답안 #197161

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
197161	2020-01-19T12:00:27 Z	arnold518	Political Development (BOI17_politicaldevelopment)	C++14	54 / 100	3000 ms	25860 KB

politicaldevelopment

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

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

const int MAXN = 5e4;

int N, K, ans=1;
set<int> adj[MAXN+10];
bool vis[MAXN+10];

int main()
{
	int i, j, k;
	scanf("%d%d", &N, &K);
	for(i=1; i<=N; i++)
	{
		int s;
		scanf("%d", &s);
		while(s--) { int t; scanf("%d", &t); adj[i].insert(t+1); }
	}

	while(1)
	{
		pii t(987654321, 0);
		for(i=1; i<=N; i++) if(!vis[i]) t=min(t, pii(adj[i].size(), i));
		if(t.second==0) break;
		int now=t.second;

		vector<int> chd;
		for(auto it : adj[now]) chd.push_back(it);

		for(i=0; i<(1<<chd.size()); i++)
		{
			vector<int> V;
			for(j=0; j<chd.size(); j++) if(i&(1<<j)) V.push_back(chd[j]);
			bool flag=true;
			for(j=0; j<V.size(); j++) for(k=j+1; k<V.size(); k++) if(adj[V[j]].find(V[k])==adj[V[j]].end()) flag=false;
			if(flag) ans=max(ans, (int)V.size()+1); 
		}
		vis[now]=true;
		for(auto it : chd) adj[it].erase(now);
		adj[now].clear();
	}
	printf("%d", ans);
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:38:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(j=0; j<chd.size(); j++) if(i&(1<<j)) V.push_back(chd[j]);
             ~^~~~~~~~~~~
politicaldevelopment.cpp:40:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(j=0; j<V.size(); j++) for(k=j+1; k<V.size(); k++) if(adj[V[j]].find(V[k])==adj[V[j]].end()) flag=false;
             ~^~~~~~~~~
politicaldevelopment.cpp:40:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(j=0; j<V.size(); j++) for(k=j+1; k<V.size(); k++) if(adj[V[j]].find(V[k])==adj[V[j]].end()) flag=false;
                                         ~^~~~~~~~~
politicaldevelopment.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &K);
  ~~~~~^~~~~~~~~~~~~~~~
politicaldevelopment.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &s);
   ~~~~~^~~~~~~~~~
politicaldevelopment.cpp:22:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   while(s--) { int t; scanf("%d", &t); adj[i].insert(t+1); }
                       ~~~~~^~~~~~~~~~

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2680 KB	Output is correct
2	Correct	0 ms	2680 KB	Output is correct
3	Correct	124 ms	3064 KB	Output is correct
4	Correct	53 ms	3192 KB	Output is correct
5	Correct	53 ms	3236 KB	Output is correct
6	Correct	58 ms	3192 KB	Output is correct
7	Correct	57 ms	3320 KB	Output is correct
8	Correct	48 ms	2680 KB	Output is correct
9	Correct	4 ms	2680 KB	Output is correct
10	Correct	53 ms	2680 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2680 KB	Output is correct
2	Correct	0 ms	2680 KB	Output is correct
3	Correct	124 ms	3064 KB	Output is correct
4	Correct	53 ms	3192 KB	Output is correct
5	Correct	53 ms	3236 KB	Output is correct
6	Correct	58 ms	3192 KB	Output is correct
7	Correct	57 ms	3320 KB	Output is correct
8	Correct	48 ms	2680 KB	Output is correct
9	Correct	4 ms	2680 KB	Output is correct
10	Correct	53 ms	2680 KB	Output is correct
11	Correct	53 ms	3192 KB	Output is correct
12	Correct	55 ms	3320 KB	Output is correct
13	Correct	4 ms	2680 KB	Output is correct
14	Correct	49 ms	3408 KB	Output is correct
15	Correct	4 ms	2680 KB	Output is correct
16	Correct	58 ms	3232 KB	Output is correct
17	Correct	5 ms	2680 KB	Output is correct
18	Correct	59 ms	3064 KB	Output is correct
19	Correct	49 ms	2680 KB	Output is correct
20	Correct	86 ms	2988 KB	Output is correct
21	Correct	88 ms	3064 KB	Output is correct
22	Correct	49 ms	2680 KB	Output is correct
23	Correct	136 ms	3364 KB	Output is correct
24	Correct	48 ms	2728 KB	Output is correct
25	Correct	136 ms	3448 KB	Output is correct
26	Correct	136 ms	3320 KB	Output is correct
27	Correct	117 ms	3320 KB	Output is correct
28	Correct	144 ms	3320 KB	Output is correct
29	Correct	121 ms	3256 KB	Output is correct
30	Correct	110 ms	3448 KB	Output is correct
31	Correct	124 ms	3420 KB	Output is correct
32	Correct	120 ms	3412 KB	Output is correct
33	Correct	123 ms	3448 KB	Output is correct
34	Correct	123 ms	3320 KB	Output is correct
35	Correct	33 ms	3096 KB	Output is correct
36	Correct	33 ms	3064 KB	Output is correct
37	Correct	32 ms	2940 KB	Output is correct
38	Correct	9 ms	2936 KB	Output is correct
39	Correct	10 ms	2936 KB	Output is correct
40	Correct	147 ms	3808 KB	Output is correct
41	Correct	12 ms	2940 KB	Output is correct
42	Correct	144 ms	3704 KB	Output is correct
43	Correct	141 ms	3748 KB	Output is correct

Subtask #3
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	49 ms	2756 KB	Output is correct
2	Correct	4 ms	2684 KB	Output is correct
3	Correct	4 ms	2728 KB	Output is correct
4	Correct	4 ms	2680 KB	Output is correct
5	Correct	4 ms	2680 KB	Output is correct
6	Correct	4 ms	2680 KB	Output is correct
7	Correct	4 ms	2676 KB	Output is correct
8	Correct	4 ms	2680 KB	Output is correct
9	Correct	4 ms	2680 KB	Output is correct
10	Correct	4 ms	2680 KB	Output is correct
11	Execution timed out	3042 ms	25860 KB	Time limit exceeded
12	Halted	0 ms	0 KB	-

Subtask #4
38.0 / 38.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2680 KB	Output is correct
2	Correct	0 ms	2680 KB	Output is correct
3	Correct	124 ms	3064 KB	Output is correct
4	Correct	53 ms	3192 KB	Output is correct
5	Correct	53 ms	3236 KB	Output is correct
6	Correct	58 ms	3192 KB	Output is correct
7	Correct	57 ms	3320 KB	Output is correct
8	Correct	48 ms	2680 KB	Output is correct
9	Correct	4 ms	2680 KB	Output is correct
10	Correct	53 ms	2680 KB	Output is correct
11	Correct	53 ms	3192 KB	Output is correct
12	Correct	55 ms	3320 KB	Output is correct
13	Correct	4 ms	2680 KB	Output is correct
14	Correct	49 ms	3408 KB	Output is correct
15	Correct	4 ms	2680 KB	Output is correct
16	Correct	58 ms	3232 KB	Output is correct
17	Correct	5 ms	2680 KB	Output is correct
18	Correct	59 ms	3064 KB	Output is correct
19	Correct	49 ms	2680 KB	Output is correct
20	Correct	86 ms	2988 KB	Output is correct
21	Correct	88 ms	3064 KB	Output is correct
22	Correct	49 ms	2680 KB	Output is correct
23	Correct	136 ms	3364 KB	Output is correct
24	Correct	48 ms	2728 KB	Output is correct
25	Correct	136 ms	3448 KB	Output is correct
26	Correct	136 ms	3320 KB	Output is correct
27	Correct	117 ms	3320 KB	Output is correct
28	Correct	144 ms	3320 KB	Output is correct
29	Correct	121 ms	3256 KB	Output is correct
30	Correct	110 ms	3448 KB	Output is correct
31	Correct	124 ms	3420 KB	Output is correct
32	Correct	120 ms	3412 KB	Output is correct
33	Correct	123 ms	3448 KB	Output is correct
34	Correct	123 ms	3320 KB	Output is correct
35	Correct	33 ms	3096 KB	Output is correct
36	Correct	33 ms	3064 KB	Output is correct
37	Correct	32 ms	2940 KB	Output is correct
38	Correct	9 ms	2936 KB	Output is correct
39	Correct	10 ms	2936 KB	Output is correct
40	Correct	147 ms	3808 KB	Output is correct
41	Correct	12 ms	2940 KB	Output is correct
42	Correct	144 ms	3704 KB	Output is correct
43	Correct	141 ms	3748 KB	Output is correct
44	Correct	207 ms	4796 KB	Output is correct
45	Correct	4 ms	2680 KB	Output is correct
46	Correct	146 ms	3760 KB	Output is correct
47	Correct	157 ms	4728 KB	Output is correct
48	Correct	142 ms	3704 KB	Output is correct
49	Correct	158 ms	4728 KB	Output is correct
50	Correct	154 ms	4728 KB	Output is correct
51	Correct	642 ms	6904 KB	Output is correct
52	Correct	53 ms	3192 KB	Output is correct
53	Correct	1237 ms	7288 KB	Output is correct
54	Correct	1194 ms	7500 KB	Output is correct
55	Correct	58 ms	3196 KB	Output is correct
56	Correct	53 ms	3320 KB	Output is correct
57	Correct	48 ms	2680 KB	Output is correct
58	Correct	1195 ms	7416 KB	Output is correct
59	Correct	114 ms	3704 KB	Output is correct
60	Correct	57 ms	3192 KB	Output is correct
61	Correct	115 ms	3704 KB	Output is correct
62	Correct	120 ms	3832 KB	Output is correct
63	Correct	205 ms	4796 KB	Output is correct
64	Correct	161 ms	4568 KB	Output is correct
65	Correct	139 ms	3704 KB	Output is correct
66	Correct	114 ms	3704 KB	Output is correct
67	Correct	205 ms	5112 KB	Output is correct
68	Correct	160 ms	4472 KB	Output is correct
69	Correct	139 ms	3576 KB	Output is correct
70	Correct	140 ms	4620 KB	Output is correct
71	Correct	201 ms	5212 KB	Output is correct
72	Correct	185 ms	4984 KB	Output is correct
73	Correct	116 ms	3192 KB	Output is correct
74	Correct	150 ms	4728 KB	Output is correct
75	Correct	188 ms	5240 KB	Output is correct
76	Correct	142 ms	4088 KB	Output is correct
77	Correct	304 ms	5624 KB	Output is correct
78	Correct	118 ms	3192 KB	Output is correct
79	Correct	118 ms	4188 KB	Output is correct
80	Correct	145 ms	4104 KB	Output is correct
81	Correct	305 ms	5752 KB	Output is correct
82	Correct	10 ms	2936 KB	Output is correct
83	Correct	121 ms	4216 KB	Output is correct
84	Correct	197 ms	5080 KB	Output is correct
85	Correct	10 ms	2936 KB	Output is correct
86	Correct	192 ms	4984 KB	Output is correct

Subtask #5
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2680 KB	Output is correct
2	Correct	0 ms	2680 KB	Output is correct
3	Correct	124 ms	3064 KB	Output is correct
4	Correct	53 ms	3192 KB	Output is correct
5	Correct	53 ms	3236 KB	Output is correct
6	Correct	58 ms	3192 KB	Output is correct
7	Correct	57 ms	3320 KB	Output is correct
8	Correct	48 ms	2680 KB	Output is correct
9	Correct	4 ms	2680 KB	Output is correct
10	Correct	53 ms	2680 KB	Output is correct
11	Correct	53 ms	3192 KB	Output is correct
12	Correct	55 ms	3320 KB	Output is correct
13	Correct	4 ms	2680 KB	Output is correct
14	Correct	49 ms	3408 KB	Output is correct
15	Correct	4 ms	2680 KB	Output is correct
16	Correct	58 ms	3232 KB	Output is correct
17	Correct	5 ms	2680 KB	Output is correct
18	Correct	59 ms	3064 KB	Output is correct
19	Correct	49 ms	2680 KB	Output is correct
20	Correct	86 ms	2988 KB	Output is correct
21	Correct	88 ms	3064 KB	Output is correct
22	Correct	49 ms	2680 KB	Output is correct
23	Correct	136 ms	3364 KB	Output is correct
24	Correct	48 ms	2728 KB	Output is correct
25	Correct	136 ms	3448 KB	Output is correct
26	Correct	136 ms	3320 KB	Output is correct
27	Correct	117 ms	3320 KB	Output is correct
28	Correct	144 ms	3320 KB	Output is correct
29	Correct	121 ms	3256 KB	Output is correct
30	Correct	110 ms	3448 KB	Output is correct
31	Correct	124 ms	3420 KB	Output is correct
32	Correct	120 ms	3412 KB	Output is correct
33	Correct	123 ms	3448 KB	Output is correct
34	Correct	123 ms	3320 KB	Output is correct
35	Correct	33 ms	3096 KB	Output is correct
36	Correct	33 ms	3064 KB	Output is correct
37	Correct	32 ms	2940 KB	Output is correct
38	Correct	9 ms	2936 KB	Output is correct
39	Correct	10 ms	2936 KB	Output is correct
40	Correct	147 ms	3808 KB	Output is correct
41	Correct	12 ms	2940 KB	Output is correct
42	Correct	144 ms	3704 KB	Output is correct
43	Correct	141 ms	3748 KB	Output is correct
44	Correct	4 ms	2680 KB	Output is correct
45	Execution timed out	3029 ms	18736 KB	Time limit exceeded
46	Halted	0 ms	0 KB	-

답안 #197161

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 12.0 / 12.0

Subtask #3 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
0 / 23.0

Subtask #4
38.0 / 38.0

Subtask #5
0 / 23.0