Submission #696400

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
696400	2023-02-06T12:00:30 Z	vjudge1	Amusement Park (CEOI19_amusementpark)	C++14	100 / 100	2476 ms	2576 KB

amusementpark

#include<bits/stdc++.h>
using namespace std;
const int mod=998244353,inv2=(mod+1)/2;
int qpow(int a,int b){
	int c=1;
	for(;b;b>>=1){
		if(b&1)c=1ll*a*c%mod;
		a=1ll*a*a%mod;
	}
	return c;
}
int n,m,f[1<<18];
bool a[19][19];
int b[1<<18];
int main(){
	scanf("%d%d",&n,&m);
	for(int u,v,i=0;i<m;i++)scanf("%d%d",&u,&v),u--,v--,a[u][v]=a[v][u]=1;
	f[0]=1;
	for(int s=1;s<(1<<n);s++){
		b[s]=1;
		for(int i=0;i<n;i++)if((s>>i)&1)for(int j=0;j<n;j++)if((s>>j)&1)
			b[s]&=!a[i][j];
		b[s]=-b[s];
		for(int i=0;i<n;i++)if((s>>i)&1)b[s]=-b[s];
		for(int j=s;j;j=(j-1)&s)if(b[j])
			(f[s]+=1ll*b[j]*f[j^s]%mod)%=mod;
	}
	return printf("%d",(1ll*f[(1<<n)-1]*m%mod*inv2%mod+mod)%mod),0;
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:28:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   28 |  return printf("%d",(1ll*f[(1<<n)-1]*m%mod*inv2%mod+mod)%mod),0;
      |                 ~^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                  |                                      |
      |                  int                                    long long int
      |                 %lld
amusementpark.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |  scanf("%d%d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~
amusementpark.cpp:17:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |  for(int u,v,i=0;i<m;i++)scanf("%d%d",&u,&v),u--,v--,a[u][v]=a[v][u]=1;
      |                          ~~~~~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	308 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	308 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	316 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	308 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	312 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	308 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	316 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	308 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	312 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	1 ms	324 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	1 ms	308 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	316 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	1 ms	316 KB	Output is correct
34	Correct	0 ms	312 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	1 ms	340 KB	Output is correct
37	Correct	1 ms	312 KB	Output is correct
38	Correct	1 ms	308 KB	Output is correct
39	Correct	1 ms	312 KB	Output is correct
40	Correct	1 ms	212 KB	Output is correct
41	Correct	1 ms	212 KB	Output is correct
42	Correct	1 ms	212 KB	Output is correct
43	Correct	1 ms	212 KB	Output is correct
44	Correct	1 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	1 ms	308 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	1 ms	312 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	1 ms	312 KB	Output is correct
53	Correct	1 ms	308 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	1 ms	316 KB	Output is correct
56	Correct	1 ms	212 KB	Output is correct
57	Correct	1 ms	316 KB	Output is correct
58	Correct	1 ms	212 KB	Output is correct
59	Correct	1 ms	212 KB	Output is correct
60	Correct	1 ms	212 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	212 KB	Output is correct
63	Correct	1 ms	212 KB	Output is correct
64	Correct	1 ms	212 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	308 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	316 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	308 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	312 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	1 ms	324 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	1 ms	308 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	316 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	1 ms	316 KB	Output is correct
34	Correct	0 ms	312 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	1 ms	340 KB	Output is correct
37	Correct	1 ms	312 KB	Output is correct
38	Correct	1 ms	308 KB	Output is correct
39	Correct	1 ms	312 KB	Output is correct
40	Correct	1 ms	212 KB	Output is correct
41	Correct	1 ms	212 KB	Output is correct
42	Correct	1 ms	212 KB	Output is correct
43	Correct	1 ms	212 KB	Output is correct
44	Correct	1 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	1 ms	308 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	1 ms	312 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	1 ms	312 KB	Output is correct
53	Correct	1 ms	308 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	1 ms	316 KB	Output is correct
56	Correct	1 ms	212 KB	Output is correct
57	Correct	1 ms	316 KB	Output is correct
58	Correct	1 ms	212 KB	Output is correct
59	Correct	1 ms	212 KB	Output is correct
60	Correct	1 ms	212 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	212 KB	Output is correct
63	Correct	1 ms	212 KB	Output is correct
64	Correct	1 ms	212 KB	Output is correct
65	Correct	14 ms	340 KB	Output is correct
66	Correct	14 ms	340 KB	Output is correct
67	Correct	13 ms	340 KB	Output is correct
68	Correct	13 ms	360 KB	Output is correct
69	Correct	26 ms	340 KB	Output is correct
70	Correct	19 ms	332 KB	Output is correct
71	Correct	20 ms	308 KB	Output is correct
72	Correct	21 ms	340 KB	Output is correct
73	Correct	16 ms	452 KB	Output is correct
74	Correct	16 ms	436 KB	Output is correct
75	Correct	18 ms	340 KB	Output is correct
76	Correct	18 ms	372 KB	Output is correct
77	Correct	42 ms	548 KB	Output is correct
78	Correct	38 ms	548 KB	Output is correct
79	Correct	37 ms	476 KB	Output is correct
80	Correct	38 ms	460 KB	Output is correct
81	Correct	34 ms	568 KB	Output is correct
82	Correct	32 ms	472 KB	Output is correct
83	Correct	30 ms	492 KB	Output is correct
84	Correct	31 ms	528 KB	Output is correct
85	Correct	70 ms	460 KB	Output is correct
86	Correct	54 ms	512 KB	Output is correct
87	Correct	57 ms	532 KB	Output is correct
88	Correct	59 ms	544 KB	Output is correct
89	Correct	41 ms	532 KB	Output is correct
90	Correct	45 ms	460 KB	Output is correct
91	Correct	47 ms	444 KB	Output is correct
92	Correct	47 ms	440 KB	Output is correct

Subtask #5
37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	308 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	316 KB	Output is correct
10	Correct	0 ms	308 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	308 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	312 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	1 ms	324 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	1 ms	308 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	316 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	1 ms	316 KB	Output is correct
34	Correct	0 ms	312 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	1 ms	340 KB	Output is correct
37	Correct	1 ms	312 KB	Output is correct
38	Correct	1 ms	308 KB	Output is correct
39	Correct	1 ms	312 KB	Output is correct
40	Correct	1 ms	212 KB	Output is correct
41	Correct	1 ms	212 KB	Output is correct
42	Correct	1 ms	212 KB	Output is correct
43	Correct	1 ms	212 KB	Output is correct
44	Correct	1 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	1 ms	308 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	1 ms	312 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	1 ms	312 KB	Output is correct
53	Correct	1 ms	308 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	1 ms	316 KB	Output is correct
56	Correct	1 ms	212 KB	Output is correct
57	Correct	1 ms	316 KB	Output is correct
58	Correct	1 ms	212 KB	Output is correct
59	Correct	1 ms	212 KB	Output is correct
60	Correct	1 ms	212 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	212 KB	Output is correct
63	Correct	1 ms	212 KB	Output is correct
64	Correct	1 ms	212 KB	Output is correct
65	Correct	14 ms	340 KB	Output is correct
66	Correct	14 ms	340 KB	Output is correct
67	Correct	13 ms	340 KB	Output is correct
68	Correct	13 ms	360 KB	Output is correct
69	Correct	26 ms	340 KB	Output is correct
70	Correct	19 ms	332 KB	Output is correct
71	Correct	20 ms	308 KB	Output is correct
72	Correct	21 ms	340 KB	Output is correct
73	Correct	16 ms	452 KB	Output is correct
74	Correct	16 ms	436 KB	Output is correct
75	Correct	18 ms	340 KB	Output is correct
76	Correct	18 ms	372 KB	Output is correct
77	Correct	42 ms	548 KB	Output is correct
78	Correct	38 ms	548 KB	Output is correct
79	Correct	37 ms	476 KB	Output is correct
80	Correct	38 ms	460 KB	Output is correct
81	Correct	34 ms	568 KB	Output is correct
82	Correct	32 ms	472 KB	Output is correct
83	Correct	30 ms	492 KB	Output is correct
84	Correct	31 ms	528 KB	Output is correct
85	Correct	70 ms	460 KB	Output is correct
86	Correct	54 ms	512 KB	Output is correct
87	Correct	57 ms	532 KB	Output is correct
88	Correct	59 ms	544 KB	Output is correct
89	Correct	41 ms	532 KB	Output is correct
90	Correct	45 ms	460 KB	Output is correct
91	Correct	47 ms	444 KB	Output is correct
92	Correct	47 ms	440 KB	Output is correct
93	Correct	1183 ms	2324 KB	Output is correct
94	Correct	1173 ms	2308 KB	Output is correct
95	Correct	1177 ms	2352 KB	Output is correct
96	Correct	886 ms	2412 KB	Output is correct
97	Correct	843 ms	2332 KB	Output is correct
98	Correct	951 ms	2332 KB	Output is correct
99	Correct	118 ms	764 KB	Output is correct
100	Correct	99 ms	704 KB	Output is correct
101	Correct	99 ms	800 KB	Output is correct
102	Correct	90 ms	760 KB	Output is correct
103	Correct	838 ms	1444 KB	Output is correct
104	Correct	462 ms	1288 KB	Output is correct
105	Correct	371 ms	1236 KB	Output is correct
106	Correct	279 ms	1304 KB	Output is correct
107	Correct	2476 ms	2332 KB	Output is correct
108	Correct	1016 ms	2360 KB	Output is correct
109	Correct	743 ms	2544 KB	Output is correct
110	Correct	653 ms	2340 KB	Output is correct
111	Correct	84 ms	716 KB	Output is correct
112	Correct	82 ms	800 KB	Output is correct
113	Correct	83 ms	796 KB	Output is correct
114	Correct	195 ms	796 KB	Output is correct
115	Correct	145 ms	816 KB	Output is correct
116	Correct	165 ms	780 KB	Output is correct
117	Correct	172 ms	752 KB	Output is correct
118	Correct	110 ms	804 KB	Output is correct
119	Correct	115 ms	844 KB	Output is correct
120	Correct	128 ms	716 KB	Output is correct
121	Correct	134 ms	772 KB	Output is correct
122	Correct	254 ms	1320 KB	Output is correct
123	Correct	226 ms	1356 KB	Output is correct
124	Correct	214 ms	1276 KB	Output is correct
125	Correct	214 ms	1428 KB	Output is correct
126	Correct	216 ms	1224 KB	Output is correct
127	Correct	194 ms	1244 KB	Output is correct
128	Correct	189 ms	1368 KB	Output is correct
129	Correct	185 ms	1220 KB	Output is correct
130	Correct	183 ms	1320 KB	Output is correct
131	Correct	579 ms	1252 KB	Output is correct
132	Correct	400 ms	1316 KB	Output is correct
133	Correct	435 ms	1316 KB	Output is correct
134	Correct	463 ms	1440 KB	Output is correct
135	Correct	311 ms	1312 KB	Output is correct
136	Correct	320 ms	1336 KB	Output is correct
137	Correct	346 ms	1308 KB	Output is correct
138	Correct	365 ms	1228 KB	Output is correct
139	Correct	264 ms	1212 KB	Output is correct
140	Correct	304 ms	1280 KB	Output is correct
141	Correct	305 ms	1292 KB	Output is correct
142	Correct	584 ms	2332 KB	Output is correct
143	Correct	584 ms	2300 KB	Output is correct
144	Correct	536 ms	2512 KB	Output is correct
145	Correct	509 ms	2308 KB	Output is correct
146	Correct	501 ms	2380 KB	Output is correct
147	Correct	488 ms	2292 KB	Output is correct
148	Correct	595 ms	2380 KB	Output is correct
149	Correct	582 ms	2256 KB	Output is correct
150	Correct	576 ms	2252 KB	Output is correct
151	Correct	726 ms	2360 KB	Output is correct
152	Correct	712 ms	2252 KB	Output is correct
153	Correct	863 ms	2528 KB	Output is correct
154	Correct	895 ms	2412 KB	Output is correct
155	Correct	995 ms	2252 KB	Output is correct
156	Correct	1042 ms	2308 KB	Output is correct
157	Correct	926 ms	2420 KB	Output is correct
158	Correct	1002 ms	2432 KB	Output is correct
159	Correct	741 ms	2232 KB	Output is correct
160	Correct	777 ms	2224 KB	Output is correct
161	Correct	855 ms	2384 KB	Output is correct
162	Correct	674 ms	2372 KB	Output is correct
163	Correct	701 ms	2576 KB	Output is correct
164	Correct	654 ms	2344 KB	Output is correct
165	Correct	673 ms	2348 KB	Output is correct
166	Correct	699 ms	2420 KB	Output is correct
167	Correct	723 ms	2296 KB	Output is correct

Submission #696400

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