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 20 |
Correct |
8 ms |
4984 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 3 |
Correct |
12 ms |
4984 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 6 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 7 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 8 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 11 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 14 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 16 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 17 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 19 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 20 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 22 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 23 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 24 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 25 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 26 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 27 |
Correct |
8 ms |
4980 KB |
Output is correct |
| 28 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 29 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 30 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 31 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 32 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 33 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 34 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 35 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 36 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 37 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 38 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 39 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 40 |
Correct |
8 ms |
5112 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 3 |
Correct |
12 ms |
4984 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 6 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 7 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 8 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 11 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 14 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 16 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 17 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 19 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 20 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 22 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 23 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 24 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 25 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 26 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 27 |
Correct |
8 ms |
4980 KB |
Output is correct |
| 28 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 29 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 30 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 31 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 32 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 33 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 34 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 35 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 36 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 37 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 38 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 39 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 40 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 41 |
Correct |
48 ms |
8820 KB |
Output is correct |
| 42 |
Correct |
32 ms |
6648 KB |
Output is correct |
| 43 |
Correct |
31 ms |
6648 KB |
Output is correct |
| 44 |
Correct |
32 ms |
6652 KB |
Output is correct |
| 45 |
Correct |
31 ms |
6648 KB |
Output is correct |
| 46 |
Correct |
67 ms |
8312 KB |
Output is correct |
| 47 |
Correct |
69 ms |
8312 KB |
Output is correct |
| 48 |
Correct |
67 ms |
8312 KB |
Output is correct |
| 49 |
Correct |
66 ms |
8312 KB |
Output is correct |
| 50 |
Correct |
19 ms |
5540 KB |
Output is correct |
| 51 |
Correct |
19 ms |
5628 KB |
Output is correct |
| 52 |
Correct |
20 ms |
5624 KB |
Output is correct |
| 53 |
Correct |
30 ms |
6136 KB |
Output is correct |
| 54 |
Correct |
29 ms |
6136 KB |
Output is correct |
| 55 |
Correct |
32 ms |
6136 KB |
Output is correct |
| 56 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 57 |
Correct |
12 ms |
6520 KB |
Output is correct |
| 58 |
Correct |
31 ms |
12024 KB |
Output is correct |
| 59 |
Correct |
64 ms |
12920 KB |
Output is correct |
| 60 |
Correct |
49 ms |
9204 KB |
Output is correct |
| 61 |
Correct |
58 ms |
8956 KB |
Output is correct |
