oj.uz

답안 #45501

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
45501 2018-04-14T17:30:13 Z IvanC Norela (info1cup18_norela) C++17
100 / 100
 94 ms 564 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll menor,N,M,mascaras[30],alvo,menormask;
void brute(int atual,ll bitmask,int qtd,ll outramask){
	if(atual == M){
		if(bitmask != alvo) return;
		if(qtd < menor){
			menor = qtd;
			menormask = outramask;
		}
		else if(qtd == menor){
			for(ll i = 0;i<M;i++){
				if((outramask & (1LL << i)) && !(menormask & (1LL << i)) ){
					menormask = outramask;
					break;
				}
			}
		}
		return;
	}
	brute(atual+1, bitmask,qtd, outramask );
	brute(atual+1, bitmask ^ mascaras[atual], qtd+1, outramask | (1LL << atual) );
}
int main(){
	cin >> N >> M;
	menor = 2*M;
	alvo = (1LL << N) - 1;
	for(ll i = 0;i<M;i++){
		ll x;
		cin >> x;
		while(x--){
			ll y;
			cin >> y;
			y--;
			mascaras[i] |= (1LL << y);
		}
	}
	brute(0,0,0,0);
	cout << menor << endl;
	for(ll i = 0;i<M;i++){
		if(menormask & (1LL << i)){
			cout << i + 1 << " ";
		}
	}
	cout << endl;
	return 0;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 2 ms 544 KB Output is correct
4 Correct 3 ms 544 KB Output is correct
5 Correct 3 ms 544 KB Output is correct
6 Correct 3 ms 544 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 2 ms 544 KB Output is correct
4 Correct 3 ms 544 KB Output is correct
5 Correct 3 ms 544 KB Output is correct
6 Correct 3 ms 544 KB Output is correct
7 Correct 10 ms 544 KB Output is correct
8 Correct 13 ms 544 KB Output is correct
9 Correct 21 ms 544 KB Output is correct
10 Correct 19 ms 544 KB Output is correct
11 Correct 15 ms 544 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 2 ms 544 KB Output is correct
4 Correct 3 ms 544 KB Output is correct
5 Correct 3 ms 544 KB Output is correct
6 Correct 3 ms 544 KB Output is correct
7 Correct 10 ms 544 KB Output is correct
8 Correct 13 ms 544 KB Output is correct
9 Correct 21 ms 544 KB Output is correct
10 Correct 19 ms 544 KB Output is correct
11 Correct 15 ms 544 KB Output is correct
12 Correct 14 ms 544 KB Output is correct
13 Correct 22 ms 544 KB Output is correct
14 Correct 35 ms 544 KB Output is correct
15 Correct 24 ms 544 KB Output is correct
16 Correct 23 ms 544 KB Output is correct
17 Correct 22 ms 544 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 2 ms 544 KB Output is correct
4 Correct 3 ms 544 KB Output is correct
5 Correct 3 ms 544 KB Output is correct
6 Correct 3 ms 544 KB Output is correct
7 Correct 10 ms 544 KB Output is correct
8 Correct 13 ms 544 KB Output is correct
9 Correct 21 ms 544 KB Output is correct
10 Correct 19 ms 544 KB Output is correct
11 Correct 15 ms 544 KB Output is correct
12 Correct 14 ms 544 KB Output is correct
13 Correct 22 ms 544 KB Output is correct
14 Correct 35 ms 544 KB Output is correct
15 Correct 24 ms 544 KB Output is correct
16 Correct 23 ms 544 KB Output is correct
17 Correct 22 ms 544 KB Output is correct
18 Correct 44 ms 544 KB Output is correct
19 Correct 42 ms 544 KB Output is correct
20 Correct 83 ms 564 KB Output is correct
21 Correct 94 ms 564 KB Output is correct
22 Correct 81 ms 564 KB Output is correct
23 Correct 81 ms 564 KB Output is correct