Submission #908733

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
908733	2024-01-16T17:49:08 Z	amirhoseinfar1385	Amusement Park (CEOI19_amusementpark)	C++17	63 / 100	3000 ms	453188 KB

amusementpark

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#include<bits/stdc++.h>
using namespace std;
const int maxn=18,maxm=387420489,mod=998244353;
int pd[maxm],t[(1<<maxn)];
long long mypow(long long m,long long y){
    if(y==0){
        return 1;
    }
    long long p=mypow(m,(y>>1));
    p*=p;
    p%=mod;
    if(y&1){
        p*=m;
        p%=mod;
    }
    return p;
}

int ww(int a){
	if(a>=mod){
		a-=mod;
	}
	return a;
}

pair<int,int>tab2(int a){
	int now=0;
	pair<int,int>ret=make_pair(0,0);
	while(a!=0){
		if(a%3==1){
			ret.first+=(1<<now);
		}else if(a%3==2){
			ret.second+=(1<<now);
		}
		now++;
		a/=3;
	}
	return ret;
}

int back3(int a,int b){
	int ret=t[a]+2*t[b];
	return ret;
}
vector<int>tartib[18];
int adj[maxn],adja[maxn];
int n,m;

void aval(){
	int nx=1;
	for(int i=0;i<(1<<n);i++){
		int now=1,ret=0;
		for(int j=0;j<n;j++){
			if((i>>j)&1){
				ret+=now;
			}
			now*=3;
		}
		t[i]=ret;
	}
	for(int i=1;i<=n;i++){
		nx*=3;
	}
	for(int i=0;i<nx;i++){
		pair<int,int>fake=tab2(i);
		tartib[__builtin_popcount(fake.first)].push_back(i);
	}
}

void solve(){
	for(int i=0;i<maxn;i++){
		for(auto x:tartib[i]){
			if(pd[x]==0){
				continue;
			}
			pair<int,int>now=tab2(x);
			for(int j=0;j<n;j++){
				if((now.second>>j)&1){
					now.second^=(1<<j);
					pair<int,int>fake=now;
					fake.first|=(1<<j);
					fake.second|=(adj[j]^(adj[j]&now.first));
					int tof=back3(fake.first,fake.second);
					pd[tof]+=pd[x];
					pd[tof]=ww(pd[tof]);
				}
			}
		}
	}
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m;
	aval();	
	if(n>15){
		return 0;
	}
	for(int i=0;i<m;i++){
		int u,v;
		cin>>u>>v;
		u--;
		v--;
		adj[u]|=(1<<v);
		adj[v]|=(1<<u);
		adja[u]|=(1<<v);
	}
	pd[back3(0,(1<<n)-1)]=1;
	solve();
	int res=back3((1<<n)-1,0);
	pd[res]=1ll*pd[res]*m%mod;
	pd[res]=1ll*pd[res]*mypow(2,mod-2)%mod;
	cout<<pd[res]<<"\n";
}

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2396 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2596 KB	Output is correct
36	Correct	1 ms	2392 KB	Output is correct
37	Correct	1 ms	2392 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2652 KB	Output is correct
40	Correct	1 ms	2652 KB	Output is correct
41	Correct	1 ms	2652 KB	Output is correct
42	Correct	2 ms	2652 KB	Output is correct
43	Correct	1 ms	2648 KB	Output is correct
44	Correct	1 ms	2648 KB	Output is correct
45	Correct	1 ms	2652 KB	Output is correct
46	Correct	1 ms	2652 KB	Output is correct
47	Correct	1 ms	2648 KB	Output is correct
48	Correct	2 ms	2904 KB	Output is correct
49	Correct	1 ms	2648 KB	Output is correct
50	Correct	1 ms	2904 KB	Output is correct
51	Correct	1 ms	2652 KB	Output is correct
52	Correct	2 ms	2652 KB	Output is correct
53	Correct	2 ms	2652 KB	Output is correct
54	Correct	2 ms	2652 KB	Output is correct
55	Correct	2 ms	2652 KB	Output is correct
56	Correct	3 ms	2652 KB	Output is correct
57	Correct	3 ms	2652 KB	Output is correct
58	Correct	2 ms	2652 KB	Output is correct
59	Correct	2 ms	2652 KB	Output is correct
60	Correct	2 ms	2652 KB	Output is correct
61	Correct	2 ms	2652 KB	Output is correct
62	Correct	2 ms	2652 KB	Output is correct
63	Correct	2 ms	2652 KB	Output is correct
64	Correct	3 ms	2652 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2396 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2596 KB	Output is correct
36	Correct	1 ms	2392 KB	Output is correct
37	Correct	1 ms	2392 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2652 KB	Output is correct
40	Correct	1 ms	2652 KB	Output is correct
41	Correct	1 ms	2652 KB	Output is correct
42	Correct	2 ms	2652 KB	Output is correct
43	Correct	1 ms	2648 KB	Output is correct
44	Correct	1 ms	2648 KB	Output is correct
45	Correct	1 ms	2652 KB	Output is correct
46	Correct	1 ms	2652 KB	Output is correct
47	Correct	1 ms	2648 KB	Output is correct
48	Correct	2 ms	2904 KB	Output is correct
49	Correct	1 ms	2648 KB	Output is correct
50	Correct	1 ms	2904 KB	Output is correct
51	Correct	1 ms	2652 KB	Output is correct
52	Correct	2 ms	2652 KB	Output is correct
53	Correct	2 ms	2652 KB	Output is correct
54	Correct	2 ms	2652 KB	Output is correct
55	Correct	2 ms	2652 KB	Output is correct
56	Correct	3 ms	2652 KB	Output is correct
57	Correct	3 ms	2652 KB	Output is correct
58	Correct	2 ms	2652 KB	Output is correct
59	Correct	2 ms	2652 KB	Output is correct
60	Correct	2 ms	2652 KB	Output is correct
61	Correct	2 ms	2652 KB	Output is correct
62	Correct	2 ms	2652 KB	Output is correct
63	Correct	2 ms	2652 KB	Output is correct
64	Correct	3 ms	2652 KB	Output is correct
65	Correct	152 ms	28372 KB	Output is correct
66	Correct	159 ms	27488 KB	Output is correct
67	Correct	154 ms	26652 KB	Output is correct
68	Correct	161 ms	26732 KB	Output is correct
69	Correct	147 ms	25992 KB	Output is correct
70	Correct	150 ms	28008 KB	Output is correct
71	Correct	145 ms	25576 KB	Output is correct
72	Correct	148 ms	26352 KB	Output is correct
73	Correct	146 ms	27252 KB	Output is correct
74	Correct	150 ms	25828 KB	Output is correct
75	Correct	157 ms	26876 KB	Output is correct
76	Correct	153 ms	26168 KB	Output is correct
77	Correct	491 ms	81888 KB	Output is correct
78	Correct	488 ms	80076 KB	Output is correct
79	Correct	499 ms	79796 KB	Output is correct
80	Correct	481 ms	76976 KB	Output is correct
81	Correct	501 ms	77736 KB	Output is correct
82	Correct	505 ms	77204 KB	Output is correct
83	Correct	478 ms	74704 KB	Output is correct
84	Correct	482 ms	73292 KB	Output is correct
85	Correct	457 ms	77176 KB	Output is correct
86	Correct	471 ms	74616 KB	Output is correct
87	Correct	462 ms	75092 KB	Output is correct
88	Correct	464 ms	72644 KB	Output is correct
89	Correct	467 ms	73208 KB	Output is correct
90	Correct	466 ms	76708 KB	Output is correct
91	Correct	454 ms	73648 KB	Output is correct
92	Correct	469 ms	72728 KB	Output is correct

Subtask #5
0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2392 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2396 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2396 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2596 KB	Output is correct
36	Correct	1 ms	2392 KB	Output is correct
37	Correct	1 ms	2392 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2652 KB	Output is correct
40	Correct	1 ms	2652 KB	Output is correct
41	Correct	1 ms	2652 KB	Output is correct
42	Correct	2 ms	2652 KB	Output is correct
43	Correct	1 ms	2648 KB	Output is correct
44	Correct	1 ms	2648 KB	Output is correct
45	Correct	1 ms	2652 KB	Output is correct
46	Correct	1 ms	2652 KB	Output is correct
47	Correct	1 ms	2648 KB	Output is correct
48	Correct	2 ms	2904 KB	Output is correct
49	Correct	1 ms	2648 KB	Output is correct
50	Correct	1 ms	2904 KB	Output is correct
51	Correct	1 ms	2652 KB	Output is correct
52	Correct	2 ms	2652 KB	Output is correct
53	Correct	2 ms	2652 KB	Output is correct
54	Correct	2 ms	2652 KB	Output is correct
55	Correct	2 ms	2652 KB	Output is correct
56	Correct	3 ms	2652 KB	Output is correct
57	Correct	3 ms	2652 KB	Output is correct
58	Correct	2 ms	2652 KB	Output is correct
59	Correct	2 ms	2652 KB	Output is correct
60	Correct	2 ms	2652 KB	Output is correct
61	Correct	2 ms	2652 KB	Output is correct
62	Correct	2 ms	2652 KB	Output is correct
63	Correct	2 ms	2652 KB	Output is correct
64	Correct	3 ms	2652 KB	Output is correct
65	Correct	152 ms	28372 KB	Output is correct
66	Correct	159 ms	27488 KB	Output is correct
67	Correct	154 ms	26652 KB	Output is correct
68	Correct	161 ms	26732 KB	Output is correct
69	Correct	147 ms	25992 KB	Output is correct
70	Correct	150 ms	28008 KB	Output is correct
71	Correct	145 ms	25576 KB	Output is correct
72	Correct	148 ms	26352 KB	Output is correct
73	Correct	146 ms	27252 KB	Output is correct
74	Correct	150 ms	25828 KB	Output is correct
75	Correct	157 ms	26876 KB	Output is correct
76	Correct	153 ms	26168 KB	Output is correct
77	Correct	491 ms	81888 KB	Output is correct
78	Correct	488 ms	80076 KB	Output is correct
79	Correct	499 ms	79796 KB	Output is correct
80	Correct	481 ms	76976 KB	Output is correct
81	Correct	501 ms	77736 KB	Output is correct
82	Correct	505 ms	77204 KB	Output is correct
83	Correct	478 ms	74704 KB	Output is correct
84	Correct	482 ms	73292 KB	Output is correct
85	Correct	457 ms	77176 KB	Output is correct
86	Correct	471 ms	74616 KB	Output is correct
87	Correct	462 ms	75092 KB	Output is correct
88	Correct	464 ms	72644 KB	Output is correct
89	Correct	467 ms	73208 KB	Output is correct
90	Correct	466 ms	76708 KB	Output is correct
91	Correct	454 ms	73648 KB	Output is correct
92	Correct	469 ms	72728 KB	Output is correct
93	Execution timed out	3007 ms	453188 KB	Time limit exceeded
94	Halted	0 ms	0 KB	-

Submission #908733

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