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Submission #812321

# Submission time Handle Problem Language Result Execution time Memory
812321 2023-08-07T08:22:34 Z tch1cherin Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 733 ms 50124 KB 
#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;
	set<pair<int, int>> edges;
	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;
			edges.emplace(node, 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 : neighbours) {
				if (edges.count({x, y})) {
					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 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 6 ms 1748 KB Output is correct
4 Correct 6 ms 1748 KB Output is correct
5 Correct 5 ms 1736 KB Output is correct
6 Correct 6 ms 1748 KB Output is correct
7 Correct 8 ms 1748 KB Output is correct
8 Correct 2 ms 724 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 708 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 6 ms 1748 KB Output is correct
4 Correct 6 ms 1748 KB Output is correct
5 Correct 5 ms 1736 KB Output is correct
6 Correct 6 ms 1748 KB Output is correct
7 Correct 8 ms 1748 KB Output is correct
8 Correct 2 ms 724 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 708 KB Output is correct
11 Correct 5 ms 1748 KB Output is correct
12 Correct 5 ms 1748 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 5 ms 1748 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 6 ms 1812 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 6 ms 1748 KB Output is correct
19 Correct 2 ms 724 KB Output is correct
20 Correct 3 ms 1236 KB Output is correct
21 Correct 3 ms 1268 KB Output is correct
22 Correct 2 ms 708 KB Output is correct
23 Correct 8 ms 2004 KB Output is correct
24 Correct 2 ms 724 KB Output is correct
25 Correct 11 ms 1952 KB Output is correct
26 Correct 8 ms 1876 KB Output is correct
27 Correct 8 ms 1792 KB Output is correct
28 Correct 7 ms 1872 KB Output is correct
29 Correct 8 ms 1748 KB Output is correct
30 Correct 12 ms 2120 KB Output is correct
31 Correct 8 ms 2132 KB Output is correct
32 Correct 8 ms 2132 KB Output is correct
33 Correct 8 ms 2132 KB Output is correct
34 Correct 8 ms 2004 KB Output is correct
35 Correct 4 ms 1108 KB Output is correct
36 Correct 4 ms 1108 KB Output is correct
37 Correct 4 ms 1100 KB Output is correct
38 Correct 3 ms 852 KB Output is correct
39 Correct 3 ms 852 KB Output is correct
40 Correct 13 ms 2772 KB Output is correct
41 Correct 4 ms 852 KB Output is correct
42 Correct 13 ms 2772 KB Output is correct
43 Correct 13 ms 2764 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 708 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 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 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 698 ms 50120 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 683 ms 50116 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 701 ms 50124 KB Output is correct
16 Correct 666 ms 50108 KB Output is correct
17 Correct 733 ms 50108 KB Output is correct
18 Correct 643 ms 50116 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 6 ms 1748 KB Output is correct
4 Correct 6 ms 1748 KB Output is correct
5 Correct 5 ms 1736 KB Output is correct
6 Correct 6 ms 1748 KB Output is correct
7 Correct 8 ms 1748 KB Output is correct
8 Correct 2 ms 724 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 708 KB Output is correct
11 Correct 5 ms 1748 KB Output is correct
12 Correct 5 ms 1748 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 5 ms 1748 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 6 ms 1812 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 6 ms 1748 KB Output is correct
19 Correct 2 ms 724 KB Output is correct
20 Correct 3 ms 1236 KB Output is correct
21 Correct 3 ms 1268 KB Output is correct
22 Correct 2 ms 708 KB Output is correct
23 Correct 8 ms 2004 KB Output is correct
24 Correct 2 ms 724 KB Output is correct
25 Correct 11 ms 1952 KB Output is correct
26 Correct 8 ms 1876 KB Output is correct
27 Correct 8 ms 1792 KB Output is correct
28 Correct 7 ms 1872 KB Output is correct
29 Correct 8 ms 1748 KB Output is correct
30 Correct 12 ms 2120 KB Output is correct
31 Correct 8 ms 2132 KB Output is correct
32 Correct 8 ms 2132 KB Output is correct
33 Correct 8 ms 2132 KB Output is correct
34 Correct 8 ms 2004 KB Output is correct
35 Correct 4 ms 1108 KB Output is correct
36 Correct 4 ms 1108 KB Output is correct
37 Correct 4 ms 1100 KB Output is correct
38 Correct 3 ms 852 KB Output is correct
39 Correct 3 ms 852 KB Output is correct
40 Correct 13 ms 2772 KB Output is correct
41 Correct 4 ms 852 KB Output is correct
42 Correct 13 ms 2772 KB Output is correct
43 Correct 13 ms 2764 KB Output is correct
44 Correct 30 ms 4692 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 16 ms 2772 KB Output is correct
47 Correct 34 ms 4676 KB Output is correct
48 Correct 13 ms 2744 KB Output is correct
49 Correct 31 ms 4668 KB Output is correct
50 Correct 35 ms 4692 KB Output is correct
51 Correct 111 ms 8652 KB Output is correct
52 Correct 6 ms 1748 KB Output is correct
53 Correct 119 ms 9548 KB Output is correct
54 Correct 150 ms 9604 KB Output is correct
55 Correct 9 ms 1748 KB Output is correct
56 Correct 5 ms 1812 KB Output is correct
57 Correct 2 ms 724 KB Output is correct
58 Correct 120 ms 9580 KB Output is correct
59 Correct 12 ms 2684 KB Output is correct
60 Correct 6 ms 1748 KB Output is correct
61 Correct 11 ms 2764 KB Output is correct
62 Correct 13 ms 2772 KB Output is correct
63 Correct 29 ms 4692 KB Output is correct
64 Correct 22 ms 4172 KB Output is correct
65 Correct 11 ms 2516 KB Output is correct
66 Correct 11 ms 2772 KB Output is correct
67 Correct 51 ms 5460 KB Output is correct
68 Correct 24 ms 4176 KB Output is correct
69 Correct 11 ms 2476 KB Output is correct
70 Correct 26 ms 4308 KB Output is correct
71 Correct 42 ms 5452 KB Output is correct
72 Correct 52 ms 5324 KB Output is correct
73 Correct 5 ms 1744 KB Output is correct
74 Correct 27 ms 4308 KB Output is correct
75 Correct 37 ms 5316 KB Output is correct
76 Correct 19 ms 3412 KB Output is correct
77 Correct 54 ms 6472 KB Output is correct
78 Correct 5 ms 1748 KB Output is correct
79 Correct 26 ms 3276 KB Output is correct
80 Correct 20 ms 3400 KB Output is correct
81 Correct 73 ms 6372 KB Output is correct
82 Correct 4 ms 848 KB Output is correct
83 Correct 34 ms 3380 KB Output is correct
84 Correct 36 ms 5200 KB Output is correct
85 Correct 3 ms 912 KB Output is correct
86 Correct 40 ms 5204 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 6 ms 1748 KB Output is correct
4 Correct 6 ms 1748 KB Output is correct
5 Correct 5 ms 1736 KB Output is correct
6 Correct 6 ms 1748 KB Output is correct
7 Correct 8 ms 1748 KB Output is correct
8 Correct 2 ms 724 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 708 KB Output is correct
11 Correct 5 ms 1748 KB Output is correct
12 Correct 5 ms 1748 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 5 ms 1748 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 6 ms 1812 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 6 ms 1748 KB Output is correct
19 Correct 2 ms 724 KB Output is correct
20 Correct 3 ms 1236 KB Output is correct
21 Correct 3 ms 1268 KB Output is correct
22 Correct 2 ms 708 KB Output is correct
23 Correct 8 ms 2004 KB Output is correct
24 Correct 2 ms 724 KB Output is correct
25 Correct 11 ms 1952 KB Output is correct
26 Correct 8 ms 1876 KB Output is correct
27 Correct 8 ms 1792 KB Output is correct
28 Correct 7 ms 1872 KB Output is correct
29 Correct 8 ms 1748 KB Output is correct
30 Correct 12 ms 2120 KB Output is correct
31 Correct 8 ms 2132 KB Output is correct
32 Correct 8 ms 2132 KB Output is correct
33 Correct 8 ms 2132 KB Output is correct
34 Correct 8 ms 2004 KB Output is correct
35 Correct 4 ms 1108 KB Output is correct
36 Correct 4 ms 1108 KB Output is correct
37 Correct 4 ms 1100 KB Output is correct
38 Correct 3 ms 852 KB Output is correct
39 Correct 3 ms 852 KB Output is correct
40 Correct 13 ms 2772 KB Output is correct
41 Correct 4 ms 852 KB Output is correct
42 Correct 13 ms 2772 KB Output is correct
43 Correct 13 ms 2764 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 412 ms 35092 KB Output is correct
46 Correct 137 ms 20172 KB Output is correct
47 Correct 446 ms 35224 KB Output is correct
48 Correct 448 ms 35136 KB Output is correct
49 Correct 71 ms 15280 KB Output is correct
50 Correct 314 ms 45064 KB Output is correct
51 Correct 382 ms 35168 KB Output is correct
52 Correct 73 ms 15244 KB Output is correct
53 Correct 73 ms 15276 KB Output is correct
54 Correct 14 ms 5204 KB Output is correct
55 Correct 361 ms 45140 KB Output is correct
56 Correct 43 ms 10188 KB Output is correct
57 Correct 76 ms 15268 KB Output is correct
58 Correct 106 ms 20248 KB Output is correct
59 Correct 45 ms 10196 KB Output is correct
60 Correct 42 ms 10236 KB Output is correct
61 Correct 105 ms 20252 KB Output is correct
62 Correct 97 ms 15268 KB Output is correct
63 Correct 169 ms 22648 KB Output is correct
64 Correct 40 ms 10288 KB Output is correct
65 Correct 281 ms 27744 KB Output is correct
66 Correct 83 ms 15248 KB Output is correct
67 Correct 205 ms 22600 KB Output is correct
68 Correct 278 ms 26452 KB Output is correct
69 Correct 250 ms 27652 KB Output is correct
70 Correct 69 ms 15148 KB Output is correct
71 Correct 254 ms 26508 KB Output is correct
72 Correct 145 ms 21784 KB Output is correct
73 Correct 353 ms 30868 KB Output is correct
74 Correct 74 ms 15220 KB Output is correct
75 Correct 103 ms 12500 KB Output is correct
76 Correct 215 ms 21804 KB Output is correct
77 Correct 301 ms 30908 KB Output is correct
78 Correct 125 ms 15468 KB Output is correct
79 Correct 116 ms 12356 KB Output is correct
80 Correct 34 ms 6348 KB Output is correct
81 Correct 117 ms 15540 KB Output is correct
82 Correct 240 ms 25220 KB Output is correct
83 Correct 35 ms 6344 KB Output is correct
84 Correct 211 ms 25224 KB Output is correct