oj.uz

답안 #693821

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
693821 2023-02-03T09:01:29 Z amirhoseinfar1385 Bosses (BOI16_bosses) C++17
100 / 100
 737 ms 700 KB 
#include<bits/stdc++.h>
using namespace std;
int n;
const int maxn=5000+5;
vector<int>adj[maxn];
vector<int>dis;

bool caldij(int u){
	vector<int>vis(n+1);
	vector<int>bf;
	bf.push_back(u);
	int len=0;
	while((int)bf.size()>0){
		for(auto x:bf){
			vis[x]=1;
		//	cout<<u<<" "<<x<<" "<<len<<endl;
			dis[x]=len;
		}
		vector<int>fake;
		for(auto x:bf){
			for(auto y:adj[x]){
				if(vis[y]==0){
					vis[y]=1;
					fake.push_back(y);
		//			cout<<u<<" "<<y<<endl;
				}
			}
		}
		bf.swap(fake);
		len++;
	}
	for(int i=1;i<=n;i++){
		if(vis[i]==0){
			return 0;
		}
	}
	return 1;
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	for(int i=1;i<=n;i++){
		int k;
		cin>>k;
		for(int j=0;j<k;j++){
			int d;
			cin>>d;
			adj[d].push_back(i);
		}
	}	
	long long mainres=1e16;
	for(int i=1;i<=n;i++){
		dis.clear();
		dis.resize(n+1);
		if(caldij(i)==0){
			continue;
		}
		long long fake=0;
		for(int j=1;j<=n;j++){
			fake+=dis[j];
		}
		//cout<<i<<" "<<fake<<"\n";
		mainres=min(mainres,fake);
	}
	mainres+=n;
	cout<<mainres<<"\n";
}

Subtask #1
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 440 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 340 KB Output is correct

Subtask #2
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 440 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 440 KB Output is correct
11 Correct 1 ms 468 KB Output is correct

Subtask #3
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 440 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 440 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 4 ms 476 KB Output is correct
13 Correct 3 ms 468 KB Output is correct
14 Correct 283 ms 576 KB Output is correct
15 Correct 7 ms 596 KB Output is correct
16 Correct 551 ms 692 KB Output is correct
17 Correct 737 ms 700 KB Output is correct
18 Correct 725 ms 692 KB Output is correct