답안 #260448

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
260448	2020-08-10T09:24:48 Z	dolphingarlic	Political Development (BOI17_politicaldevelopment)	C++14	100 / 100	1864 ms	24568 KB

politicaldevelopment

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

set<int> graph[50000];
bool tried[50000];

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n, k;
	cin >> n >> k;
	queue<int> q;
	for (int i = 0; i < n; i++) {
		int s;
		cin >> s;
		if (s < k) {
			tried[i] = true;
			q.push(i);
		}
		while (s--) {
			int b;
			cin >> b;
			graph[i].insert(b);
		}
	}

	int ans = 0;
	while (q.size()) {
		int curr = q.front();
		q.pop();

		for (int i = 0; i < (1 << graph[curr].size()); i++) {
			if (__builtin_popcount(i) <= ans) continue;
			vector<int> adj;
			int tmp = i;
			for (int j : graph[curr]) {
				if (tmp & 1) adj.push_back(j);
				tmp >>= 1;
			}
			bool good = true;
			for (int j = 0; j < adj.size(); j++) {
				for (int l = j + 1; l < adj.size(); l++) {
					good &= graph[adj[j]].find(adj[l]) != graph[adj[j]].end();
				}
			}
			if (good) ans = __builtin_popcount(i);
		}

		for (int i : graph[curr]) {
			graph[i].erase(curr);
			if (!tried[i] && graph[i].size() < k) {
				tried[i] = true;
				q.push(i);
			}
		}
		graph[curr].clear();
	}

	cout << ans + 1;
	return 0;
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int j = 0; j < adj.size(); j++) {
                    ~~^~~~~~~~~~~~
politicaldevelopment.cpp:43:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int l = j + 1; l < adj.size(); l++) {
                         ~~^~~~~~~~~~~~
politicaldevelopment.cpp:52:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if (!tried[i] && graph[i].size() < k) {
                     ~~~~~~~~~~~~~~~~^~~

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2688 KB	Output is correct
2	Correct	2 ms	2688 KB	Output is correct
3	Correct	5 ms	3328 KB	Output is correct
4	Correct	5 ms	3200 KB	Output is correct
5	Correct	5 ms	3200 KB	Output is correct
6	Correct	5 ms	3200 KB	Output is correct
7	Correct	6 ms	3200 KB	Output is correct
8	Correct	3 ms	2688 KB	Output is correct
9	Correct	2 ms	2688 KB	Output is correct
10	Correct	2 ms	2688 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2688 KB	Output is correct
2	Correct	2 ms	2688 KB	Output is correct
3	Correct	5 ms	3328 KB	Output is correct
4	Correct	5 ms	3200 KB	Output is correct
5	Correct	5 ms	3200 KB	Output is correct
6	Correct	5 ms	3200 KB	Output is correct
7	Correct	6 ms	3200 KB	Output is correct
8	Correct	3 ms	2688 KB	Output is correct
9	Correct	2 ms	2688 KB	Output is correct
10	Correct	2 ms	2688 KB	Output is correct
11	Correct	5 ms	3264 KB	Output is correct
12	Correct	5 ms	3200 KB	Output is correct
13	Correct	2 ms	2688 KB	Output is correct
14	Correct	6 ms	3200 KB	Output is correct
15	Correct	2 ms	2688 KB	Output is correct
16	Correct	5 ms	3200 KB	Output is correct
17	Correct	2 ms	2688 KB	Output is correct
18	Correct	5 ms	3200 KB	Output is correct
19	Correct	2 ms	2688 KB	Output is correct
20	Correct	4 ms	2944 KB	Output is correct
21	Correct	3 ms	2944 KB	Output is correct
22	Correct	2 ms	2688 KB	Output is correct
23	Correct	6 ms	3328 KB	Output is correct
24	Correct	3 ms	2688 KB	Output is correct
25	Correct	7 ms	3328 KB	Output is correct
26	Correct	6 ms	3328 KB	Output is correct
27	Correct	5 ms	3200 KB	Output is correct
28	Correct	6 ms	3328 KB	Output is correct
29	Correct	5 ms	3200 KB	Output is correct
30	Correct	8 ms	3456 KB	Output is correct
31	Correct	8 ms	3328 KB	Output is correct
32	Correct	6 ms	3456 KB	Output is correct
33	Correct	8 ms	3328 KB	Output is correct
34	Correct	6 ms	3328 KB	Output is correct
35	Correct	4 ms	3072 KB	Output is correct
36	Correct	4 ms	3072 KB	Output is correct
37	Correct	4 ms	3072 KB	Output is correct
38	Correct	4 ms	2944 KB	Output is correct
39	Correct	4 ms	2880 KB	Output is correct
40	Correct	8 ms	3712 KB	Output is correct
41	Correct	5 ms	2880 KB	Output is correct
42	Correct	8 ms	3712 KB	Output is correct
43	Correct	8 ms	3712 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	2688 KB	Output is correct
2	Correct	2 ms	2688 KB	Output is correct
3	Correct	2 ms	2688 KB	Output is correct
4	Correct	2 ms	2688 KB	Output is correct
5	Correct	2 ms	2688 KB	Output is correct
6	Correct	2 ms	2816 KB	Output is correct
7	Correct	2 ms	2688 KB	Output is correct
8	Correct	2 ms	2688 KB	Output is correct
9	Correct	2 ms	2688 KB	Output is correct
10	Correct	2 ms	2688 KB	Output is correct
11	Correct	1842 ms	24440 KB	Output is correct
12	Correct	2 ms	2688 KB	Output is correct
13	Correct	405 ms	24312 KB	Output is correct
14	Correct	2 ms	2688 KB	Output is correct
15	Correct	1864 ms	24380 KB	Output is correct
16	Correct	448 ms	24440 KB	Output is correct
17	Correct	1111 ms	24568 KB	Output is correct
18	Correct	1358 ms	24440 KB	Output is correct

Subtask #4
38.0 / 38.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2688 KB	Output is correct
2	Correct	2 ms	2688 KB	Output is correct
3	Correct	5 ms	3328 KB	Output is correct
4	Correct	5 ms	3200 KB	Output is correct
5	Correct	5 ms	3200 KB	Output is correct
6	Correct	5 ms	3200 KB	Output is correct
7	Correct	6 ms	3200 KB	Output is correct
8	Correct	3 ms	2688 KB	Output is correct
9	Correct	2 ms	2688 KB	Output is correct
10	Correct	2 ms	2688 KB	Output is correct
11	Correct	5 ms	3264 KB	Output is correct
12	Correct	5 ms	3200 KB	Output is correct
13	Correct	2 ms	2688 KB	Output is correct
14	Correct	6 ms	3200 KB	Output is correct
15	Correct	2 ms	2688 KB	Output is correct
16	Correct	5 ms	3200 KB	Output is correct
17	Correct	2 ms	2688 KB	Output is correct
18	Correct	5 ms	3200 KB	Output is correct
19	Correct	2 ms	2688 KB	Output is correct
20	Correct	4 ms	2944 KB	Output is correct
21	Correct	3 ms	2944 KB	Output is correct
22	Correct	2 ms	2688 KB	Output is correct
23	Correct	6 ms	3328 KB	Output is correct
24	Correct	3 ms	2688 KB	Output is correct
25	Correct	7 ms	3328 KB	Output is correct
26	Correct	6 ms	3328 KB	Output is correct
27	Correct	5 ms	3200 KB	Output is correct
28	Correct	6 ms	3328 KB	Output is correct
29	Correct	5 ms	3200 KB	Output is correct
30	Correct	8 ms	3456 KB	Output is correct
31	Correct	8 ms	3328 KB	Output is correct
32	Correct	6 ms	3456 KB	Output is correct
33	Correct	8 ms	3328 KB	Output is correct
34	Correct	6 ms	3328 KB	Output is correct
35	Correct	4 ms	3072 KB	Output is correct
36	Correct	4 ms	3072 KB	Output is correct
37	Correct	4 ms	3072 KB	Output is correct
38	Correct	4 ms	2944 KB	Output is correct
39	Correct	4 ms	2880 KB	Output is correct
40	Correct	8 ms	3712 KB	Output is correct
41	Correct	5 ms	2880 KB	Output is correct
42	Correct	8 ms	3712 KB	Output is correct
43	Correct	8 ms	3712 KB	Output is correct
44	Correct	15 ms	4736 KB	Output is correct
45	Correct	2 ms	2688 KB	Output is correct
46	Correct	8 ms	3712 KB	Output is correct
47	Correct	26 ms	4824 KB	Output is correct
48	Correct	8 ms	3712 KB	Output is correct
49	Correct	27 ms	4736 KB	Output is correct
50	Correct	44 ms	4736 KB	Output is correct
51	Correct	507 ms	6756 KB	Output is correct
52	Correct	5 ms	3200 KB	Output is correct
53	Correct	1437 ms	7240 KB	Output is correct
54	Correct	1100 ms	7220 KB	Output is correct
55	Correct	5 ms	3200 KB	Output is correct
56	Correct	5 ms	3200 KB	Output is correct
57	Correct	2 ms	2688 KB	Output is correct
58	Correct	1280 ms	7288 KB	Output is correct
59	Correct	7 ms	3712 KB	Output is correct
60	Correct	5 ms	3200 KB	Output is correct
61	Correct	7 ms	3712 KB	Output is correct
62	Correct	8 ms	3712 KB	Output is correct
63	Correct	14 ms	4736 KB	Output is correct
64	Correct	13 ms	4608 KB	Output is correct
65	Correct	7 ms	3584 KB	Output is correct
66	Correct	7 ms	3712 KB	Output is correct
67	Correct	32 ms	5248 KB	Output is correct
68	Correct	12 ms	4480 KB	Output is correct
69	Correct	7 ms	3584 KB	Output is correct
70	Correct	15 ms	4608 KB	Output is correct
71	Correct	23 ms	5120 KB	Output is correct
72	Correct	20 ms	5120 KB	Output is correct
73	Correct	5 ms	3200 KB	Output is correct
74	Correct	16 ms	4608 KB	Output is correct
75	Correct	19 ms	5120 KB	Output is correct
76	Correct	19 ms	4096 KB	Output is correct
77	Correct	306 ms	5632 KB	Output is correct
78	Correct	5 ms	3200 KB	Output is correct
79	Correct	158 ms	4224 KB	Output is correct
80	Correct	19 ms	4096 KB	Output is correct
81	Correct	311 ms	5632 KB	Output is correct
82	Correct	3 ms	2944 KB	Output is correct
83	Correct	161 ms	4344 KB	Output is correct
84	Correct	157 ms	4992 KB	Output is correct
85	Correct	4 ms	2944 KB	Output is correct
86	Correct	38 ms	4992 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2688 KB	Output is correct
2	Correct	2 ms	2688 KB	Output is correct
3	Correct	5 ms	3328 KB	Output is correct
4	Correct	5 ms	3200 KB	Output is correct
5	Correct	5 ms	3200 KB	Output is correct
6	Correct	5 ms	3200 KB	Output is correct
7	Correct	6 ms	3200 KB	Output is correct
8	Correct	3 ms	2688 KB	Output is correct
9	Correct	2 ms	2688 KB	Output is correct
10	Correct	2 ms	2688 KB	Output is correct
11	Correct	5 ms	3264 KB	Output is correct
12	Correct	5 ms	3200 KB	Output is correct
13	Correct	2 ms	2688 KB	Output is correct
14	Correct	6 ms	3200 KB	Output is correct
15	Correct	2 ms	2688 KB	Output is correct
16	Correct	5 ms	3200 KB	Output is correct
17	Correct	2 ms	2688 KB	Output is correct
18	Correct	5 ms	3200 KB	Output is correct
19	Correct	2 ms	2688 KB	Output is correct
20	Correct	4 ms	2944 KB	Output is correct
21	Correct	3 ms	2944 KB	Output is correct
22	Correct	2 ms	2688 KB	Output is correct
23	Correct	6 ms	3328 KB	Output is correct
24	Correct	3 ms	2688 KB	Output is correct
25	Correct	7 ms	3328 KB	Output is correct
26	Correct	6 ms	3328 KB	Output is correct
27	Correct	5 ms	3200 KB	Output is correct
28	Correct	6 ms	3328 KB	Output is correct
29	Correct	5 ms	3200 KB	Output is correct
30	Correct	8 ms	3456 KB	Output is correct
31	Correct	8 ms	3328 KB	Output is correct
32	Correct	6 ms	3456 KB	Output is correct
33	Correct	8 ms	3328 KB	Output is correct
34	Correct	6 ms	3328 KB	Output is correct
35	Correct	4 ms	3072 KB	Output is correct
36	Correct	4 ms	3072 KB	Output is correct
37	Correct	4 ms	3072 KB	Output is correct
38	Correct	4 ms	2944 KB	Output is correct
39	Correct	4 ms	2880 KB	Output is correct
40	Correct	8 ms	3712 KB	Output is correct
41	Correct	5 ms	2880 KB	Output is correct
42	Correct	8 ms	3712 KB	Output is correct
43	Correct	8 ms	3712 KB	Output is correct
44	Correct	2 ms	2688 KB	Output is correct
45	Correct	165 ms	17144 KB	Output is correct
46	Correct	66 ms	10232 KB	Output is correct
47	Correct	157 ms	17144 KB	Output is correct
48	Correct	161 ms	17144 KB	Output is correct
49	Correct	44 ms	7928 KB	Output is correct
50	Correct	292 ms	21912 KB	Output is correct
51	Correct	160 ms	17144 KB	Output is correct
52	Correct	40 ms	7928 KB	Output is correct
53	Correct	41 ms	7840 KB	Output is correct
54	Correct	6 ms	3072 KB	Output is correct
55	Correct	293 ms	22136 KB	Output is correct
56	Correct	25 ms	5496 KB	Output is correct
57	Correct	38 ms	7928 KB	Output is correct
58	Correct	58 ms	10360 KB	Output is correct
59	Correct	19 ms	5664 KB	Output is correct
60	Correct	24 ms	5504 KB	Output is correct
61	Correct	60 ms	10232 KB	Output is correct
62	Correct	37 ms	7928 KB	Output is correct
63	Correct	82 ms	11384 KB	Output is correct
64	Correct	19 ms	5504 KB	Output is correct
65	Correct	126 ms	13740 KB	Output is correct
66	Correct	37 ms	7928 KB	Output is correct
67	Correct	69 ms	11376 KB	Output is correct
68	Correct	93 ms	13048 KB	Output is correct
69	Correct	110 ms	13688 KB	Output is correct
70	Correct	37 ms	7892 KB	Output is correct
71	Correct	101 ms	13048 KB	Output is correct
72	Correct	74 ms	11044 KB	Output is correct
73	Correct	172 ms	15096 KB	Output is correct
74	Correct	38 ms	7928 KB	Output is correct
75	Correct	48 ms	7552 KB	Output is correct
76	Correct	72 ms	11000 KB	Output is correct
77	Correct	173 ms	15360 KB	Output is correct
78	Correct	78 ms	9088 KB	Output is correct
79	Correct	45 ms	7552 KB	Output is correct
80	Correct	19 ms	5248 KB	Output is correct
81	Correct	77 ms	9088 KB	Output is correct
82	Correct	88 ms	12668 KB	Output is correct
83	Correct	19 ms	5248 KB	Output is correct
84	Correct	89 ms	12536 KB	Output is correct

답안 #260448

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 12.0 / 12.0

Subtask #3 23.0 / 23.0

Subtask #4 38.0 / 38.0

Subtask #5 23.0 / 23.0

Subtask #1
4.0 / 4.0

Subtask #2
12.0 / 12.0

Subtask #3
23.0 / 23.0

Subtask #4
38.0 / 38.0

Subtask #5
23.0 / 23.0