Submission #697267

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
697267	2023-02-09T02:13:20 Z	vjudge1	Amusement Park (CEOI19_amusementpark)	C++14	100 / 100	2572 ms	2572 KB

amusementpark

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

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:9:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  scanf("%d%d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~
amusementpark.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   scanf("%d%d",&u,&v);
      |   ~~~~~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	312 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	312 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	304 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	312 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	304 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	312 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	304 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	312 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	304 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	280 KB	Output is correct
26	Correct	1 ms	308 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	308 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	1 ms	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	1 ms	312 KB	Output is correct
36	Correct	1 ms	304 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	1 ms	212 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	308 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	0 ms	244 KB	Output is correct
47	Correct	1 ms	308 KB	Output is correct
48	Correct	1 ms	308 KB	Output is correct
49	Correct	0 ms	224 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	1 ms	212 KB	Output is correct
53	Correct	1 ms	212 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	1 ms	212 KB	Output is correct
56	Correct	1 ms	304 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	1 ms	304 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	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	312 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	304 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	312 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	304 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	280 KB	Output is correct
26	Correct	1 ms	308 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	308 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	1 ms	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	1 ms	312 KB	Output is correct
36	Correct	1 ms	304 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	1 ms	212 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	308 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	0 ms	244 KB	Output is correct
47	Correct	1 ms	308 KB	Output is correct
48	Correct	1 ms	308 KB	Output is correct
49	Correct	0 ms	224 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	1 ms	212 KB	Output is correct
53	Correct	1 ms	212 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	1 ms	212 KB	Output is correct
56	Correct	1 ms	304 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	1 ms	304 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	10 ms	340 KB	Output is correct
66	Correct	10 ms	436 KB	Output is correct
67	Correct	9 ms	340 KB	Output is correct
68	Correct	8 ms	340 KB	Output is correct
69	Correct	23 ms	392 KB	Output is correct
70	Correct	15 ms	340 KB	Output is correct
71	Correct	17 ms	360 KB	Output is correct
72	Correct	20 ms	420 KB	Output is correct
73	Correct	13 ms	408 KB	Output is correct
74	Correct	14 ms	416 KB	Output is correct
75	Correct	15 ms	340 KB	Output is correct
76	Correct	16 ms	396 KB	Output is correct
77	Correct	29 ms	524 KB	Output is correct
78	Correct	28 ms	468 KB	Output is correct
79	Correct	27 ms	540 KB	Output is correct
80	Correct	25 ms	528 KB	Output is correct
81	Correct	24 ms	472 KB	Output is correct
82	Correct	22 ms	540 KB	Output is correct
83	Correct	21 ms	468 KB	Output is correct
84	Correct	20 ms	468 KB	Output is correct
85	Correct	67 ms	544 KB	Output is correct
86	Correct	49 ms	468 KB	Output is correct
87	Correct	52 ms	448 KB	Output is correct
88	Correct	52 ms	504 KB	Output is correct
89	Correct	32 ms	528 KB	Output is correct
90	Correct	35 ms	468 KB	Output is correct
91	Correct	38 ms	432 KB	Output is correct
92	Correct	40 ms	480 KB	Output is correct

Subtask #5
37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	312 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	304 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	312 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	304 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	280 KB	Output is correct
26	Correct	1 ms	308 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	308 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	1 ms	212 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	1 ms	312 KB	Output is correct
36	Correct	1 ms	304 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	1 ms	212 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	308 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	0 ms	244 KB	Output is correct
47	Correct	1 ms	308 KB	Output is correct
48	Correct	1 ms	308 KB	Output is correct
49	Correct	0 ms	224 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	1 ms	212 KB	Output is correct
53	Correct	1 ms	212 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	1 ms	212 KB	Output is correct
56	Correct	1 ms	304 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	1 ms	304 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	10 ms	340 KB	Output is correct
66	Correct	10 ms	436 KB	Output is correct
67	Correct	9 ms	340 KB	Output is correct
68	Correct	8 ms	340 KB	Output is correct
69	Correct	23 ms	392 KB	Output is correct
70	Correct	15 ms	340 KB	Output is correct
71	Correct	17 ms	360 KB	Output is correct
72	Correct	20 ms	420 KB	Output is correct
73	Correct	13 ms	408 KB	Output is correct
74	Correct	14 ms	416 KB	Output is correct
75	Correct	15 ms	340 KB	Output is correct
76	Correct	16 ms	396 KB	Output is correct
77	Correct	29 ms	524 KB	Output is correct
78	Correct	28 ms	468 KB	Output is correct
79	Correct	27 ms	540 KB	Output is correct
80	Correct	25 ms	528 KB	Output is correct
81	Correct	24 ms	472 KB	Output is correct
82	Correct	22 ms	540 KB	Output is correct
83	Correct	21 ms	468 KB	Output is correct
84	Correct	20 ms	468 KB	Output is correct
85	Correct	67 ms	544 KB	Output is correct
86	Correct	49 ms	468 KB	Output is correct
87	Correct	52 ms	448 KB	Output is correct
88	Correct	52 ms	504 KB	Output is correct
89	Correct	32 ms	528 KB	Output is correct
90	Correct	35 ms	468 KB	Output is correct
91	Correct	38 ms	432 KB	Output is correct
92	Correct	40 ms	480 KB	Output is correct
93	Correct	1154 ms	2340 KB	Output is correct
94	Correct	1159 ms	2340 KB	Output is correct
95	Correct	1157 ms	2384 KB	Output is correct
96	Correct	823 ms	2260 KB	Output is correct
97	Correct	737 ms	2288 KB	Output is correct
98	Correct	853 ms	2368 KB	Output is correct
99	Correct	94 ms	796 KB	Output is correct
100	Correct	79 ms	804 KB	Output is correct
101	Correct	73 ms	744 KB	Output is correct
102	Correct	71 ms	724 KB	Output is correct
103	Correct	867 ms	1204 KB	Output is correct
104	Correct	496 ms	1244 KB	Output is correct
105	Correct	323 ms	1228 KB	Output is correct
106	Correct	230 ms	1196 KB	Output is correct
107	Correct	2572 ms	2360 KB	Output is correct
108	Correct	897 ms	2296 KB	Output is correct
109	Correct	636 ms	2236 KB	Output is correct
110	Correct	552 ms	2328 KB	Output is correct
111	Correct	61 ms	716 KB	Output is correct
112	Correct	57 ms	684 KB	Output is correct
113	Correct	62 ms	880 KB	Output is correct
114	Correct	196 ms	740 KB	Output is correct
115	Correct	130 ms	696 KB	Output is correct
116	Correct	143 ms	788 KB	Output is correct
117	Correct	160 ms	848 KB	Output is correct
118	Correct	95 ms	748 KB	Output is correct
119	Correct	102 ms	712 KB	Output is correct
120	Correct	110 ms	796 KB	Output is correct
121	Correct	123 ms	716 KB	Output is correct
122	Correct	237 ms	1316 KB	Output is correct
123	Correct	174 ms	1228 KB	Output is correct
124	Correct	170 ms	1216 KB	Output is correct
125	Correct	165 ms	1320 KB	Output is correct
126	Correct	155 ms	1232 KB	Output is correct
127	Correct	150 ms	1308 KB	Output is correct
128	Correct	141 ms	1252 KB	Output is correct
129	Correct	147 ms	1344 KB	Output is correct
130	Correct	131 ms	1380 KB	Output is correct
131	Correct	571 ms	1560 KB	Output is correct
132	Correct	381 ms	1300 KB	Output is correct
133	Correct	419 ms	1484 KB	Output is correct
134	Correct	445 ms	1424 KB	Output is correct
135	Correct	267 ms	1232 KB	Output is correct
136	Correct	299 ms	1436 KB	Output is correct
137	Correct	320 ms	1392 KB	Output is correct
138	Correct	350 ms	1320 KB	Output is correct
139	Correct	217 ms	1208 KB	Output is correct
140	Correct	264 ms	1316 KB	Output is correct
141	Correct	270 ms	1244 KB	Output is correct
142	Correct	484 ms	2452 KB	Output is correct
143	Correct	473 ms	2344 KB	Output is correct
144	Correct	434 ms	2460 KB	Output is correct
145	Correct	466 ms	2248 KB	Output is correct
146	Correct	424 ms	2424 KB	Output is correct
147	Correct	385 ms	2252 KB	Output is correct
148	Correct	515 ms	2324 KB	Output is correct
149	Correct	475 ms	2392 KB	Output is correct
150	Correct	510 ms	2316 KB	Output is correct
151	Correct	658 ms	2332 KB	Output is correct
152	Correct	646 ms	2408 KB	Output is correct
153	Correct	842 ms	2424 KB	Output is correct
154	Correct	814 ms	2572 KB	Output is correct
155	Correct	962 ms	2276 KB	Output is correct
156	Correct	1032 ms	2408 KB	Output is correct
157	Correct	906 ms	2248 KB	Output is correct
158	Correct	970 ms	2416 KB	Output is correct
159	Correct	626 ms	2308 KB	Output is correct
160	Correct	714 ms	2252 KB	Output is correct
161	Correct	799 ms	2268 KB	Output is correct
162	Correct	534 ms	2332 KB	Output is correct
163	Correct	587 ms	2252 KB	Output is correct
164	Correct	565 ms	2312 KB	Output is correct
165	Correct	615 ms	2320 KB	Output is correct
166	Correct	645 ms	2344 KB	Output is correct
167	Correct	671 ms	2300 KB	Output is correct

Submission #697267

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