답안 #333215

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
333215	2020-12-04T23:30:12 Z	limabeans	Political Development (BOI17_politicaldevelopment)	C++17	100 / 100	1240 ms	26860 KB

politicaldevelopment

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

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl





using ll = long long;


const int maxn = 5e4 + 10;


int n,k;
set<int> g[maxn];

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);  cout.tie(0);

    cin>>n>>k;

    for (int i=0; i<n; i++) {
	int t;
	cin>>t;
	while (t--) {
	    int x;
	    cin>>x;
	    g[i].insert(x);
	    g[x].insert(i);
	}
    }


    queue<int> qq;
    vector<bool> added(n, false);


    for (int i=0; i<n; i++) {
	if ((int)g[i].size()<k) {
	    qq.push(i);
	    added[i] = true;
	}
    }
    
    int ans = 0;

    while (qq.size()) {
	int at = qq.front();
	qq.pop();
	int len = g[at].size();
	for (int mask=0; mask<(1<<len); mask++) {
	    int val = __builtin_popcount(mask);
	    if (val <= ans) {
		continue;
	    }
	    int tmp = mask;
	    vector<int> w;
	    for (int x: g[at]) {
		if (tmp&1) {
		    w.push_back(x);
		}
		tmp >>= 1;
	    }

	    int N = w.size();
	    bool ok = true;
	    for (int i=0; i<N && ok; i++) {
		for (int j=i+1; j<N && ok; j++) {
		    ok &= (g[w[i]].count(w[j]));
		}
	    }

	    if (ok) {
		ans = max(ans, val);
	    }
	}

	for (int to: g[at]) {
	    g[to].erase(at);
	    if ((int)g[to].size()<k && !added[to]) {
		qq.push(to);
	    }
	}
	g[at].clear();
    }


    cout<<ans+1<<endl;    
    return 0;
}

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	2668 KB	Output is correct
3	Correct	5 ms	3200 KB	Output is correct
4	Correct	6 ms	3200 KB	Output is correct
5	Correct	6 ms	3180 KB	Output is correct
6	Correct	5 ms	3180 KB	Output is correct
7	Correct	6 ms	3180 KB	Output is correct
8	Correct	2 ms	2668 KB	Output is correct
9	Correct	2 ms	2668 KB	Output is correct
10	Correct	2 ms	2668 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	2668 KB	Output is correct
3	Correct	5 ms	3200 KB	Output is correct
4	Correct	6 ms	3200 KB	Output is correct
5	Correct	6 ms	3180 KB	Output is correct
6	Correct	5 ms	3180 KB	Output is correct
7	Correct	6 ms	3180 KB	Output is correct
8	Correct	2 ms	2668 KB	Output is correct
9	Correct	2 ms	2668 KB	Output is correct
10	Correct	2 ms	2668 KB	Output is correct
11	Correct	6 ms	3180 KB	Output is correct
12	Correct	6 ms	3180 KB	Output is correct
13	Correct	2 ms	2668 KB	Output is correct
14	Correct	6 ms	3180 KB	Output is correct
15	Correct	2 ms	2668 KB	Output is correct
16	Correct	5 ms	3200 KB	Output is correct
17	Correct	2 ms	2668 KB	Output is correct
18	Correct	6 ms	3200 KB	Output is correct
19	Correct	2 ms	2668 KB	Output is correct
20	Correct	3 ms	2944 KB	Output is correct
21	Correct	3 ms	2924 KB	Output is correct
22	Correct	2 ms	2668 KB	Output is correct
23	Correct	6 ms	3308 KB	Output is correct
24	Correct	2 ms	2668 KB	Output is correct
25	Correct	6 ms	3308 KB	Output is correct
26	Correct	6 ms	3328 KB	Output is correct
27	Correct	5 ms	3180 KB	Output is correct
28	Correct	6 ms	3308 KB	Output is correct
29	Correct	5 ms	3180 KB	Output is correct
30	Correct	7 ms	3436 KB	Output is correct
31	Correct	6 ms	3436 KB	Output is correct
32	Correct	7 ms	3436 KB	Output is correct
33	Correct	6 ms	3436 KB	Output is correct
34	Correct	8 ms	3436 KB	Output is correct
35	Correct	4 ms	3052 KB	Output is correct
36	Correct	4 ms	3052 KB	Output is correct
37	Correct	4 ms	3052 KB	Output is correct
38	Correct	3 ms	2924 KB	Output is correct
39	Correct	4 ms	2924 KB	Output is correct
40	Correct	9 ms	3692 KB	Output is correct
41	Correct	3 ms	2924 KB	Output is correct
42	Correct	8 ms	3692 KB	Output is correct
43	Correct	8 ms	3692 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2668 KB	Output is correct
2	Correct	2 ms	2688 KB	Output is correct
3	Correct	2 ms	2668 KB	Output is correct
4	Correct	2 ms	2816 KB	Output is correct
5	Correct	2 ms	2668 KB	Output is correct
6	Correct	2 ms	2668 KB	Output is correct
7	Correct	2 ms	2668 KB	Output is correct
8	Correct	2 ms	2668 KB	Output is correct
9	Correct	2 ms	2668 KB	Output is correct
10	Correct	2 ms	2668 KB	Output is correct
11	Correct	1199 ms	26860 KB	Output is correct
12	Correct	2 ms	2688 KB	Output is correct
13	Correct	440 ms	26732 KB	Output is correct
14	Correct	2 ms	2668 KB	Output is correct
15	Correct	1240 ms	26732 KB	Output is correct
16	Correct	473 ms	26732 KB	Output is correct
17	Correct	810 ms	26732 KB	Output is correct
18	Correct	957 ms	26824 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	2668 KB	Output is correct
3	Correct	5 ms	3200 KB	Output is correct
4	Correct	6 ms	3200 KB	Output is correct
5	Correct	6 ms	3180 KB	Output is correct
6	Correct	5 ms	3180 KB	Output is correct
7	Correct	6 ms	3180 KB	Output is correct
8	Correct	2 ms	2668 KB	Output is correct
9	Correct	2 ms	2668 KB	Output is correct
10	Correct	2 ms	2668 KB	Output is correct
11	Correct	6 ms	3180 KB	Output is correct
12	Correct	6 ms	3180 KB	Output is correct
13	Correct	2 ms	2668 KB	Output is correct
14	Correct	6 ms	3180 KB	Output is correct
15	Correct	2 ms	2668 KB	Output is correct
16	Correct	5 ms	3200 KB	Output is correct
17	Correct	2 ms	2668 KB	Output is correct
18	Correct	6 ms	3200 KB	Output is correct
19	Correct	2 ms	2668 KB	Output is correct
20	Correct	3 ms	2944 KB	Output is correct
21	Correct	3 ms	2924 KB	Output is correct
22	Correct	2 ms	2668 KB	Output is correct
23	Correct	6 ms	3308 KB	Output is correct
24	Correct	2 ms	2668 KB	Output is correct
25	Correct	6 ms	3308 KB	Output is correct
26	Correct	6 ms	3328 KB	Output is correct
27	Correct	5 ms	3180 KB	Output is correct
28	Correct	6 ms	3308 KB	Output is correct
29	Correct	5 ms	3180 KB	Output is correct
30	Correct	7 ms	3436 KB	Output is correct
31	Correct	6 ms	3436 KB	Output is correct
32	Correct	7 ms	3436 KB	Output is correct
33	Correct	6 ms	3436 KB	Output is correct
34	Correct	8 ms	3436 KB	Output is correct
35	Correct	4 ms	3052 KB	Output is correct
36	Correct	4 ms	3052 KB	Output is correct
37	Correct	4 ms	3052 KB	Output is correct
38	Correct	3 ms	2924 KB	Output is correct
39	Correct	4 ms	2924 KB	Output is correct
40	Correct	9 ms	3692 KB	Output is correct
41	Correct	3 ms	2924 KB	Output is correct
42	Correct	8 ms	3692 KB	Output is correct
43	Correct	8 ms	3692 KB	Output is correct
44	Correct	14 ms	4844 KB	Output is correct
45	Correct	2 ms	2668 KB	Output is correct
46	Correct	9 ms	3692 KB	Output is correct
47	Correct	23 ms	4716 KB	Output is correct
48	Correct	9 ms	3692 KB	Output is correct
49	Correct	23 ms	4716 KB	Output is correct
50	Correct	32 ms	4716 KB	Output is correct
51	Correct	268 ms	6892 KB	Output is correct
52	Correct	6 ms	3180 KB	Output is correct
53	Correct	599 ms	7404 KB	Output is correct
54	Correct	555 ms	7532 KB	Output is correct
55	Correct	6 ms	3180 KB	Output is correct
56	Correct	5 ms	3180 KB	Output is correct
57	Correct	2 ms	2668 KB	Output is correct
58	Correct	615 ms	7532 KB	Output is correct
59	Correct	8 ms	3692 KB	Output is correct
60	Correct	5 ms	3180 KB	Output is correct
61	Correct	7 ms	3692 KB	Output is correct
62	Correct	7 ms	3692 KB	Output is correct
63	Correct	15 ms	4844 KB	Output is correct
64	Correct	12 ms	4460 KB	Output is correct
65	Correct	8 ms	3564 KB	Output is correct
66	Correct	7 ms	3692 KB	Output is correct
67	Correct	30 ms	5228 KB	Output is correct
68	Correct	12 ms	4460 KB	Output is correct
69	Correct	8 ms	3564 KB	Output is correct
70	Correct	16 ms	4588 KB	Output is correct
71	Correct	24 ms	5228 KB	Output is correct
72	Correct	22 ms	5120 KB	Output is correct
73	Correct	5 ms	3180 KB	Output is correct
74	Correct	16 ms	4588 KB	Output is correct
75	Correct	21 ms	5100 KB	Output is correct
76	Correct	15 ms	4076 KB	Output is correct
77	Correct	184 ms	5868 KB	Output is correct
78	Correct	5 ms	3180 KB	Output is correct
79	Correct	93 ms	4204 KB	Output is correct
80	Correct	16 ms	4076 KB	Output is correct
81	Correct	182 ms	5740 KB	Output is correct
82	Correct	4 ms	2924 KB	Output is correct
83	Correct	93 ms	4204 KB	Output is correct
84	Correct	90 ms	5100 KB	Output is correct
85	Correct	4 ms	2924 KB	Output is correct
86	Correct	28 ms	5100 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	2668 KB	Output is correct
3	Correct	5 ms	3200 KB	Output is correct
4	Correct	6 ms	3200 KB	Output is correct
5	Correct	6 ms	3180 KB	Output is correct
6	Correct	5 ms	3180 KB	Output is correct
7	Correct	6 ms	3180 KB	Output is correct
8	Correct	2 ms	2668 KB	Output is correct
9	Correct	2 ms	2668 KB	Output is correct
10	Correct	2 ms	2668 KB	Output is correct
11	Correct	6 ms	3180 KB	Output is correct
12	Correct	6 ms	3180 KB	Output is correct
13	Correct	2 ms	2668 KB	Output is correct
14	Correct	6 ms	3180 KB	Output is correct
15	Correct	2 ms	2668 KB	Output is correct
16	Correct	5 ms	3200 KB	Output is correct
17	Correct	2 ms	2668 KB	Output is correct
18	Correct	6 ms	3200 KB	Output is correct
19	Correct	2 ms	2668 KB	Output is correct
20	Correct	3 ms	2944 KB	Output is correct
21	Correct	3 ms	2924 KB	Output is correct
22	Correct	2 ms	2668 KB	Output is correct
23	Correct	6 ms	3308 KB	Output is correct
24	Correct	2 ms	2668 KB	Output is correct
25	Correct	6 ms	3308 KB	Output is correct
26	Correct	6 ms	3328 KB	Output is correct
27	Correct	5 ms	3180 KB	Output is correct
28	Correct	6 ms	3308 KB	Output is correct
29	Correct	5 ms	3180 KB	Output is correct
30	Correct	7 ms	3436 KB	Output is correct
31	Correct	6 ms	3436 KB	Output is correct
32	Correct	7 ms	3436 KB	Output is correct
33	Correct	6 ms	3436 KB	Output is correct
34	Correct	8 ms	3436 KB	Output is correct
35	Correct	4 ms	3052 KB	Output is correct
36	Correct	4 ms	3052 KB	Output is correct
37	Correct	4 ms	3052 KB	Output is correct
38	Correct	3 ms	2924 KB	Output is correct
39	Correct	4 ms	2924 KB	Output is correct
40	Correct	9 ms	3692 KB	Output is correct
41	Correct	3 ms	2924 KB	Output is correct
42	Correct	8 ms	3692 KB	Output is correct
43	Correct	8 ms	3692 KB	Output is correct
44	Correct	2 ms	2668 KB	Output is correct
45	Correct	238 ms	18712 KB	Output is correct
46	Correct	87 ms	10860 KB	Output is correct
47	Correct	261 ms	18924 KB	Output is correct
48	Correct	248 ms	18816 KB	Output is correct
49	Correct	55 ms	8300 KB	Output is correct
50	Correct	345 ms	24044 KB	Output is correct
51	Correct	256 ms	18796 KB	Output is correct
52	Correct	48 ms	8300 KB	Output is correct
53	Correct	56 ms	8428 KB	Output is correct
54	Correct	6 ms	3052 KB	Output is correct
55	Correct	351 ms	24192 KB	Output is correct
56	Correct	19 ms	5612 KB	Output is correct
57	Correct	50 ms	8300 KB	Output is correct
58	Correct	57 ms	10860 KB	Output is correct
59	Correct	18 ms	5612 KB	Output is correct
60	Correct	18 ms	5612 KB	Output is correct
61	Correct	57 ms	10860 KB	Output is correct
62	Correct	38 ms	8300 KB	Output is correct
63	Correct	99 ms	12140 KB	Output is correct
64	Correct	19 ms	5612 KB	Output is correct
65	Correct	141 ms	14828 KB	Output is correct
66	Correct	37 ms	8300 KB	Output is correct
67	Correct	102 ms	12140 KB	Output is correct
68	Correct	140 ms	14060 KB	Output is correct
69	Correct	149 ms	14700 KB	Output is correct
70	Correct	42 ms	8320 KB	Output is correct
71	Correct	141 ms	14188 KB	Output is correct
72	Correct	95 ms	11756 KB	Output is correct
73	Correct	210 ms	16492 KB	Output is correct
74	Correct	42 ms	8300 KB	Output is correct
75	Correct	50 ms	7916 KB	Output is correct
76	Correct	104 ms	11884 KB	Output is correct
77	Correct	210 ms	16492 KB	Output is correct
78	Correct	84 ms	9580 KB	Output is correct
79	Correct	50 ms	7916 KB	Output is correct
80	Correct	23 ms	5356 KB	Output is correct
81	Correct	88 ms	9580 KB	Output is correct
82	Correct	112 ms	13548 KB	Output is correct
83	Correct	22 ms	5356 KB	Output is correct
84	Correct	119 ms	13548 KB	Output is correct

답안 #333215

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