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Submission #924996

# Submission time Handle Problem Language Result Execution time Memory
924996 2024-02-10T10:42:00 Z NintsiChkhaidze Bosses (BOI16_bosses) C++17
67 / 100
 132 ms 604 KB 
#include <bits/stdc++.h>
#define ll long long
#define s second
#define f first
#define pb push_back
#define pii pair <int,int>
#define left (h<<1),l,(l + r)/2
#define right ((h<<1)|1),(l + r)/2 + 1,r
#define int ll
using namespace std;

const int N = 5000 + 3;

int vis[N],dep[N],cnt[N];
vector <int> v[N];

signed main(){
	ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);

	int n;
	cin>>n;

	for (int i = 1; i <= n; i++){
		int k;
		cin>>k;

		for (int j= 1; j <= k; j++){
			int x;
			cin>>x;
			v[x].pb(i);
		}
	}

	int ans = 1e18;
	for (int root = 1; root <= n; root++){
		for (int i = 1;i <= n; i++)
			dep[i] = 0,cnt[i] = 0;
		queue <int> q;
		q.push(root);
		dep[root] = 1;

		while(q.size()){
			int x = q.front(); q.pop();
			for (int to: v[x]){
				if (!dep[to]) {
					dep[to] = dep[x] + 1;
					q.push(to);
				}
			}
		}

		for(int i=1;i<=n;i++)
			cnt[dep[i]]++;

		int sum = n,cur = n;	
		for (int i = 1; i <= n; i++){
			cur -= cnt[i];
			sum += cur;
		}
		ans=min(ans,sum);
	}
	cout<<ans;
}

Subtask #1
22.0 / 22.0

# 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct

Subtask #2
45.0 / 45.0

# 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #3
0 / 33.0

# 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 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 3 ms 604 KB Output is correct
13 Correct 3 ms 604 KB Output is correct
14 Incorrect 132 ms 604 KB Output isn't correct
15 Halted 0 ms 0 KB -