#include <bits/stdc++.h>
using namespace std;
#define int long long
int N, A = 1e9, T;
bitset<5005> V;
vector<int> adj[5005], nadj[5005];
queue<int> Q;
int dfs(int n, int e) {
int d = 1;
for (auto u : nadj[n])
if (u ^ e) d += dfs(u, n);
T += d;
return d;
}
main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> N;
for (int i = 1, K, X; i <= N; i++) {
cin >> K;
while (K--) {
cin >> X;
adj[X].push_back(i);
}
}
for (int i = 1; i <= N; i++) {
V.reset();
T = 0;
for (int j = 1; j <= N; j++) nadj[j].clear();
Q.push(i);
V[i] = 1;
while (!Q.empty()) {
int a = Q.front();
Q.pop();
for (auto u : adj[a])
if (!V[u]) {
V[u] = 1;
nadj[a].push_back(u);
Q.push(u);
}
}
if ((int)V.count() ^ N) continue;
dfs(i, -1);
A = min(A, T);
}
cout << A << '\n';
}
Compilation message
bosses.cpp:18:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main() {
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
504 KB |
Output is correct |
2 |
Correct |
5 ms |
504 KB |
Output is correct |
3 |
Correct |
5 ms |
632 KB |
Output is correct |
4 |
Correct |
5 ms |
632 KB |
Output is correct |
5 |
Correct |
5 ms |
508 KB |
Output is correct |
6 |
Correct |
5 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
504 KB |
Output is correct |
2 |
Correct |
5 ms |
504 KB |
Output is correct |
3 |
Correct |
5 ms |
632 KB |
Output is correct |
4 |
Correct |
5 ms |
632 KB |
Output is correct |
5 |
Correct |
5 ms |
508 KB |
Output is correct |
6 |
Correct |
5 ms |
504 KB |
Output is correct |
7 |
Correct |
5 ms |
504 KB |
Output is correct |
8 |
Correct |
5 ms |
504 KB |
Output is correct |
9 |
Correct |
5 ms |
504 KB |
Output is correct |
10 |
Correct |
5 ms |
504 KB |
Output is correct |
11 |
Correct |
5 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
504 KB |
Output is correct |
2 |
Correct |
5 ms |
504 KB |
Output is correct |
3 |
Correct |
5 ms |
632 KB |
Output is correct |
4 |
Correct |
5 ms |
632 KB |
Output is correct |
5 |
Correct |
5 ms |
508 KB |
Output is correct |
6 |
Correct |
5 ms |
504 KB |
Output is correct |
7 |
Correct |
5 ms |
504 KB |
Output is correct |
8 |
Correct |
5 ms |
504 KB |
Output is correct |
9 |
Correct |
5 ms |
504 KB |
Output is correct |
10 |
Correct |
5 ms |
504 KB |
Output is correct |
11 |
Correct |
5 ms |
504 KB |
Output is correct |
12 |
Correct |
10 ms |
888 KB |
Output is correct |
13 |
Correct |
8 ms |
892 KB |
Output is correct |
14 |
Correct |
207 ms |
868 KB |
Output is correct |
15 |
Correct |
25 ms |
760 KB |
Output is correct |
16 |
Correct |
717 ms |
1120 KB |
Output is correct |
17 |
Correct |
1422 ms |
1016 KB |
Output is correct |
18 |
Correct |
1411 ms |
1020 KB |
Output is correct |