Submission #811032

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
811032	2023-08-06T21:14:41 Z	tch1cherin	Political Development (BOI17_politicaldevelopment)	C++17	77 / 100	3000 ms	26404 KB

politicaldevelopment

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

int main() {
	cin.tie(nullptr)->sync_with_stdio(false);
	int N, K;
	cin >> N >> K;
	vector<set<int>> graph(N);
	set<pair<int, int>> nodes;
	for (int node = 0; node < N; node++) {
		int degree;
		cin >> degree;
		nodes.emplace(degree, node);
		for (int j = 0; j < degree; j++) {
			int neighbour;
			cin >> neighbour;
			graph[node].insert(neighbour);
		}
	}
	vector<int> to(N, -1);
	int answer = 0;
	while (!nodes.empty()) {
		auto [degree, node] = *nodes.begin();
		nodes.erase({degree, node});
		vector<int> neighbours;
		to[node] = 0;
		for (int i = 0; i < degree; i++) {
			int neighbour = *graph[node].begin();
			nodes.erase({(int)graph[neighbour].size(), neighbour});
			graph[node].erase(neighbour);
			graph[neighbour].erase(node);
			nodes.emplace((int)graph[neighbour].size(), neighbour);
			to[neighbour] = 1 + i;
			neighbours.push_back(neighbour);
		}
		vector<int16_t> small_graph(degree + 1);
		small_graph[to[node]] = (1 << (degree + 1)) - 1;
		for (int x : neighbours) {
			small_graph[to[x]] |= 1 << to[x];
			small_graph[to[x]] |= 1 << to[node];
			for (int y : graph[x]) {
				if (to[y] != -1) {
					small_graph[to[x]] |= 1 << to[y];
				}
			}
		}
		for (int clique = 0; clique < (1 << degree); clique++) {
			int16_t intersection = small_graph[to[node]];
			for (int vertex = 1; vertex < degree + 1; vertex++) {
				if ((clique >> (vertex - 1)) & 1) {
					intersection &= small_graph[vertex];
				}
			}
			if (((clique << 1) | 1) == intersection) {
				answer = max(answer, __builtin_popcount(intersection));
			}
		
		}
		to[node] = -1;
		for (int neighbour : neighbours) {
			to[neighbour] = -1;
		}
	}
	cout << answer << "\n";
}

Subtask #1
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	6 ms	1236 KB	Output is correct
4	Correct	87 ms	1236 KB	Output is correct
5	Correct	88 ms	1236 KB	Output is correct
6	Correct	5 ms	1236 KB	Output is correct
7	Correct	5 ms	1236 KB	Output is correct
8	Correct	1 ms	724 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	724 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	6 ms	1236 KB	Output is correct
4	Correct	87 ms	1236 KB	Output is correct
5	Correct	88 ms	1236 KB	Output is correct
6	Correct	5 ms	1236 KB	Output is correct
7	Correct	5 ms	1236 KB	Output is correct
8	Correct	1 ms	724 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	724 KB	Output is correct
11	Correct	89 ms	1236 KB	Output is correct
12	Correct	85 ms	1236 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	87 ms	1236 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	5 ms	1236 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	5 ms	1236 KB	Output is correct
19	Correct	1 ms	724 KB	Output is correct
20	Correct	3 ms	980 KB	Output is correct
21	Correct	2 ms	980 KB	Output is correct
22	Correct	1 ms	724 KB	Output is correct
23	Correct	5 ms	1364 KB	Output is correct
24	Correct	1 ms	724 KB	Output is correct
25	Correct	5 ms	1364 KB	Output is correct
26	Correct	5 ms	1236 KB	Output is correct
27	Correct	4 ms	1236 KB	Output is correct
28	Correct	6 ms	1236 KB	Output is correct
29	Correct	5 ms	1236 KB	Output is correct
30	Correct	22 ms	1364 KB	Output is correct
31	Correct	5 ms	1364 KB	Output is correct
32	Correct	21 ms	1364 KB	Output is correct
33	Correct	5 ms	1364 KB	Output is correct
34	Correct	5 ms	1364 KB	Output is correct
35	Correct	3 ms	876 KB	Output is correct
36	Correct	3 ms	872 KB	Output is correct
37	Correct	3 ms	852 KB	Output is correct
38	Correct	2 ms	596 KB	Output is correct
39	Correct	2 ms	596 KB	Output is correct
40	Correct	8 ms	1748 KB	Output is correct
41	Correct	2 ms	596 KB	Output is correct
42	Correct	8 ms	1748 KB	Output is correct
43	Correct	8 ms	1748 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	724 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	317 ms	26404 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	313 ms	26252 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	313 ms	26276 KB	Output is correct
16	Correct	303 ms	26336 KB	Output is correct
17	Correct	303 ms	26312 KB	Output is correct
18	Correct	309 ms	26212 KB	Output is correct

Subtask #4
38.0 / 38.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	6 ms	1236 KB	Output is correct
4	Correct	87 ms	1236 KB	Output is correct
5	Correct	88 ms	1236 KB	Output is correct
6	Correct	5 ms	1236 KB	Output is correct
7	Correct	5 ms	1236 KB	Output is correct
8	Correct	1 ms	724 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	724 KB	Output is correct
11	Correct	89 ms	1236 KB	Output is correct
12	Correct	85 ms	1236 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	87 ms	1236 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	5 ms	1236 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	5 ms	1236 KB	Output is correct
19	Correct	1 ms	724 KB	Output is correct
20	Correct	3 ms	980 KB	Output is correct
21	Correct	2 ms	980 KB	Output is correct
22	Correct	1 ms	724 KB	Output is correct
23	Correct	5 ms	1364 KB	Output is correct
24	Correct	1 ms	724 KB	Output is correct
25	Correct	5 ms	1364 KB	Output is correct
26	Correct	5 ms	1236 KB	Output is correct
27	Correct	4 ms	1236 KB	Output is correct
28	Correct	6 ms	1236 KB	Output is correct
29	Correct	5 ms	1236 KB	Output is correct
30	Correct	22 ms	1364 KB	Output is correct
31	Correct	5 ms	1364 KB	Output is correct
32	Correct	21 ms	1364 KB	Output is correct
33	Correct	5 ms	1364 KB	Output is correct
34	Correct	5 ms	1364 KB	Output is correct
35	Correct	3 ms	876 KB	Output is correct
36	Correct	3 ms	872 KB	Output is correct
37	Correct	3 ms	852 KB	Output is correct
38	Correct	2 ms	596 KB	Output is correct
39	Correct	2 ms	596 KB	Output is correct
40	Correct	8 ms	1748 KB	Output is correct
41	Correct	2 ms	596 KB	Output is correct
42	Correct	8 ms	1748 KB	Output is correct
43	Correct	8 ms	1748 KB	Output is correct
44	Correct	15 ms	2644 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	8 ms	1748 KB	Output is correct
47	Correct	17 ms	2772 KB	Output is correct
48	Correct	8 ms	1748 KB	Output is correct
49	Correct	17 ms	2892 KB	Output is correct
50	Correct	17 ms	2772 KB	Output is correct
51	Correct	54 ms	4948 KB	Output is correct
52	Correct	86 ms	1228 KB	Output is correct
53	Correct	1322 ms	5356 KB	Output is correct
54	Correct	79 ms	5460 KB	Output is correct
55	Correct	5 ms	1228 KB	Output is correct
56	Correct	89 ms	1236 KB	Output is correct
57	Correct	1 ms	724 KB	Output is correct
58	Correct	1347 ms	5432 KB	Output is correct
59	Correct	6 ms	1748 KB	Output is correct
60	Correct	5 ms	1240 KB	Output is correct
61	Correct	6 ms	1740 KB	Output is correct
62	Correct	6 ms	1772 KB	Output is correct
63	Correct	15 ms	2892 KB	Output is correct
64	Correct	13 ms	2516 KB	Output is correct
65	Correct	7 ms	1612 KB	Output is correct
66	Correct	6 ms	1748 KB	Output is correct
67	Correct	22 ms	3284 KB	Output is correct
68	Correct	12 ms	2516 KB	Output is correct
69	Correct	7 ms	1620 KB	Output is correct
70	Correct	15 ms	2644 KB	Output is correct
71	Correct	21 ms	3280 KB	Output is correct
72	Correct	20 ms	3192 KB	Output is correct
73	Correct	4 ms	1236 KB	Output is correct
74	Correct	15 ms	2644 KB	Output is correct
75	Correct	21 ms	3156 KB	Output is correct
76	Correct	27 ms	2132 KB	Output is correct
77	Correct	29 ms	3796 KB	Output is correct
78	Correct	4 ms	1236 KB	Output is correct
79	Correct	14 ms	2048 KB	Output is correct
80	Correct	27 ms	2120 KB	Output is correct
81	Correct	33 ms	3704 KB	Output is correct
82	Correct	2 ms	588 KB	Output is correct
83	Correct	15 ms	2048 KB	Output is correct
84	Correct	19 ms	3156 KB	Output is correct
85	Correct	3 ms	596 KB	Output is correct
86	Correct	19 ms	3068 KB	Output is correct

Subtask #5
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	6 ms	1236 KB	Output is correct
4	Correct	87 ms	1236 KB	Output is correct
5	Correct	88 ms	1236 KB	Output is correct
6	Correct	5 ms	1236 KB	Output is correct
7	Correct	5 ms	1236 KB	Output is correct
8	Correct	1 ms	724 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	724 KB	Output is correct
11	Correct	89 ms	1236 KB	Output is correct
12	Correct	85 ms	1236 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	87 ms	1236 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	5 ms	1236 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	5 ms	1236 KB	Output is correct
19	Correct	1 ms	724 KB	Output is correct
20	Correct	3 ms	980 KB	Output is correct
21	Correct	2 ms	980 KB	Output is correct
22	Correct	1 ms	724 KB	Output is correct
23	Correct	5 ms	1364 KB	Output is correct
24	Correct	1 ms	724 KB	Output is correct
25	Correct	5 ms	1364 KB	Output is correct
26	Correct	5 ms	1236 KB	Output is correct
27	Correct	4 ms	1236 KB	Output is correct
28	Correct	6 ms	1236 KB	Output is correct
29	Correct	5 ms	1236 KB	Output is correct
30	Correct	22 ms	1364 KB	Output is correct
31	Correct	5 ms	1364 KB	Output is correct
32	Correct	21 ms	1364 KB	Output is correct
33	Correct	5 ms	1364 KB	Output is correct
34	Correct	5 ms	1364 KB	Output is correct
35	Correct	3 ms	876 KB	Output is correct
36	Correct	3 ms	872 KB	Output is correct
37	Correct	3 ms	852 KB	Output is correct
38	Correct	2 ms	596 KB	Output is correct
39	Correct	2 ms	596 KB	Output is correct
40	Correct	8 ms	1748 KB	Output is correct
41	Correct	2 ms	596 KB	Output is correct
42	Correct	8 ms	1748 KB	Output is correct
43	Correct	8 ms	1748 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	179 ms	19288 KB	Output is correct
46	Execution timed out	3063 ms	13140 KB	Time limit exceeded
47	Halted	0 ms	0 KB	-

Submission #811032

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 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
0 / 23.0