Submission #938905

#	Time	Username	Problem	Language	Result	Execution time	Memory
938905		vjudge1	Bosses (BOI16_bosses)	C++17	0 / 100	0 ms	348 KiB

bosses

#include<bits/stdc++.h>
using namespace std;

const int INF = 1e9;
const int MAXN = 5e3;

int N;
vector<int> children[MAXN + 5];
bool vis[MAXN + 5];

int dfs(int cur, int depth) {
  vis[cur] = true;
  int ans = depth;
  for (auto child: children[cur]) {
    if (vis[child]) continue;
    ans += dfs(child, depth + 1);
  }
  return ans;
}

int main() {
  ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
  cin >> N;
  for (int i = 0; i < N; i++) {
    int sz; cin >> sz;
    while (sz--) {
      int u; cin >> u; u--;
      children[i].push_back(u);
    }
  }
  int ans = INF;
  for (int i = 0; i < N; i++) {
    memset(vis, false, sizeof vis);
    ans = min(ans, dfs(i, 1));
  }
  cout << ans << endl;
  return 0;
}

• Subtask 1: 0 / 22
• Subtask 2: 0 / 45
• Subtask 3: 0 / 33