Submission #478055

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
478055	2021-10-05T12:36:52 Z	Sohsoh84	Political Development (BOI17_politicaldevelopment)	C++17	16 / 100	326 ms	69272 KB

politicaldevelopment

// ?
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;

#define all(x)			(x).begin(),(x).end()
#define X			first
#define Y			second
#define sep			' '
#define endl			'\n'
#define debug(x)		cerr << #x << ": " <<  x << endl;

const ll MAXN = 1e6 + 10;

set<int> adj[MAXN];
set<pll> st;
int n, k, ans = 1, msk_adj[MAXN];
bool dp[MAXN];

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin >> n >> k;
	for (int i = 1; i <= n; i++) {
		int d;
		cin >> d;
		for (int j = 1; j <= d; j++) {
			int v;
			cin >> v;
			v++;
			adj[i].insert(v);
		}
		
		st.insert({adj[i].size(), i});
	}

	while (!st.empty()) {
		int v = st.begin() -> Y;
		st.erase(st.begin());

		vector<int> vec;
		for (int e : adj[v]) {
			st.erase({adj[e].size(), e});
			adj[e].erase(v);
			vec.push_back(e);
			st.insert({adj[e].size(), e});
		}

		int sz = vec.size();
		for (int i = 0; i < sz; i++)
			for (int j = 0; j < sz; j++)
				msk_adj[i] ^= (adj[vec[i]].find(vec[j]) == adj[vec[i]].end() ? 0 : (1 << j));

		dp[0] = true;
		for (int msk = 1; msk < (1 << sz); msk++) {
			int ind = __builtin_ctz(msk), tmsk = msk - (1 << ind);
			dp[msk] = (dp[tmsk] && (tmsk & msk_adj[ind]) == tmsk);
		
			if (dp[msk]) ans = max(ans, __builtin_popcount(msk) + 1);
		}

	}

	cout << ans << endl;
	return 0; 
}

Subtask #1
4.0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	47272 KB	Output is correct
2	Correct	23 ms	47180 KB	Output is correct
3	Correct	30 ms	48136 KB	Output is correct
4	Correct	28 ms	48000 KB	Output is correct
5	Correct	30 ms	48040 KB	Output is correct
6	Correct	29 ms	48024 KB	Output is correct
7	Correct	30 ms	48024 KB	Output is correct
8	Correct	27 ms	47564 KB	Output is correct
9	Correct	24 ms	47180 KB	Output is correct
10	Correct	25 ms	47524 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	47272 KB	Output is correct
2	Correct	23 ms	47180 KB	Output is correct
3	Correct	30 ms	48136 KB	Output is correct
4	Correct	28 ms	48000 KB	Output is correct
5	Correct	30 ms	48040 KB	Output is correct
6	Correct	29 ms	48024 KB	Output is correct
7	Correct	30 ms	48024 KB	Output is correct
8	Correct	27 ms	47564 KB	Output is correct
9	Correct	24 ms	47180 KB	Output is correct
10	Correct	25 ms	47524 KB	Output is correct
11	Correct	28 ms	48040 KB	Output is correct
12	Correct	28 ms	48080 KB	Output is correct
13	Correct	26 ms	47288 KB	Output is correct
14	Correct	29 ms	48016 KB	Output is correct
15	Correct	24 ms	47180 KB	Output is correct
16	Correct	30 ms	47992 KB	Output is correct
17	Correct	23 ms	47244 KB	Output is correct
18	Correct	32 ms	48064 KB	Output is correct
19	Correct	27 ms	47564 KB	Output is correct
20	Correct	28 ms	47716 KB	Output is correct
21	Correct	27 ms	47820 KB	Output is correct
22	Correct	26 ms	47564 KB	Output is correct
23	Correct	33 ms	48152 KB	Output is correct
24	Correct	28 ms	47576 KB	Output is correct
25	Correct	30 ms	48076 KB	Output is correct
26	Correct	30 ms	48080 KB	Output is correct
27	Correct	28 ms	48040 KB	Output is correct
28	Correct	33 ms	48076 KB	Output is correct
29	Correct	30 ms	47980 KB	Output is correct
30	Correct	35 ms	48204 KB	Output is correct
31	Correct	35 ms	48236 KB	Output is correct
32	Correct	30 ms	48204 KB	Output is correct
33	Correct	32 ms	48212 KB	Output is correct
34	Correct	32 ms	48224 KB	Output is correct
35	Correct	28 ms	47768 KB	Output is correct
36	Correct	28 ms	47768 KB	Output is correct
37	Correct	31 ms	47748 KB	Output is correct
38	Correct	28 ms	47564 KB	Output is correct
39	Correct	28 ms	47564 KB	Output is correct
40	Correct	35 ms	48460 KB	Output is correct
41	Correct	26 ms	47592 KB	Output is correct
42	Correct	39 ms	48536 KB	Output is correct
43	Correct	38 ms	48528 KB	Output is correct

Subtask #3
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	25 ms	47548 KB	Output is correct
2	Correct	24 ms	47192 KB	Output is correct
3	Correct	25 ms	47260 KB	Output is correct
4	Correct	28 ms	47172 KB	Output is correct
5	Correct	25 ms	47220 KB	Output is correct
6	Incorrect	24 ms	47180 KB	Output isn't correct
7	Halted	0 ms	0 KB	-

Subtask #4
0 / 38.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	47272 KB	Output is correct
2	Correct	23 ms	47180 KB	Output is correct
3	Correct	30 ms	48136 KB	Output is correct
4	Correct	28 ms	48000 KB	Output is correct
5	Correct	30 ms	48040 KB	Output is correct
6	Correct	29 ms	48024 KB	Output is correct
7	Correct	30 ms	48024 KB	Output is correct
8	Correct	27 ms	47564 KB	Output is correct
9	Correct	24 ms	47180 KB	Output is correct
10	Correct	25 ms	47524 KB	Output is correct
11	Correct	28 ms	48040 KB	Output is correct
12	Correct	28 ms	48080 KB	Output is correct
13	Correct	26 ms	47288 KB	Output is correct
14	Correct	29 ms	48016 KB	Output is correct
15	Correct	24 ms	47180 KB	Output is correct
16	Correct	30 ms	47992 KB	Output is correct
17	Correct	23 ms	47244 KB	Output is correct
18	Correct	32 ms	48064 KB	Output is correct
19	Correct	27 ms	47564 KB	Output is correct
20	Correct	28 ms	47716 KB	Output is correct
21	Correct	27 ms	47820 KB	Output is correct
22	Correct	26 ms	47564 KB	Output is correct
23	Correct	33 ms	48152 KB	Output is correct
24	Correct	28 ms	47576 KB	Output is correct
25	Correct	30 ms	48076 KB	Output is correct
26	Correct	30 ms	48080 KB	Output is correct
27	Correct	28 ms	48040 KB	Output is correct
28	Correct	33 ms	48076 KB	Output is correct
29	Correct	30 ms	47980 KB	Output is correct
30	Correct	35 ms	48204 KB	Output is correct
31	Correct	35 ms	48236 KB	Output is correct
32	Correct	30 ms	48204 KB	Output is correct
33	Correct	32 ms	48212 KB	Output is correct
34	Correct	32 ms	48224 KB	Output is correct
35	Correct	28 ms	47768 KB	Output is correct
36	Correct	28 ms	47768 KB	Output is correct
37	Correct	31 ms	47748 KB	Output is correct
38	Correct	28 ms	47564 KB	Output is correct
39	Correct	28 ms	47564 KB	Output is correct
40	Correct	35 ms	48460 KB	Output is correct
41	Correct	26 ms	47592 KB	Output is correct
42	Correct	39 ms	48536 KB	Output is correct
43	Correct	38 ms	48528 KB	Output is correct
44	Incorrect	50 ms	49452 KB	Output isn't correct
45	Halted	0 ms	0 KB	-

Subtask #5
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	47272 KB	Output is correct
2	Correct	23 ms	47180 KB	Output is correct
3	Correct	30 ms	48136 KB	Output is correct
4	Correct	28 ms	48000 KB	Output is correct
5	Correct	30 ms	48040 KB	Output is correct
6	Correct	29 ms	48024 KB	Output is correct
7	Correct	30 ms	48024 KB	Output is correct
8	Correct	27 ms	47564 KB	Output is correct
9	Correct	24 ms	47180 KB	Output is correct
10	Correct	25 ms	47524 KB	Output is correct
11	Correct	28 ms	48040 KB	Output is correct
12	Correct	28 ms	48080 KB	Output is correct
13	Correct	26 ms	47288 KB	Output is correct
14	Correct	29 ms	48016 KB	Output is correct
15	Correct	24 ms	47180 KB	Output is correct
16	Correct	30 ms	47992 KB	Output is correct
17	Correct	23 ms	47244 KB	Output is correct
18	Correct	32 ms	48064 KB	Output is correct
19	Correct	27 ms	47564 KB	Output is correct
20	Correct	28 ms	47716 KB	Output is correct
21	Correct	27 ms	47820 KB	Output is correct
22	Correct	26 ms	47564 KB	Output is correct
23	Correct	33 ms	48152 KB	Output is correct
24	Correct	28 ms	47576 KB	Output is correct
25	Correct	30 ms	48076 KB	Output is correct
26	Correct	30 ms	48080 KB	Output is correct
27	Correct	28 ms	48040 KB	Output is correct
28	Correct	33 ms	48076 KB	Output is correct
29	Correct	30 ms	47980 KB	Output is correct
30	Correct	35 ms	48204 KB	Output is correct
31	Correct	35 ms	48236 KB	Output is correct
32	Correct	30 ms	48204 KB	Output is correct
33	Correct	32 ms	48212 KB	Output is correct
34	Correct	32 ms	48224 KB	Output is correct
35	Correct	28 ms	47768 KB	Output is correct
36	Correct	28 ms	47768 KB	Output is correct
37	Correct	31 ms	47748 KB	Output is correct
38	Correct	28 ms	47564 KB	Output is correct
39	Correct	28 ms	47564 KB	Output is correct
40	Correct	35 ms	48460 KB	Output is correct
41	Correct	26 ms	47592 KB	Output is correct
42	Correct	39 ms	48536 KB	Output is correct
43	Correct	38 ms	48528 KB	Output is correct
44	Correct	30 ms	47296 KB	Output is correct
45	Correct	290 ms	64480 KB	Output is correct
46	Correct	125 ms	57376 KB	Output is correct
47	Correct	326 ms	64512 KB	Output is correct
48	Correct	292 ms	64492 KB	Output is correct
49	Correct	86 ms	55108 KB	Output is correct
50	Correct	308 ms	69272 KB	Output is correct
51	Correct	292 ms	64408 KB	Output is correct
52	Correct	91 ms	55108 KB	Output is correct
53	Correct	83 ms	55108 KB	Output is correct
54	Correct	44 ms	50460 KB	Output is correct
55	Correct	324 ms	69188 KB	Output is correct
56	Correct	57 ms	52756 KB	Output is correct
57	Correct	95 ms	55108 KB	Output is correct
58	Incorrect	115 ms	57448 KB	Output isn't correct
59	Halted	0 ms	0 KB	-

Submission #478055

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 12.0 / 12.0

Subtask #3 0 / 23.0

Subtask #4 0 / 38.0

Subtask #5 0 / 23.0

Subtask #1
4.0 / 4.0

Subtask #2
12.0 / 12.0

Subtask #3
0 / 23.0

Subtask #4
0 / 38.0

Subtask #5
0 / 23.0