#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pii;
#define ff first
#define ss second
#define MP make_pair
template<typename T> void ono_min(T &MIN, T CMP) { if(MIN > CMP) MIN = CMP; }
template<typename T> void ono_max(T &MAX, T CMP) { if(MAX < CMP) MAX = CMP; }
const int inf = 1e9 + 10;
const int mxn = 2e5 + 10;
int dis[mxn], dp[mxn];
vector<int> adj[mxn];
int n, d, ans;
void dfs(int u, int p = 0) {
int mx = inf, cnt = 0;
for(int v : adj[u]) {
if(v == p) continue;
dfs(v, u);
if(mx + dis[v] >= d) {
cnt += dp[v];
ono_min(mx, dis[v]);
} else {
cnt += dp[v] - 1;
ono_max(mx, dis[v]);
}
}
if(mx >= d) {
dis[u] = 1;
dp[u] = cnt + 1;
} else {
dis[u] = mx + 1;
dp[u] = cnt;
}
ono_max(ans, dp[u]);
}
int main() {
cin >> n >> d;
for(int i = 1, j; i < n; i++) {
cin >> j;
adj[i].push_back(j);
adj[j].push_back(i);
}
dfs(0);
cout << ans << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 8 |
Correct |
1 ms |
5132 KB |
Output is correct |
| 9 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 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 |
4956 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 |
2 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 8 |
Correct |
1 ms |
5132 KB |
Output is correct |
| 9 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 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 |
4956 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 |
2 ms |
4956 KB |
Output is correct |
| 24 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 25 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 26 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 27 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 29 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 30 |
Correct |
2 ms |
5144 KB |
Output is correct |
| 31 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 32 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 33 |
Correct |
2 ms |
5144 KB |
Output is correct |
| 34 |
Correct |
2 ms |
5128 KB |
Output is correct |
| 35 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 36 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
5144 KB |
Output is correct |
| 38 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 39 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 40 |
Correct |
3 ms |
5464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 8 |
Correct |
1 ms |
5132 KB |
Output is correct |
| 9 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4952 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4956 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 |
4956 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 |
2 ms |
4956 KB |
Output is correct |
| 24 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 25 |
Correct |
2 ms |
4956 KB |
Output is correct |
| 26 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 27 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5212 KB |
Output is correct |
| 29 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 30 |
Correct |
2 ms |
5144 KB |
Output is correct |
| 31 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 32 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 33 |
Correct |
2 ms |
5144 KB |
Output is correct |
| 34 |
Correct |
2 ms |
5128 KB |
Output is correct |
| 35 |
Correct |
2 ms |
4952 KB |
Output is correct |
| 36 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
5144 KB |
Output is correct |
| 38 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 39 |
Correct |
2 ms |
5212 KB |
Output is correct |
| 40 |
Correct |
3 ms |
5464 KB |
Output is correct |
| 41 |
Correct |
54 ms |
13520 KB |
Output is correct |
| 42 |
Correct |
33 ms |
9556 KB |
Output is correct |
| 43 |
Correct |
33 ms |
9672 KB |
Output is correct |
| 44 |
Correct |
32 ms |
9648 KB |
Output is correct |
| 45 |
Correct |
32 ms |
9556 KB |
Output is correct |
| 46 |
Correct |
95 ms |
14240 KB |
Output is correct |
| 47 |
Correct |
72 ms |
14160 KB |
Output is correct |
| 48 |
Correct |
83 ms |
14164 KB |
Output is correct |
| 49 |
Correct |
71 ms |
14152 KB |
Output is correct |
| 50 |
Correct |
30 ms |
9948 KB |
Output is correct |
| 51 |
Correct |
25 ms |
9812 KB |
Output is correct |
| 52 |
Correct |
24 ms |
9920 KB |
Output is correct |
| 53 |
Correct |
48 ms |
14676 KB |
Output is correct |
| 54 |
Correct |
69 ms |
14672 KB |
Output is correct |
| 55 |
Correct |
51 ms |
14624 KB |
Output is correct |
| 56 |
Correct |
2 ms |
5208 KB |
Output is correct |
| 57 |
Correct |
8 ms |
7772 KB |
Output is correct |
| 58 |
Correct |
37 ms |
18052 KB |
Output is correct |
| 59 |
Correct |
89 ms |
23376 KB |
Output is correct |
| 60 |
Correct |
60 ms |
13772 KB |
Output is correct |
| 61 |
Correct |
75 ms |
13660 KB |
Output is correct |
