Submission #865939

# Submission time Handle Problem Language Result Execution time Memory
865939 2023-10-25T04:56:31 Z maks007 Bosses (BOI16_bosses) C++14
100 / 100
1202 ms 1664 KB
#include "bits/stdc++.h"

using namespace std;

#define int long long

signed main () {
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, ans = LLONG_MAX;
	cin >> n;
	vector <int> g[n], g2[n];
	for(int i = 0; i < n; i ++) {
		int sz;
		cin >> sz;
		while(sz --) {
			int v;
			cin >> v;
			g[v-1].push_back(i);
		}
	}
	queue <int> q;
	for(int i = 0; i < n; i ++) {
		vector <int> dist(n, LLONG_MAX);
		dist[i] = 0;
		q.push(i);
		vector <pair <int,int>> temp;
		while(!q.empty()) {
			int v = q.front();
			q.pop();
			for(auto u : g[v]) {
				if(dist[u] == LLONG_MAX) {
					temp.push_back({v, u});
					dist[u] = dist[v] + 1;
					q.push(u);
				}
			}
		}
		if(count(dist.begin(), dist.end(), LLONG_MAX)) continue;
		vector <int> dp(n, 1);
		function <void(int,int)> dfs=[&](int v, int p) {
			for(auto u : g2[v]) {
				if(p == u) continue;
				dfs(u, v);
				dp[v] += dp[u];
			}
		};
		for(auto j : temp) g2[j.first].push_back(j.second);
		dfs(i,-1);
		ans = min(ans, accumulate(dp.begin(), dp.end(), 0LL));
		for(auto &j : g2) j.clear();
	}
	cout << ans;
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 4 ms 600 KB Output is correct
13 Correct 3 ms 604 KB Output is correct
14 Correct 137 ms 1212 KB Output is correct
15 Correct 26 ms 1032 KB Output is correct
16 Correct 600 ms 1180 KB Output is correct
17 Correct 1194 ms 1664 KB Output is correct
18 Correct 1202 ms 1352 KB Output is correct