Submission #908765

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
908765	2024-01-16T19:37:15 Z	amirhoseinfar1385	Amusement Park (CEOI19_amusementpark)	C++17	100 / 100	1439 ms	269200 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)],mar;
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[maxn+2];
int adj[maxn],adja[maxn];
int n,m;

void aval(){
	mar=(1<<n)-1;
	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;
		tartib[__builtin_popcount(i)].push_back(i);
	}
}

void solve(){
	for(int i=0;i<maxn+2;i++){
		for(auto xx:tartib[i]){
			for(int y=(mar^xx);y>0;y=(y-1)&(mar^xx)){
			int x=back3(xx,y);
			if(pd[x]==0){
				continue;
			}
			pair<int,int>now=make_pair(xx,y);
			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();	
	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";
}

Compilation message

amusementpark.cpp: In function 'void aval()':
amusementpark.cpp:53:6: warning: unused variable 'nx' [-Wunused-variable]
   53 |  int nx=1;
      |      ^~

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 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	2640 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	2396 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	2640 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	2396 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	2392 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	2392 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 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	2640 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	2396 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	2392 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	2392 KB	Output is correct
25	Correct	1 ms	2396 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	2392 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	2392 KB	Output is correct
35	Correct	1 ms	2392 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2396 KB	Output is correct
38	Correct	1 ms	2648 KB	Output is correct
39	Correct	1 ms	2392 KB	Output is correct
40	Correct	1 ms	2392 KB	Output is correct
41	Correct	1 ms	2396 KB	Output is correct
42	Correct	1 ms	2392 KB	Output is correct
43	Correct	1 ms	2392 KB	Output is correct
44	Correct	1 ms	2392 KB	Output is correct
45	Correct	1 ms	2396 KB	Output is correct
46	Correct	1 ms	2396 KB	Output is correct
47	Correct	1 ms	2392 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2396 KB	Output is correct
51	Correct	1 ms	2396 KB	Output is correct
52	Correct	1 ms	2396 KB	Output is correct
53	Correct	1 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2392 KB	Output is correct
59	Correct	1 ms	2396 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2392 KB	Output is correct
62	Correct	1 ms	2396 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 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	2640 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	2396 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	2392 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	2392 KB	Output is correct
25	Correct	1 ms	2396 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	2392 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	2392 KB	Output is correct
35	Correct	1 ms	2392 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2396 KB	Output is correct
38	Correct	1 ms	2648 KB	Output is correct
39	Correct	1 ms	2392 KB	Output is correct
40	Correct	1 ms	2392 KB	Output is correct
41	Correct	1 ms	2396 KB	Output is correct
42	Correct	1 ms	2392 KB	Output is correct
43	Correct	1 ms	2392 KB	Output is correct
44	Correct	1 ms	2392 KB	Output is correct
45	Correct	1 ms	2396 KB	Output is correct
46	Correct	1 ms	2396 KB	Output is correct
47	Correct	1 ms	2392 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2396 KB	Output is correct
51	Correct	1 ms	2396 KB	Output is correct
52	Correct	1 ms	2396 KB	Output is correct
53	Correct	1 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2392 KB	Output is correct
59	Correct	1 ms	2396 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2392 KB	Output is correct
62	Correct	1 ms	2396 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct
65	Correct	13 ms	5980 KB	Output is correct
66	Correct	18 ms	6728 KB	Output is correct
67	Correct	17 ms	5724 KB	Output is correct
68	Correct	15 ms	5724 KB	Output is correct
69	Correct	10 ms	4956 KB	Output is correct
70	Correct	10 ms	4956 KB	Output is correct
71	Correct	10 ms	4696 KB	Output is correct
72	Correct	10 ms	4444 KB	Output is correct
73	Correct	11 ms	4956 KB	Output is correct
74	Correct	10 ms	4700 KB	Output is correct
75	Correct	10 ms	4440 KB	Output is correct
76	Correct	10 ms	4360 KB	Output is correct
77	Correct	42 ms	16212 KB	Output is correct
78	Correct	43 ms	14420 KB	Output is correct
79	Correct	62 ms	14420 KB	Output is correct
80	Correct	45 ms	11860 KB	Output is correct
81	Correct	42 ms	12124 KB	Output is correct
82	Correct	42 ms	11612 KB	Output is correct
83	Correct	39 ms	9040 KB	Output is correct
84	Correct	35 ms	8244 KB	Output is correct
85	Correct	26 ms	8540 KB	Output is correct
86	Correct	27 ms	8584 KB	Output is correct
87	Correct	29 ms	8096 KB	Output is correct
88	Correct	25 ms	7260 KB	Output is correct
89	Correct	26 ms	8528 KB	Output is correct
90	Correct	27 ms	8028 KB	Output is correct
91	Correct	31 ms	7764 KB	Output is correct
92	Correct	30 ms	7156 KB	Output is correct

Subtask #5
37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 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	2640 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	2396 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	2392 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	2392 KB	Output is correct
25	Correct	1 ms	2396 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	2392 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	2392 KB	Output is correct
35	Correct	1 ms	2392 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2396 KB	Output is correct
38	Correct	1 ms	2648 KB	Output is correct
39	Correct	1 ms	2392 KB	Output is correct
40	Correct	1 ms	2392 KB	Output is correct
41	Correct	1 ms	2396 KB	Output is correct
42	Correct	1 ms	2392 KB	Output is correct
43	Correct	1 ms	2392 KB	Output is correct
44	Correct	1 ms	2392 KB	Output is correct
45	Correct	1 ms	2396 KB	Output is correct
46	Correct	1 ms	2396 KB	Output is correct
47	Correct	1 ms	2392 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2396 KB	Output is correct
51	Correct	1 ms	2396 KB	Output is correct
52	Correct	1 ms	2396 KB	Output is correct
53	Correct	1 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2392 KB	Output is correct
59	Correct	1 ms	2396 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2392 KB	Output is correct
62	Correct	1 ms	2396 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct
65	Correct	13 ms	5980 KB	Output is correct
66	Correct	18 ms	6728 KB	Output is correct
67	Correct	17 ms	5724 KB	Output is correct
68	Correct	15 ms	5724 KB	Output is correct
69	Correct	10 ms	4956 KB	Output is correct
70	Correct	10 ms	4956 KB	Output is correct
71	Correct	10 ms	4696 KB	Output is correct
72	Correct	10 ms	4444 KB	Output is correct
73	Correct	11 ms	4956 KB	Output is correct
74	Correct	10 ms	4700 KB	Output is correct
75	Correct	10 ms	4440 KB	Output is correct
76	Correct	10 ms	4360 KB	Output is correct
77	Correct	42 ms	16212 KB	Output is correct
78	Correct	43 ms	14420 KB	Output is correct
79	Correct	62 ms	14420 KB	Output is correct
80	Correct	45 ms	11860 KB	Output is correct
81	Correct	42 ms	12124 KB	Output is correct
82	Correct	42 ms	11612 KB	Output is correct
83	Correct	39 ms	9040 KB	Output is correct
84	Correct	35 ms	8244 KB	Output is correct
85	Correct	26 ms	8540 KB	Output is correct
86	Correct	27 ms	8584 KB	Output is correct
87	Correct	29 ms	8096 KB	Output is correct
88	Correct	25 ms	7260 KB	Output is correct
89	Correct	26 ms	8528 KB	Output is correct
90	Correct	27 ms	8028 KB	Output is correct
91	Correct	31 ms	7764 KB	Output is correct
92	Correct	30 ms	7156 KB	Output is correct
93	Correct	790 ms	70856 KB	Output is correct
94	Correct	647 ms	33504 KB	Output is correct
95	Correct	662 ms	25800 KB	Output is correct
96	Correct	792 ms	70532 KB	Output is correct
97	Correct	777 ms	70704 KB	Output is correct
98	Correct	787 ms	71028 KB	Output is correct
99	Correct	126 ms	35856 KB	Output is correct
100	Correct	141 ms	34192 KB	Output is correct
101	Correct	155 ms	36968 KB	Output is correct
102	Correct	158 ms	35408 KB	Output is correct
103	Correct	208 ms	14672 KB	Output is correct
104	Correct	187 ms	14928 KB	Output is correct
105	Correct	299 ms	44732 KB	Output is correct
106	Correct	386 ms	68688 KB	Output is correct
107	Correct	658 ms	24080 KB	Output is correct
108	Correct	777 ms	73076 KB	Output is correct
109	Correct	1056 ms	161752 KB	Output is correct
110	Correct	1439 ms	269200 KB	Output is correct
111	Correct	184 ms	37492 KB	Output is correct
112	Correct	114 ms	21084 KB	Output is correct
113	Correct	138 ms	24688 KB	Output is correct
114	Correct	80 ms	18772 KB	Output is correct
115	Correct	85 ms	18696 KB	Output is correct
116	Correct	99 ms	17736 KB	Output is correct
117	Correct	74 ms	14912 KB	Output is correct
118	Correct	89 ms	19024 KB	Output is correct
119	Correct	97 ms	17680 KB	Output is correct
120	Correct	85 ms	16520 KB	Output is correct
121	Correct	75 ms	14928 KB	Output is correct
122	Correct	401 ms	76624 KB	Output is correct
123	Correct	499 ms	87340 KB	Output is correct
124	Correct	438 ms	68432 KB	Output is correct
125	Correct	408 ms	62552 KB	Output is correct
126	Correct	396 ms	53688 KB	Output is correct
127	Correct	319 ms	37204 KB	Output is correct
128	Correct	280 ms	29180 KB	Output is correct
129	Correct	233 ms	21540 KB	Output is correct
130	Correct	221 ms	14716 KB	Output is correct
131	Correct	257 ms	35752 KB	Output is correct
132	Correct	266 ms	35660 KB	Output is correct
133	Correct	264 ms	33560 KB	Output is correct
134	Correct	257 ms	27436 KB	Output is correct
135	Correct	275 ms	35796 KB	Output is correct
136	Correct	271 ms	33400 KB	Output is correct
137	Correct	286 ms	31316 KB	Output is correct
138	Correct	271 ms	27688 KB	Output is correct
139	Correct	285 ms	35664 KB	Output is correct
140	Correct	279 ms	30768 KB	Output is correct
141	Correct	271 ms	26576 KB	Output is correct
142	Correct	1256 ms	172220 KB	Output is correct
143	Correct	1267 ms	144904 KB	Output is correct
144	Correct	1082 ms	95764 KB	Output is correct
145	Correct	969 ms	76304 KB	Output is correct
146	Correct	853 ms	55236 KB	Output is correct
147	Correct	732 ms	23644 KB	Output is correct
148	Correct	1227 ms	172360 KB	Output is correct
149	Correct	1156 ms	123492 KB	Output is correct
150	Correct	1262 ms	179632 KB	Output is correct
151	Correct	754 ms	55012 KB	Output is correct
152	Correct	751 ms	59000 KB	Output is correct
153	Correct	763 ms	70672 KB	Output is correct
154	Correct	782 ms	70568 KB	Output is correct
155	Correct	788 ms	60768 KB	Output is correct
156	Correct	756 ms	53900 KB	Output is correct
157	Correct	793 ms	66548 KB	Output is correct
158	Correct	819 ms	62376 KB	Output is correct
159	Correct	794 ms	70572 KB	Output is correct
160	Correct	810 ms	62152 KB	Output is correct
161	Correct	811 ms	51860 KB	Output is correct
162	Correct	805 ms	70560 KB	Output is correct
163	Correct	830 ms	66500 KB	Output is correct
164	Correct	772 ms	62372 KB	Output is correct
165	Correct	756 ms	58052 KB	Output is correct
166	Correct	769 ms	53760 KB	Output is correct
167	Correct	758 ms	48712 KB	Output is correct

Submission #908765

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 37.0 / 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
37.0 / 37.0