Submission #698981

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
698981	2023-02-15T07:01:03 Z	vjudge1	Amusement Park (CEOI19_amusementpark)	C++14	100 / 100	776 ms	2532 KB

amusementpark

#include <bits/stdc++.h>
using namespace std;
const int maxn=20,maxm=262200;
const int md=998244353,i2=499122177;
int n,m,i,j,u,v,b,f[maxm],g[maxm];
bool e[maxn][maxn];
int main(){
	scanf("%d%d",&n,&m); b=1<<n;
	for(i=1;i<=m;++i){
		scanf("%d%d",&u,&v);
		--u; --v; e[u][v]=e[v][u]=1;
	}
	memset(g,-1,sizeof(g));
	for(i=1;i<b;i<<=1) g[i]=0; f[0]=1;
	for(i=1;i<b;++i){
		if(g[i]){
			if(~g[v=i^(1<<(u=__lg(i&-i)))])
				for(;v;v^=j) if(e[u][__lg(j=v&-v)]) break;
			if(!v) g[i]=!g[i^(1<<u)];
		}
		for(j=i,v=0;j;j=(j-1)&i){
			if(~g[j]){
				u=f[i^j]; if(g[j]) u=md-u;
				v-=((v+=u)>=md)*md;
			}
		}
		f[i]=v;
	}
	printf("%d",1LL*f[b-1]*m%md*i2%md);
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:14:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   14 |  for(i=1;i<b;i<<=1) g[i]=0; f[0]=1;
      |  ^~~
amusementpark.cpp:14:29: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   14 |  for(i=1;i<b;i<<=1) g[i]=0; f[0]=1;
      |                             ^
amusementpark.cpp:29:11: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   29 |  printf("%d",1LL*f[b-1]*m%md*i2%md);
      |          ~^  ~~~~~~~~~~~~~~~~~~~~~
      |           |                    |
      |           int                  long long int
      |          %lld
amusementpark.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  scanf("%d%d",&n,&m); b=1<<n;
      |  ~~~~~^~~~~~~~~~~~~~
amusementpark.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   scanf("%d%d",&u,&v);
      |   ~~~~~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	1 ms	1328 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1332 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	1 ms	1328 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1332 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1328 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1328 KB	Output is correct
13	Correct	1 ms	1236 KB	Output is correct
14	Correct	1 ms	1236 KB	Output is correct
15	Correct	1 ms	1236 KB	Output is correct
16	Correct	1 ms	1332 KB	Output is correct
17	Correct	1 ms	1328 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	3 ms	1236 KB	Output is correct
22	Correct	1 ms	1332 KB	Output is correct
23	Correct	1 ms	1328 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	1 ms	1328 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1332 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1328 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1328 KB	Output is correct
13	Correct	1 ms	1236 KB	Output is correct
14	Correct	1 ms	1236 KB	Output is correct
15	Correct	1 ms	1236 KB	Output is correct
16	Correct	1 ms	1332 KB	Output is correct
17	Correct	1 ms	1328 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	3 ms	1236 KB	Output is correct
22	Correct	1 ms	1332 KB	Output is correct
23	Correct	1 ms	1328 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	1 ms	1236 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	1 ms	1236 KB	Output is correct
32	Correct	1 ms	1236 KB	Output is correct
33	Correct	1 ms	1328 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1328 KB	Output is correct
36	Correct	1 ms	1236 KB	Output is correct
37	Correct	1 ms	1236 KB	Output is correct
38	Correct	1 ms	1332 KB	Output is correct
39	Correct	1 ms	1236 KB	Output is correct
40	Correct	1 ms	1236 KB	Output is correct
41	Correct	1 ms	1332 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1324 KB	Output is correct
44	Correct	1 ms	1236 KB	Output is correct
45	Correct	1 ms	1328 KB	Output is correct
46	Correct	1 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1328 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	1 ms	1328 KB	Output is correct
51	Correct	1 ms	1332 KB	Output is correct
52	Correct	1 ms	1284 KB	Output is correct
53	Correct	1 ms	1336 KB	Output is correct
54	Correct	2 ms	1236 KB	Output is correct
55	Correct	2 ms	1364 KB	Output is correct
56	Correct	1 ms	1236 KB	Output is correct
57	Correct	1 ms	1236 KB	Output is correct
58	Correct	1 ms	1332 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	1 ms	1236 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1236 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	1 ms	1332 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	1 ms	1328 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1332 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1328 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1328 KB	Output is correct
13	Correct	1 ms	1236 KB	Output is correct
14	Correct	1 ms	1236 KB	Output is correct
15	Correct	1 ms	1236 KB	Output is correct
16	Correct	1 ms	1332 KB	Output is correct
17	Correct	1 ms	1328 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	3 ms	1236 KB	Output is correct
22	Correct	1 ms	1332 KB	Output is correct
23	Correct	1 ms	1328 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	1 ms	1236 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	1 ms	1236 KB	Output is correct
32	Correct	1 ms	1236 KB	Output is correct
33	Correct	1 ms	1328 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1328 KB	Output is correct
36	Correct	1 ms	1236 KB	Output is correct
37	Correct	1 ms	1236 KB	Output is correct
38	Correct	1 ms	1332 KB	Output is correct
39	Correct	1 ms	1236 KB	Output is correct
40	Correct	1 ms	1236 KB	Output is correct
41	Correct	1 ms	1332 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1324 KB	Output is correct
44	Correct	1 ms	1236 KB	Output is correct
45	Correct	1 ms	1328 KB	Output is correct
46	Correct	1 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1328 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	1 ms	1328 KB	Output is correct
51	Correct	1 ms	1332 KB	Output is correct
52	Correct	1 ms	1284 KB	Output is correct
53	Correct	1 ms	1336 KB	Output is correct
54	Correct	2 ms	1236 KB	Output is correct
55	Correct	2 ms	1364 KB	Output is correct
56	Correct	1 ms	1236 KB	Output is correct
57	Correct	1 ms	1236 KB	Output is correct
58	Correct	1 ms	1332 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	1 ms	1236 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1236 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	1 ms	1332 KB	Output is correct
65	Correct	9 ms	1396 KB	Output is correct
66	Correct	10 ms	1364 KB	Output is correct
67	Correct	9 ms	1368 KB	Output is correct
68	Correct	9 ms	1380 KB	Output is correct
69	Correct	9 ms	1396 KB	Output is correct
70	Correct	8 ms	1364 KB	Output is correct
71	Correct	8 ms	1364 KB	Output is correct
72	Correct	8 ms	1380 KB	Output is correct
73	Correct	7 ms	1332 KB	Output is correct
74	Correct	7 ms	1364 KB	Output is correct
75	Correct	8 ms	1376 KB	Output is correct
76	Correct	7 ms	1376 KB	Output is correct
77	Correct	28 ms	1416 KB	Output is correct
78	Correct	26 ms	1492 KB	Output is correct
79	Correct	25 ms	1408 KB	Output is correct
80	Correct	24 ms	1384 KB	Output is correct
81	Correct	23 ms	1364 KB	Output is correct
82	Correct	24 ms	1492 KB	Output is correct
83	Correct	20 ms	1384 KB	Output is correct
84	Correct	20 ms	1396 KB	Output is correct
85	Correct	24 ms	1364 KB	Output is correct
86	Correct	21 ms	1364 KB	Output is correct
87	Correct	25 ms	1364 KB	Output is correct
88	Correct	22 ms	1416 KB	Output is correct
89	Correct	19 ms	1444 KB	Output is correct
90	Correct	19 ms	1460 KB	Output is correct
91	Correct	21 ms	1444 KB	Output is correct
92	Correct	21 ms	1344 KB	Output is correct

Subtask #5
37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	1 ms	1328 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1332 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1328 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1328 KB	Output is correct
13	Correct	1 ms	1236 KB	Output is correct
14	Correct	1 ms	1236 KB	Output is correct
15	Correct	1 ms	1236 KB	Output is correct
16	Correct	1 ms	1332 KB	Output is correct
17	Correct	1 ms	1328 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	3 ms	1236 KB	Output is correct
22	Correct	1 ms	1332 KB	Output is correct
23	Correct	1 ms	1328 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	1 ms	1236 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	1 ms	1236 KB	Output is correct
32	Correct	1 ms	1236 KB	Output is correct
33	Correct	1 ms	1328 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1328 KB	Output is correct
36	Correct	1 ms	1236 KB	Output is correct
37	Correct	1 ms	1236 KB	Output is correct
38	Correct	1 ms	1332 KB	Output is correct
39	Correct	1 ms	1236 KB	Output is correct
40	Correct	1 ms	1236 KB	Output is correct
41	Correct	1 ms	1332 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1324 KB	Output is correct
44	Correct	1 ms	1236 KB	Output is correct
45	Correct	1 ms	1328 KB	Output is correct
46	Correct	1 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1328 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	1 ms	1328 KB	Output is correct
51	Correct	1 ms	1332 KB	Output is correct
52	Correct	1 ms	1284 KB	Output is correct
53	Correct	1 ms	1336 KB	Output is correct
54	Correct	2 ms	1236 KB	Output is correct
55	Correct	2 ms	1364 KB	Output is correct
56	Correct	1 ms	1236 KB	Output is correct
57	Correct	1 ms	1236 KB	Output is correct
58	Correct	1 ms	1332 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	1 ms	1236 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1236 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	1 ms	1332 KB	Output is correct
65	Correct	9 ms	1396 KB	Output is correct
66	Correct	10 ms	1364 KB	Output is correct
67	Correct	9 ms	1368 KB	Output is correct
68	Correct	9 ms	1380 KB	Output is correct
69	Correct	9 ms	1396 KB	Output is correct
70	Correct	8 ms	1364 KB	Output is correct
71	Correct	8 ms	1364 KB	Output is correct
72	Correct	8 ms	1380 KB	Output is correct
73	Correct	7 ms	1332 KB	Output is correct
74	Correct	7 ms	1364 KB	Output is correct
75	Correct	8 ms	1376 KB	Output is correct
76	Correct	7 ms	1376 KB	Output is correct
77	Correct	28 ms	1416 KB	Output is correct
78	Correct	26 ms	1492 KB	Output is correct
79	Correct	25 ms	1408 KB	Output is correct
80	Correct	24 ms	1384 KB	Output is correct
81	Correct	23 ms	1364 KB	Output is correct
82	Correct	24 ms	1492 KB	Output is correct
83	Correct	20 ms	1384 KB	Output is correct
84	Correct	20 ms	1396 KB	Output is correct
85	Correct	24 ms	1364 KB	Output is correct
86	Correct	21 ms	1364 KB	Output is correct
87	Correct	25 ms	1364 KB	Output is correct
88	Correct	22 ms	1416 KB	Output is correct
89	Correct	19 ms	1444 KB	Output is correct
90	Correct	19 ms	1460 KB	Output is correct
91	Correct	21 ms	1444 KB	Output is correct
92	Correct	21 ms	1344 KB	Output is correct
93	Correct	584 ms	2320 KB	Output is correct
94	Correct	540 ms	2324 KB	Output is correct
95	Correct	634 ms	2308 KB	Output is correct
96	Correct	522 ms	2304 KB	Output is correct
97	Correct	576 ms	2292 KB	Output is correct
98	Correct	557 ms	2464 KB	Output is correct
99	Correct	108 ms	1616 KB	Output is correct
100	Correct	73 ms	1484 KB	Output is correct
101	Correct	70 ms	1624 KB	Output is correct
102	Correct	68 ms	1548 KB	Output is correct
103	Correct	279 ms	1804 KB	Output is correct
104	Correct	220 ms	1704 KB	Output is correct
105	Correct	211 ms	1824 KB	Output is correct
106	Correct	226 ms	1752 KB	Output is correct
107	Correct	776 ms	2532 KB	Output is correct
108	Correct	648 ms	2244 KB	Output is correct
109	Correct	616 ms	2332 KB	Output is correct
110	Correct	564 ms	2328 KB	Output is correct
111	Correct	64 ms	1448 KB	Output is correct
112	Correct	61 ms	1532 KB	Output is correct
113	Correct	56 ms	1572 KB	Output is correct
114	Correct	69 ms	1612 KB	Output is correct
115	Correct	60 ms	1484 KB	Output is correct
116	Correct	63 ms	1484 KB	Output is correct
117	Correct	84 ms	1464 KB	Output is correct
118	Correct	55 ms	1564 KB	Output is correct
119	Correct	72 ms	1564 KB	Output is correct
120	Correct	57 ms	1568 KB	Output is correct
121	Correct	77 ms	1544 KB	Output is correct
122	Correct	199 ms	1812 KB	Output is correct
123	Correct	173 ms	1704 KB	Output is correct
124	Correct	166 ms	1804 KB	Output is correct
125	Correct	171 ms	1764 KB	Output is correct
126	Correct	160 ms	1824 KB	Output is correct
127	Correct	155 ms	1820 KB	Output is correct
128	Correct	155 ms	1800 KB	Output is correct
129	Correct	147 ms	1772 KB	Output is correct
130	Correct	140 ms	1820 KB	Output is correct
131	Correct	205 ms	1820 KB	Output is correct
132	Correct	182 ms	1832 KB	Output is correct
133	Correct	185 ms	1796 KB	Output is correct
134	Correct	183 ms	1824 KB	Output is correct
135	Correct	163 ms	1804 KB	Output is correct
136	Correct	199 ms	1828 KB	Output is correct
137	Correct	162 ms	1772 KB	Output is correct
138	Correct	192 ms	1812 KB	Output is correct
139	Correct	168 ms	1804 KB	Output is correct
140	Correct	180 ms	1816 KB	Output is correct
141	Correct	159 ms	1756 KB	Output is correct
142	Correct	501 ms	2320 KB	Output is correct
143	Correct	516 ms	2420 KB	Output is correct
144	Correct	451 ms	2284 KB	Output is correct
145	Correct	472 ms	2424 KB	Output is correct
146	Correct	424 ms	2332 KB	Output is correct
147	Correct	430 ms	2324 KB	Output is correct
148	Correct	561 ms	2324 KB	Output is correct
149	Correct	507 ms	2448 KB	Output is correct
150	Correct	563 ms	2336 KB	Output is correct
151	Correct	552 ms	2476 KB	Output is correct
152	Correct	508 ms	2332 KB	Output is correct
153	Correct	514 ms	2400 KB	Output is correct
154	Correct	494 ms	2316 KB	Output is correct
155	Correct	533 ms	2464 KB	Output is correct
156	Correct	515 ms	2496 KB	Output is correct
157	Correct	511 ms	2324 KB	Output is correct
158	Correct	493 ms	2348 KB	Output is correct
159	Correct	494 ms	2308 KB	Output is correct
160	Correct	470 ms	2248 KB	Output is correct
161	Correct	496 ms	2336 KB	Output is correct
162	Correct	472 ms	2236 KB	Output is correct
163	Correct	498 ms	2264 KB	Output is correct
164	Correct	459 ms	2336 KB	Output is correct
165	Correct	434 ms	2324 KB	Output is correct
166	Correct	470 ms	2380 KB	Output is correct
167	Correct	457 ms	2436 KB	Output is correct

Submission #698981

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