#include <iostream>
#include <vector>
#include <queue>
using namespace std;
using pii = pair<int, int>;
const int MAXN = 1e5 + 5, MAXL = 2000;
pii ans = {-1, MAXN};
vector<int> g[MAXN], a[MAXN], se[MAXN];
int n, k, tot, dfn[MAXN], b[MAXN], co[MAXN], dep[MAXN], cnt[MAXN];
void init(int u) {
b[u] = dfn[u] = ++tot;
for (auto v : g[u]) {
dep[v] = dep[u] + 1;
init(v), b[u] = b[v];
}
}
void Max(int c, int k) {
if (ans.first < c || (c == ans.first && ans.second > k)) {
ans = {c, k};
}
}
void dfs(int u) {
for (auto v : g[u]) {
dfs(v);
if (a[u].size() < a[v].size()) {
swap(a[u], a[v]);
}
for (int i = 0; i < a[v].size(); i++) {
a[u][i] += a[v][i];
}
}
a[u].push_back(1);
if (se[co[u]].size() <= MAXL) {
int c = 0, k = 0;
for (auto v : se[co[u]]) {
//cout << v << ' ';
int d = a[u].size() - 1 - (dep[v] - dep[u]);
k += (dfn[v] >= dfn[u] && dfn[v] <= b[u]);
if (d >= 0 && d < a[u].size() && cnt[d] < a[u][d]) {
cnt[d]++, c++;
}
}
Max(c, c - k);
for (auto v : se[co[u]]) {
cnt[a[u].size() - 1 - (dep[v] - dep[u])] = 0;
}
//cout << u << ' ' << c << ' ' << k << '\n';
}
}
void Dfs(int u, int co) {
}
int main() {
ios::sync_with_stdio(0), cin.tie(0);
cin >> n >> k;
for (int i = 0; i < n; i++) {
cin >> co[i], se[co[i]].push_back(i);
}
for (int i = 1, fa; i < n; i++) {
cin >> fa, g[fa].push_back(i);
}
init(0), dfs(0);
for (int i = 1; i <= k; i++) {
if (se[i].size() > MAXL) {
}
}
cout << ans.first << ' ' << ans.second;
return 0;
}
Compilation message
Main.cpp: In function 'void dfs(int)':
Main.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
34 | for (int i = 0; i < a[v].size(); i++) {
| ~~^~~~~~~~~~~~~
Main.cpp:45:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
45 | if (d >= 0 && d < a[u].size() && cnt[d] < a[u][d]) {
| ~~^~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
7516 KB |
Output is correct |
2 |
Correct |
3 ms |
7516 KB |
Output is correct |
3 |
Correct |
3 ms |
7516 KB |
Output is correct |
4 |
Correct |
4 ms |
7512 KB |
Output is correct |
5 |
Correct |
4 ms |
7516 KB |
Output is correct |
6 |
Correct |
3 ms |
7516 KB |
Output is correct |
7 |
Correct |
3 ms |
7516 KB |
Output is correct |
8 |
Correct |
3 ms |
7772 KB |
Output is correct |
9 |
Correct |
34 ms |
25576 KB |
Output is correct |
10 |
Correct |
3 ms |
7516 KB |
Output is correct |
11 |
Correct |
8 ms |
7772 KB |
Output is correct |
12 |
Incorrect |
26 ms |
24908 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
7512 KB |
Output is correct |
2 |
Correct |
3 ms |
7516 KB |
Output is correct |
3 |
Correct |
3 ms |
7376 KB |
Output is correct |
4 |
Correct |
7 ms |
7676 KB |
Output is correct |
5 |
Incorrect |
26 ms |
24976 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
7516 KB |
Output is correct |
2 |
Correct |
3 ms |
7512 KB |
Output is correct |
3 |
Correct |
3 ms |
7512 KB |
Output is correct |
4 |
Correct |
3 ms |
7516 KB |
Output is correct |
5 |
Correct |
3 ms |
7516 KB |
Output is correct |
6 |
Correct |
3 ms |
7516 KB |
Output is correct |
7 |
Correct |
3 ms |
7516 KB |
Output is correct |
8 |
Correct |
34 ms |
25572 KB |
Output is correct |
9 |
Correct |
3 ms |
7536 KB |
Output is correct |
10 |
Correct |
3 ms |
7772 KB |
Output is correct |
11 |
Correct |
37 ms |
26040 KB |
Output is correct |
12 |
Incorrect |
3 ms |
7512 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
7512 KB |
Output is correct |
2 |
Correct |
3 ms |
7516 KB |
Output is correct |
3 |
Correct |
3 ms |
7516 KB |
Output is correct |
4 |
Correct |
3 ms |
7272 KB |
Output is correct |
5 |
Correct |
2 ms |
7528 KB |
Output is correct |
6 |
Correct |
3 ms |
7516 KB |
Output is correct |
7 |
Correct |
3 ms |
7516 KB |
Output is correct |
8 |
Correct |
3 ms |
7772 KB |
Output is correct |
9 |
Correct |
3 ms |
7516 KB |
Output is correct |
10 |
Correct |
7 ms |
7772 KB |
Output is correct |
11 |
Correct |
3 ms |
7516 KB |
Output is correct |
12 |
Correct |
3 ms |
7772 KB |
Output is correct |
13 |
Correct |
3 ms |
7516 KB |
Output is correct |
14 |
Correct |
13 ms |
7516 KB |
Output is correct |
15 |
Runtime error |
7 ms |
14772 KB |
Execution killed with signal 6 |
16 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
7516 KB |
Output is correct |
2 |
Correct |
3 ms |
7516 KB |
Output is correct |
3 |
Correct |
3 ms |
7516 KB |
Output is correct |
4 |
Correct |
4 ms |
7512 KB |
Output is correct |
5 |
Correct |
4 ms |
7516 KB |
Output is correct |
6 |
Correct |
3 ms |
7516 KB |
Output is correct |
7 |
Correct |
3 ms |
7516 KB |
Output is correct |
8 |
Correct |
3 ms |
7772 KB |
Output is correct |
9 |
Correct |
34 ms |
25576 KB |
Output is correct |
10 |
Correct |
3 ms |
7516 KB |
Output is correct |
11 |
Correct |
8 ms |
7772 KB |
Output is correct |
12 |
Incorrect |
26 ms |
24908 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |