답안 #199998

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
199998	2020-02-04T17:19:19 Z	davitmarg	Amusement Park (CEOI19_amusementpark)	C++17	63 / 100	3000 ms	4284 KB

amusementpark

/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <queue>
#include <iomanip>
#include <stack>
#include <cassert>
#include <iterator>
#include <bitset>
#include <fstream>
#define mod 998244353ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(),v.end()
using namespace std;
 
LL binpow(LL a,int n)
{
	if(n==0)
		return 1;
	if(n%2==0)
		return binpow(a*a%mod,n/2);
	return a*binpow(a,n-1)%mod;
}
 
bool inMask(int a,int mask)
{
	return (bool)((1<<a)&mask);
}
 
int n,m;
int ans[(1<<18)+10],cnt[(1<<18)+10];
vector<pair<int,int>> p;
vector<int> g[20];
bool isEdge[(1<<18)+10];
int main()
{
	cin>>n>>m;
	for(int i=1;i<=m;i++)
	{
		int a,b;
		cin>>a>>b;
		a--;
		b--;
		g[a].PB(b);
		g[b].PB(a);
		p.PB(MP(a,b));
	}
	//for(int i=0;i<n;i++)
	//	ans[(1<<i)]=1;
 
	for(int mask=0;mask<(1<<n);mask++)
	{
		for(int i=0;i<n;i++)
		{
			if(((1<<i)&mask)==0)
				continue;
			cnt[mask]++;
			for(int j=0;j<g[i].size();j++)
				isEdge[mask]|=inMask(g[i][j],mask);
		}
		//cout<<"cnt["<<mask<<"]="<<cnt[mask]<<endl;
	}
	ans[0]=1;
	for(int mask=1;mask<(1<<n);mask++)
	{
		int s=mask;
		vector<int> S;
		while(s>0)
		{
			S.PB(s);
			s=(s-1)&mask;
		}
 
		while(!S.empty())
		{
			s=S.back();
			S.pop_back();
 
			if(isEdge[s])
				continue;
 
			//cout<<"cnt["<<(mask^s)<<"]="<<cnt[mask^s]<<endl;
			//cout<<"!ns["<<(mask^s)<<"]="<<ans[mask^s]<<endl;
			if(cnt[s]%2==1)
				ans[mask]+=ans[mask^s];
			else
				ans[mask]+=mod-ans[mask^s];
			ans[mask]%=mod;
		}
		//cout<<"ans["<<mask<<"]="<<ans[mask]<<endl;
	}
 
	LL answ=ans[(1<<n)-1];
	answ*=(LL)m;
	answ%=mod;
	answ*=binpow(2,mod-2);
	answ%=mod;
 
	cout<<answ<<endl;
 
	return 0;
}
 
/*
 
3 1
1 2
 
 
 
*/

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:67:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int j=0;j<g[i].size();j++)
                ~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	380 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	380 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	6 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	5 ms	376 KB	Output is correct
17	Correct	5 ms	376 KB	Output is correct
18	Correct	5 ms	376 KB	Output is correct
19	Correct	5 ms	376 KB	Output is correct
20	Correct	5 ms	376 KB	Output is correct
21	Correct	5 ms	376 KB	Output is correct
22	Correct	5 ms	380 KB	Output is correct
23	Correct	5 ms	376 KB	Output is correct
24	Correct	5 ms	376 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	380 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	6 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	5 ms	376 KB	Output is correct
17	Correct	5 ms	376 KB	Output is correct
18	Correct	5 ms	376 KB	Output is correct
19	Correct	5 ms	376 KB	Output is correct
20	Correct	5 ms	376 KB	Output is correct
21	Correct	5 ms	376 KB	Output is correct
22	Correct	5 ms	380 KB	Output is correct
23	Correct	5 ms	376 KB	Output is correct
24	Correct	5 ms	376 KB	Output is correct
25	Correct	5 ms	376 KB	Output is correct
26	Correct	5 ms	376 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	5 ms	376 KB	Output is correct
29	Correct	5 ms	376 KB	Output is correct
30	Correct	5 ms	376 KB	Output is correct
31	Correct	5 ms	376 KB	Output is correct
32	Correct	5 ms	376 KB	Output is correct
33	Correct	5 ms	376 KB	Output is correct
34	Correct	5 ms	376 KB	Output is correct
35	Correct	5 ms	376 KB	Output is correct
36	Correct	5 ms	376 KB	Output is correct
37	Correct	5 ms	376 KB	Output is correct
38	Correct	5 ms	376 KB	Output is correct
39	Correct	5 ms	376 KB	Output is correct
40	Correct	5 ms	372 KB	Output is correct
41	Correct	5 ms	376 KB	Output is correct
42	Correct	5 ms	376 KB	Output is correct
43	Correct	5 ms	380 KB	Output is correct
44	Correct	5 ms	376 KB	Output is correct
45	Correct	5 ms	376 KB	Output is correct
46	Correct	5 ms	376 KB	Output is correct
47	Correct	5 ms	376 KB	Output is correct
48	Correct	5 ms	376 KB	Output is correct
49	Correct	5 ms	376 KB	Output is correct
50	Correct	5 ms	376 KB	Output is correct
51	Correct	6 ms	504 KB	Output is correct
52	Correct	6 ms	376 KB	Output is correct
53	Correct	6 ms	376 KB	Output is correct
54	Correct	6 ms	376 KB	Output is correct
55	Correct	7 ms	376 KB	Output is correct
56	Correct	5 ms	376 KB	Output is correct
57	Correct	6 ms	376 KB	Output is correct
58	Correct	5 ms	376 KB	Output is correct
59	Correct	6 ms	376 KB	Output is correct
60	Correct	6 ms	380 KB	Output is correct
61	Correct	6 ms	376 KB	Output is correct
62	Correct	5 ms	376 KB	Output is correct
63	Correct	6 ms	380 KB	Output is correct
64	Correct	6 ms	376 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	380 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	6 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	5 ms	376 KB	Output is correct
17	Correct	5 ms	376 KB	Output is correct
18	Correct	5 ms	376 KB	Output is correct
19	Correct	5 ms	376 KB	Output is correct
20	Correct	5 ms	376 KB	Output is correct
21	Correct	5 ms	376 KB	Output is correct
22	Correct	5 ms	380 KB	Output is correct
23	Correct	5 ms	376 KB	Output is correct
24	Correct	5 ms	376 KB	Output is correct
25	Correct	5 ms	376 KB	Output is correct
26	Correct	5 ms	376 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	5 ms	376 KB	Output is correct
29	Correct	5 ms	376 KB	Output is correct
30	Correct	5 ms	376 KB	Output is correct
31	Correct	5 ms	376 KB	Output is correct
32	Correct	5 ms	376 KB	Output is correct
33	Correct	5 ms	376 KB	Output is correct
34	Correct	5 ms	376 KB	Output is correct
35	Correct	5 ms	376 KB	Output is correct
36	Correct	5 ms	376 KB	Output is correct
37	Correct	5 ms	376 KB	Output is correct
38	Correct	5 ms	376 KB	Output is correct
39	Correct	5 ms	376 KB	Output is correct
40	Correct	5 ms	372 KB	Output is correct
41	Correct	5 ms	376 KB	Output is correct
42	Correct	5 ms	376 KB	Output is correct
43	Correct	5 ms	380 KB	Output is correct
44	Correct	5 ms	376 KB	Output is correct
45	Correct	5 ms	376 KB	Output is correct
46	Correct	5 ms	376 KB	Output is correct
47	Correct	5 ms	376 KB	Output is correct
48	Correct	5 ms	376 KB	Output is correct
49	Correct	5 ms	376 KB	Output is correct
50	Correct	5 ms	376 KB	Output is correct
51	Correct	6 ms	504 KB	Output is correct
52	Correct	6 ms	376 KB	Output is correct
53	Correct	6 ms	376 KB	Output is correct
54	Correct	6 ms	376 KB	Output is correct
55	Correct	7 ms	376 KB	Output is correct
56	Correct	5 ms	376 KB	Output is correct
57	Correct	6 ms	376 KB	Output is correct
58	Correct	5 ms	376 KB	Output is correct
59	Correct	6 ms	376 KB	Output is correct
60	Correct	6 ms	380 KB	Output is correct
61	Correct	6 ms	376 KB	Output is correct
62	Correct	5 ms	376 KB	Output is correct
63	Correct	6 ms	380 KB	Output is correct
64	Correct	6 ms	376 KB	Output is correct
65	Correct	44 ms	632 KB	Output is correct
66	Correct	48 ms	632 KB	Output is correct
67	Correct	42 ms	568 KB	Output is correct
68	Correct	41 ms	632 KB	Output is correct
69	Correct	58 ms	632 KB	Output is correct
70	Correct	50 ms	632 KB	Output is correct
71	Correct	50 ms	632 KB	Output is correct
72	Correct	52 ms	632 KB	Output is correct
73	Correct	46 ms	632 KB	Output is correct
74	Correct	45 ms	632 KB	Output is correct
75	Correct	47 ms	632 KB	Output is correct
76	Correct	48 ms	632 KB	Output is correct
77	Correct	120 ms	888 KB	Output is correct
78	Correct	114 ms	940 KB	Output is correct
79	Correct	109 ms	888 KB	Output is correct
80	Correct	105 ms	888 KB	Output is correct
81	Correct	104 ms	888 KB	Output is correct
82	Correct	104 ms	1016 KB	Output is correct
83	Correct	99 ms	888 KB	Output is correct
84	Correct	100 ms	888 KB	Output is correct
85	Correct	158 ms	888 KB	Output is correct
86	Correct	133 ms	1020 KB	Output is correct
87	Correct	132 ms	888 KB	Output is correct
88	Correct	138 ms	1028 KB	Output is correct
89	Correct	118 ms	848 KB	Output is correct
90	Correct	122 ms	892 KB	Output is correct
91	Correct	122 ms	888 KB	Output is correct
92	Correct	123 ms	888 KB	Output is correct

Subtask #5
0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	380 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	6 ms	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	5 ms	376 KB	Output is correct
17	Correct	5 ms	376 KB	Output is correct
18	Correct	5 ms	376 KB	Output is correct
19	Correct	5 ms	376 KB	Output is correct
20	Correct	5 ms	376 KB	Output is correct
21	Correct	5 ms	376 KB	Output is correct
22	Correct	5 ms	380 KB	Output is correct
23	Correct	5 ms	376 KB	Output is correct
24	Correct	5 ms	376 KB	Output is correct
25	Correct	5 ms	376 KB	Output is correct
26	Correct	5 ms	376 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	5 ms	376 KB	Output is correct
29	Correct	5 ms	376 KB	Output is correct
30	Correct	5 ms	376 KB	Output is correct
31	Correct	5 ms	376 KB	Output is correct
32	Correct	5 ms	376 KB	Output is correct
33	Correct	5 ms	376 KB	Output is correct
34	Correct	5 ms	376 KB	Output is correct
35	Correct	5 ms	376 KB	Output is correct
36	Correct	5 ms	376 KB	Output is correct
37	Correct	5 ms	376 KB	Output is correct
38	Correct	5 ms	376 KB	Output is correct
39	Correct	5 ms	376 KB	Output is correct
40	Correct	5 ms	372 KB	Output is correct
41	Correct	5 ms	376 KB	Output is correct
42	Correct	5 ms	376 KB	Output is correct
43	Correct	5 ms	380 KB	Output is correct
44	Correct	5 ms	376 KB	Output is correct
45	Correct	5 ms	376 KB	Output is correct
46	Correct	5 ms	376 KB	Output is correct
47	Correct	5 ms	376 KB	Output is correct
48	Correct	5 ms	376 KB	Output is correct
49	Correct	5 ms	376 KB	Output is correct
50	Correct	5 ms	376 KB	Output is correct
51	Correct	6 ms	504 KB	Output is correct
52	Correct	6 ms	376 KB	Output is correct
53	Correct	6 ms	376 KB	Output is correct
54	Correct	6 ms	376 KB	Output is correct
55	Correct	7 ms	376 KB	Output is correct
56	Correct	5 ms	376 KB	Output is correct
57	Correct	6 ms	376 KB	Output is correct
58	Correct	5 ms	376 KB	Output is correct
59	Correct	6 ms	376 KB	Output is correct
60	Correct	6 ms	380 KB	Output is correct
61	Correct	6 ms	376 KB	Output is correct
62	Correct	5 ms	376 KB	Output is correct
63	Correct	6 ms	380 KB	Output is correct
64	Correct	6 ms	376 KB	Output is correct
65	Correct	44 ms	632 KB	Output is correct
66	Correct	48 ms	632 KB	Output is correct
67	Correct	42 ms	568 KB	Output is correct
68	Correct	41 ms	632 KB	Output is correct
69	Correct	58 ms	632 KB	Output is correct
70	Correct	50 ms	632 KB	Output is correct
71	Correct	50 ms	632 KB	Output is correct
72	Correct	52 ms	632 KB	Output is correct
73	Correct	46 ms	632 KB	Output is correct
74	Correct	45 ms	632 KB	Output is correct
75	Correct	47 ms	632 KB	Output is correct
76	Correct	48 ms	632 KB	Output is correct
77	Correct	120 ms	888 KB	Output is correct
78	Correct	114 ms	940 KB	Output is correct
79	Correct	109 ms	888 KB	Output is correct
80	Correct	105 ms	888 KB	Output is correct
81	Correct	104 ms	888 KB	Output is correct
82	Correct	104 ms	1016 KB	Output is correct
83	Correct	99 ms	888 KB	Output is correct
84	Correct	100 ms	888 KB	Output is correct
85	Correct	158 ms	888 KB	Output is correct
86	Correct	133 ms	1020 KB	Output is correct
87	Correct	132 ms	888 KB	Output is correct
88	Correct	138 ms	1028 KB	Output is correct
89	Correct	118 ms	848 KB	Output is correct
90	Correct	122 ms	892 KB	Output is correct
91	Correct	122 ms	888 KB	Output is correct
92	Correct	123 ms	888 KB	Output is correct
93	Execution timed out	3055 ms	4284 KB	Time limit exceeded
94	Halted	0 ms	0 KB	-

답안 #199998

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 12.0 / 12.0

Subtask #3 23.0 / 23.0

Subtask #4 21.0 / 21.0

Subtask #5 0 / 37.0

Subtask #1
7.0 / 7.0

Subtask #2
12.0 / 12.0

Subtask #3
23.0 / 23.0

Subtask #4
21.0 / 21.0

Subtask #5
0 / 37.0