oj.uz

Submission #542729

# Submission time Handle Problem Language Result Execution time Memory
542729 2022-03-27T18:09:13 Z skittles1412 Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 470 ms 8884 KB 
#include "bits/extc++.h"

using namespace std;

template <typename T>
void dbgh(const T& t) {
	cerr << t << endl;
}

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
	cerr << t << " | ";
	dbgh(u...);
}

#ifdef DEBUG
#define dbg(...)                                           \
	cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
		 << ": ";                                          \
	dbgh(__VA_ARGS__)
#else
#define cerr   \
	if (false) \
	cerr
#define dbg(...)
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())

template <typename T>
using min_pq = priority_queue<T, vector<T>, greater<T>>;

bool on(int msk, int bit) {
	return (msk >> bit) & 1;
}

int clique(const vector<vector<bool>>& graph) {
	int n = sz(graph);
	int dp[1 << n];
	for (int i = (1 << n) - 1; i >= 0; i--) {
		dp[i] = __builtin_popcount(i);
		for (int j = 0; j < n; j++) {
			if (!on(i, j)) {
				for (int k = 0; k < n; k++) {
					if (on(i, k) && !graph[j][k]) {
						goto loop;
					}
				}
				dp[i] = max(dp[i], dp[i | (1 << j)]);
			loop:;
			}
		}
	}
	return dp[0];
}

void solve() {
	int n, k;
	cin >> n >> k;
	vector<int> graph[n];
	for (auto& a : graph) {
		int m;
		cin >> m;
		a.resize(m);
		for (auto& b : a) {
			cin >> b;
		}
		sort(begin(a), end(a));
	}
	bool del[n] {};
	int deg[n] {};
	for (int i = 0; i < n; i++) {
		deg[i] = sz(graph[i]);
	}
	min_pq<pair<int, int>> pq;
	for (int i = 0; i < n; i++) {
		pq.emplace(deg[i], i);
	}
	int ans = 0;
	for (int _ = 0; _ < n; _++) {
		int u;
		while (true) {
			auto [d, v] = pq.top();
			pq.pop();
			if (!del[v] && deg[v] == d) {
				u = v;
				break;
			}
		}
		dbg(u);
		del[u] = true;
		for (auto& a : graph[u]) {
			deg[a]--; 
			pq.emplace(deg[a], a);
		}
		vector<int> cur = {u};
		for (auto& a : graph[u]) {
			if (!del[a]) {
				dbg(a);
				cur.push_back(a);
			}
		}
		int m = sz(cur);
		vector<vector<bool>> cg(m, vector<bool> (m));
		for (int i = 0; i < m; i++) {
			for (int j = i + 1; j < m; j++) {
				if (binary_search(begin(graph[cur[i]]), end(graph[cur[i]]), cur[j])) {
					cg[i][j] = cg[j][i] = true;
				}
			}
		}
		ans = max(ans, clique(cg));
	}
	cout << ans << endl;
}

int main() {
	cin.tie(nullptr);
	ios_base::sync_with_stdio(false);
	cin.exceptions(ios::failbit);
	solve();
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 5 ms 596 KB Output is correct
4 Correct 4 ms 736 KB Output is correct
5 Correct 4 ms 852 KB Output is correct
6 Correct 4 ms 724 KB Output is correct
7 Correct 4 ms 724 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 468 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 0 ms 212 KB Output is correct
3 Correct 5 ms 596 KB Output is correct
4 Correct 4 ms 736 KB Output is correct
5 Correct 4 ms 852 KB Output is correct
6 Correct 4 ms 724 KB Output is correct
7 Correct 4 ms 724 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 4 ms 852 KB Output is correct
12 Correct 4 ms 804 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 5 ms 724 KB Output is correct
15 Correct 6 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 4 ms 724 KB Output is correct
19 Correct 2 ms 468 KB Output is correct
20 Correct 3 ms 596 KB Output is correct
21 Correct 3 ms 724 KB Output is correct
22 Correct 2 ms 468 KB Output is correct
23 Correct 5 ms 728 KB Output is correct
24 Correct 2 ms 576 KB Output is correct
25 Correct 5 ms 724 KB Output is correct
26 Correct 8 ms 728 KB Output is correct
27 Correct 4 ms 780 KB Output is correct
28 Correct 5 ms 728 KB Output is correct
29 Correct 5 ms 784 KB Output is correct
30 Correct 6 ms 820 KB Output is correct
31 Correct 6 ms 804 KB Output is correct
32 Correct 6 ms 724 KB Output is correct
33 Correct 5 ms 800 KB Output is correct
34 Correct 5 ms 724 KB Output is correct
35 Correct 3 ms 468 KB Output is correct
36 Correct 3 ms 468 KB Output is correct
37 Correct 3 ms 468 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 8 ms 952 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 7 ms 852 KB Output is correct
43 Correct 8 ms 844 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 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 323 ms 8800 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 331 ms 8884 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 299 ms 8788 KB Output is correct
16 Correct 336 ms 8836 KB Output is correct
17 Correct 319 ms 8876 KB Output is correct
18 Correct 371 ms 8792 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 0 ms 212 KB Output is correct
3 Correct 5 ms 596 KB Output is correct
4 Correct 4 ms 736 KB Output is correct
5 Correct 4 ms 852 KB Output is correct
6 Correct 4 ms 724 KB Output is correct
7 Correct 4 ms 724 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 4 ms 852 KB Output is correct
12 Correct 4 ms 804 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 5 ms 724 KB Output is correct
15 Correct 6 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 4 ms 724 KB Output is correct
19 Correct 2 ms 468 KB Output is correct
20 Correct 3 ms 596 KB Output is correct
21 Correct 3 ms 724 KB Output is correct
22 Correct 2 ms 468 KB Output is correct
23 Correct 5 ms 728 KB Output is correct
24 Correct 2 ms 576 KB Output is correct
25 Correct 5 ms 724 KB Output is correct
26 Correct 8 ms 728 KB Output is correct
27 Correct 4 ms 780 KB Output is correct
28 Correct 5 ms 728 KB Output is correct
29 Correct 5 ms 784 KB Output is correct
30 Correct 6 ms 820 KB Output is correct
31 Correct 6 ms 804 KB Output is correct
32 Correct 6 ms 724 KB Output is correct
33 Correct 5 ms 800 KB Output is correct
34 Correct 5 ms 724 KB Output is correct
35 Correct 3 ms 468 KB Output is correct
36 Correct 3 ms 468 KB Output is correct
37 Correct 3 ms 468 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 8 ms 952 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 7 ms 852 KB Output is correct
43 Correct 8 ms 844 KB Output is correct
44 Correct 110 ms 988 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 8 ms 864 KB Output is correct
47 Correct 20 ms 1236 KB Output is correct
48 Correct 8 ms 872 KB Output is correct
49 Correct 17 ms 1264 KB Output is correct
50 Correct 19 ms 1236 KB Output is correct
51 Correct 211 ms 1840 KB Output is correct
52 Correct 4 ms 852 KB Output is correct
53 Correct 441 ms 1956 KB Output is correct
54 Correct 470 ms 1944 KB Output is correct
55 Correct 4 ms 724 KB Output is correct
56 Correct 4 ms 852 KB Output is correct
57 Correct 2 ms 468 KB Output is correct
58 Correct 440 ms 1948 KB Output is correct
59 Correct 7 ms 724 KB Output is correct
60 Correct 4 ms 716 KB Output is correct
61 Correct 8 ms 724 KB Output is correct
62 Correct 7 ms 808 KB Output is correct
63 Correct 99 ms 888 KB Output is correct
64 Correct 46 ms 956 KB Output is correct
65 Correct 8 ms 856 KB Output is correct
66 Correct 7 ms 716 KB Output is correct
67 Correct 52 ms 1324 KB Output is correct
68 Correct 41 ms 880 KB Output is correct
69 Correct 7 ms 848 KB Output is correct
70 Correct 19 ms 1108 KB Output is correct
71 Correct 54 ms 1232 KB Output is correct
72 Correct 38 ms 1300 KB Output is correct
73 Correct 4 ms 720 KB Output is correct
74 Correct 17 ms 1120 KB Output is correct
75 Correct 35 ms 1336 KB Output is correct
76 Correct 9 ms 980 KB Output is correct
77 Correct 73 ms 1408 KB Output is correct
78 Correct 5 ms 720 KB Output is correct
79 Correct 38 ms 856 KB Output is correct
80 Correct 10 ms 980 KB Output is correct
81 Correct 73 ms 1344 KB Output is correct
82 Correct 2 ms 468 KB Output is correct
83 Correct 37 ms 860 KB Output is correct
84 Correct 31 ms 1244 KB Output is correct
85 Correct 2 ms 468 KB Output is correct
86 Correct 34 ms 1276 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 0 ms 212 KB Output is correct
3 Correct 5 ms 596 KB Output is correct
4 Correct 4 ms 736 KB Output is correct
5 Correct 4 ms 852 KB Output is correct
6 Correct 4 ms 724 KB Output is correct
7 Correct 4 ms 724 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 4 ms 852 KB Output is correct
12 Correct 4 ms 804 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 5 ms 724 KB Output is correct
15 Correct 6 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 4 ms 724 KB Output is correct
19 Correct 2 ms 468 KB Output is correct
20 Correct 3 ms 596 KB Output is correct
21 Correct 3 ms 724 KB Output is correct
22 Correct 2 ms 468 KB Output is correct
23 Correct 5 ms 728 KB Output is correct
24 Correct 2 ms 576 KB Output is correct
25 Correct 5 ms 724 KB Output is correct
26 Correct 8 ms 728 KB Output is correct
27 Correct 4 ms 780 KB Output is correct
28 Correct 5 ms 728 KB Output is correct
29 Correct 5 ms 784 KB Output is correct
30 Correct 6 ms 820 KB Output is correct
31 Correct 6 ms 804 KB Output is correct
32 Correct 6 ms 724 KB Output is correct
33 Correct 5 ms 800 KB Output is correct
34 Correct 5 ms 724 KB Output is correct
35 Correct 3 ms 468 KB Output is correct
36 Correct 3 ms 468 KB Output is correct
37 Correct 3 ms 468 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 8 ms 952 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 7 ms 852 KB Output is correct
43 Correct 8 ms 844 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 137 ms 7604 KB Output is correct
46 Correct 59 ms 5468 KB Output is correct
47 Correct 120 ms 7604 KB Output is correct
48 Correct 121 ms 7564 KB Output is correct
49 Correct 51 ms 5264 KB Output is correct
50 Correct 142 ms 8616 KB Output is correct
51 Correct 111 ms 7544 KB Output is correct
52 Correct 36 ms 4764 KB Output is correct
53 Correct 37 ms 5304 KB Output is correct
54 Correct 13 ms 2392 KB Output is correct
55 Correct 151 ms 8576 KB Output is correct
56 Correct 30 ms 4308 KB Output is correct
57 Correct 36 ms 4680 KB Output is correct
58 Correct 57 ms 4836 KB Output is correct
59 Correct 34 ms 4328 KB Output is correct
60 Correct 36 ms 4304 KB Output is correct
61 Correct 62 ms 4820 KB Output is correct
62 Correct 42 ms 4568 KB Output is correct
63 Correct 68 ms 5496 KB Output is correct
64 Correct 31 ms 4332 KB Output is correct
65 Correct 87 ms 5936 KB Output is correct
66 Correct 58 ms 4524 KB Output is correct
67 Correct 84 ms 5532 KB Output is correct
68 Correct 81 ms 5744 KB Output is correct
69 Correct 98 ms 5940 KB Output is correct
70 Correct 43 ms 4556 KB Output is correct
71 Correct 85 ms 5808 KB Output is correct
72 Correct 71 ms 5540 KB Output is correct
73 Correct 88 ms 6084 KB Output is correct
74 Correct 38 ms 4516 KB Output is correct
75 Correct 35 ms 2924 KB Output is correct
76 Correct 84 ms 5648 KB Output is correct
77 Correct 97 ms 6052 KB Output is correct
78 Correct 45 ms 3392 KB Output is correct
79 Correct 41 ms 2924 KB Output is correct
80 Correct 16 ms 1816 KB Output is correct
81 Correct 48 ms 3264 KB Output is correct
82 Correct 84 ms 5580 KB Output is correct
83 Correct 15 ms 1748 KB Output is correct
84 Correct 69 ms 5596 KB Output is correct