Submission #699186

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
699186	2023-02-16T01:52:08 Z	vjudge1	Amusement Park (CEOI19_amusementpark)	C++17	100 / 100	1020 ms	2648 KB

amusementpark

/* ...... */

#include <bits/stdc++.h>
using namespace std;

#define inl inline
#define all(p) begin (p), end (p)
typedef long long ll;
using pint = pair <int, int>;
#define ctz __builtin_ctz

constexpr int N = 18, P = 998244353;
int n, m, x, y, e[N]; ll f[1<<N]; bool g[1<<N];
vector <pint> l1, l2;

int main () {
	/*  */
	scanf ("%d%d", &n, &m); g[0] = 1;
	for (int i = 1; i <= m; ++i)
		scanf ("%d%d", &x, &y), --x, --y,
		e[x] |= 1<<y, e[y] |= 1<<x;
	for (int s = 1, msk; s < 1<<n; ++s)
		x = ctz (s), msk = s ^ (1<<x),
		g[s] = g[msk] && !(e[x] & msk);
	for (int s = 0; s < 1<<n; ++s) {
		(f[s] += g[s]) %= P; int sube = 0, msk;
		for (x = 0; x < n; ++x)
			if ((s >> x) & 1) sube |= e[x];
		sube &= ((1<<n)-1) ^ s;
		msk = sube; while (msk)
			f[s | msk] += f[s] * g[msk] *
				(P - 1 + (__builtin_parity (msk)<<1)) % P,
			(--msk) &= sube;
	}
	printf ("%lld", f[(1<<n)-1] * m % P * (P+1ll>>1) % P);

	return 0;
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:35:42: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   35 |  printf ("%lld", f[(1<<n)-1] * m % P * (P+1ll>>1) % P);
      |                                         ~^~~~
amusementpark.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |  scanf ("%d%d", &n, &m); g[0] = 1;
      |  ~~~~~~^~~~~~~~~~~~~~~~
amusementpark.cpp:20:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   scanf ("%d%d", &x, &y), --x, --y,
      |   ~~~~~~^~~~~~~~~~~~~~~~

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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	216 KB	Output is correct
6	Correct	0 ms	216 KB	Output is correct
7	Correct	1 ms	308 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	1 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	212 KB	Output is correct
5	Correct	0 ms	216 KB	Output is correct
6	Correct	0 ms	216 KB	Output is correct
7	Correct	1 ms	308 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	216 KB	Output is correct
11	Correct	0 ms	316 KB	Output is correct
12	Correct	1 ms	216 KB	Output is correct
13	Correct	0 ms	224 KB	Output is correct
14	Correct	1 ms	220 KB	Output is correct
15	Correct	1 ms	220 KB	Output is correct
16	Correct	1 ms	224 KB	Output is correct
17	Correct	0 ms	224 KB	Output is correct
18	Correct	1 ms	224 KB	Output is correct
19	Correct	1 ms	224 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	304 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	1 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	212 KB	Output is correct
5	Correct	0 ms	216 KB	Output is correct
6	Correct	0 ms	216 KB	Output is correct
7	Correct	1 ms	308 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	216 KB	Output is correct
11	Correct	0 ms	316 KB	Output is correct
12	Correct	1 ms	216 KB	Output is correct
13	Correct	0 ms	224 KB	Output is correct
14	Correct	1 ms	220 KB	Output is correct
15	Correct	1 ms	220 KB	Output is correct
16	Correct	1 ms	224 KB	Output is correct
17	Correct	0 ms	224 KB	Output is correct
18	Correct	1 ms	224 KB	Output is correct
19	Correct	1 ms	224 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	304 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	1 ms	308 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	1 ms	212 KB	Output is correct
35	Correct	0 ms	300 KB	Output is correct
36	Correct	1 ms	312 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	1 ms	308 KB	Output is correct
39	Correct	1 ms	304 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	0 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	1 ms	308 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	212 KB	Output is correct
57	Correct	1 ms	212 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	312 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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	216 KB	Output is correct
6	Correct	0 ms	216 KB	Output is correct
7	Correct	1 ms	308 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	216 KB	Output is correct
11	Correct	0 ms	316 KB	Output is correct
12	Correct	1 ms	216 KB	Output is correct
13	Correct	0 ms	224 KB	Output is correct
14	Correct	1 ms	220 KB	Output is correct
15	Correct	1 ms	220 KB	Output is correct
16	Correct	1 ms	224 KB	Output is correct
17	Correct	0 ms	224 KB	Output is correct
18	Correct	1 ms	224 KB	Output is correct
19	Correct	1 ms	224 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	304 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	1 ms	308 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	1 ms	212 KB	Output is correct
35	Correct	0 ms	300 KB	Output is correct
36	Correct	1 ms	312 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	1 ms	308 KB	Output is correct
39	Correct	1 ms	304 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	0 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	1 ms	308 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	212 KB	Output is correct
57	Correct	1 ms	212 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	312 KB	Output is correct
65	Correct	10 ms	340 KB	Output is correct
66	Correct	10 ms	476 KB	Output is correct
67	Correct	11 ms	428 KB	Output is correct
68	Correct	13 ms	460 KB	Output is correct
69	Correct	5 ms	340 KB	Output is correct
70	Correct	8 ms	352 KB	Output is correct
71	Correct	8 ms	448 KB	Output is correct
72	Correct	8 ms	476 KB	Output is correct
73	Correct	10 ms	468 KB	Output is correct
74	Correct	10 ms	440 KB	Output is correct
75	Correct	10 ms	468 KB	Output is correct
76	Correct	12 ms	476 KB	Output is correct
77	Correct	14 ms	616 KB	Output is correct
78	Correct	21 ms	608 KB	Output is correct
79	Correct	25 ms	608 KB	Output is correct
80	Correct	25 ms	608 KB	Output is correct
81	Correct	29 ms	608 KB	Output is correct
82	Correct	37 ms	608 KB	Output is correct
83	Correct	36 ms	576 KB	Output is correct
84	Correct	36 ms	608 KB	Output is correct
85	Correct	14 ms	576 KB	Output is correct
86	Correct	23 ms	608 KB	Output is correct
87	Correct	22 ms	608 KB	Output is correct
88	Correct	22 ms	576 KB	Output is correct
89	Correct	28 ms	608 KB	Output is correct
90	Correct	29 ms	608 KB	Output is correct
91	Correct	28 ms	480 KB	Output is correct
92	Correct	29 ms	608 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	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	216 KB	Output is correct
6	Correct	0 ms	216 KB	Output is correct
7	Correct	1 ms	308 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	216 KB	Output is correct
11	Correct	0 ms	316 KB	Output is correct
12	Correct	1 ms	216 KB	Output is correct
13	Correct	0 ms	224 KB	Output is correct
14	Correct	1 ms	220 KB	Output is correct
15	Correct	1 ms	220 KB	Output is correct
16	Correct	1 ms	224 KB	Output is correct
17	Correct	0 ms	224 KB	Output is correct
18	Correct	1 ms	224 KB	Output is correct
19	Correct	1 ms	224 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	304 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	304 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	1 ms	308 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	1 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	1 ms	212 KB	Output is correct
35	Correct	0 ms	300 KB	Output is correct
36	Correct	1 ms	312 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	1 ms	308 KB	Output is correct
39	Correct	1 ms	304 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	0 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	1 ms	308 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	212 KB	Output is correct
57	Correct	1 ms	212 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	312 KB	Output is correct
65	Correct	10 ms	340 KB	Output is correct
66	Correct	10 ms	476 KB	Output is correct
67	Correct	11 ms	428 KB	Output is correct
68	Correct	13 ms	460 KB	Output is correct
69	Correct	5 ms	340 KB	Output is correct
70	Correct	8 ms	352 KB	Output is correct
71	Correct	8 ms	448 KB	Output is correct
72	Correct	8 ms	476 KB	Output is correct
73	Correct	10 ms	468 KB	Output is correct
74	Correct	10 ms	440 KB	Output is correct
75	Correct	10 ms	468 KB	Output is correct
76	Correct	12 ms	476 KB	Output is correct
77	Correct	14 ms	616 KB	Output is correct
78	Correct	21 ms	608 KB	Output is correct
79	Correct	25 ms	608 KB	Output is correct
80	Correct	25 ms	608 KB	Output is correct
81	Correct	29 ms	608 KB	Output is correct
82	Correct	37 ms	608 KB	Output is correct
83	Correct	36 ms	576 KB	Output is correct
84	Correct	36 ms	608 KB	Output is correct
85	Correct	14 ms	576 KB	Output is correct
86	Correct	23 ms	608 KB	Output is correct
87	Correct	22 ms	608 KB	Output is correct
88	Correct	22 ms	576 KB	Output is correct
89	Correct	28 ms	608 KB	Output is correct
90	Correct	29 ms	608 KB	Output is correct
91	Correct	28 ms	480 KB	Output is correct
92	Correct	29 ms	608 KB	Output is correct
93	Correct	595 ms	2648 KB	Output is correct
94	Correct	259 ms	2608 KB	Output is correct
95	Correct	127 ms	2636 KB	Output is correct
96	Correct	738 ms	2604 KB	Output is correct
97	Correct	733 ms	2516 KB	Output is correct
98	Correct	580 ms	2588 KB	Output is correct
99	Correct	27 ms	872 KB	Output is correct
100	Correct	49 ms	868 KB	Output is correct
101	Correct	66 ms	876 KB	Output is correct
102	Correct	80 ms	876 KB	Output is correct
103	Correct	8 ms	1364 KB	Output is correct
104	Correct	12 ms	1364 KB	Output is correct
105	Correct	26 ms	1364 KB	Output is correct
106	Correct	94 ms	1468 KB	Output is correct
107	Correct	15 ms	2540 KB	Output is correct
108	Correct	68 ms	2484 KB	Output is correct
109	Correct	279 ms	2516 KB	Output is correct
110	Correct	614 ms	2592 KB	Output is correct
111	Correct	95 ms	940 KB	Output is correct
112	Correct	97 ms	876 KB	Output is correct
113	Correct	107 ms	868 KB	Output is correct
114	Correct	41 ms	972 KB	Output is correct
115	Correct	65 ms	852 KB	Output is correct
116	Correct	65 ms	868 KB	Output is correct
117	Correct	64 ms	852 KB	Output is correct
118	Correct	81 ms	852 KB	Output is correct
119	Correct	83 ms	852 KB	Output is correct
120	Correct	81 ms	852 KB	Output is correct
121	Correct	81 ms	876 KB	Output is correct
122	Correct	197 ms	1448 KB	Output is correct
123	Correct	263 ms	1448 KB	Output is correct
124	Correct	290 ms	1456 KB	Output is correct
125	Correct	303 ms	1460 KB	Output is correct
126	Correct	314 ms	1364 KB	Output is correct
127	Correct	327 ms	1448 KB	Output is correct
128	Correct	334 ms	1488 KB	Output is correct
129	Correct	332 ms	1364 KB	Output is correct
130	Correct	356 ms	1444 KB	Output is correct
131	Correct	122 ms	1460 KB	Output is correct
132	Correct	211 ms	1452 KB	Output is correct
133	Correct	190 ms	1448 KB	Output is correct
134	Correct	188 ms	1456 KB	Output is correct
135	Correct	241 ms	1448 KB	Output is correct
136	Correct	245 ms	1460 KB	Output is correct
137	Correct	237 ms	1448 KB	Output is correct
138	Correct	242 ms	1444 KB	Output is correct
139	Correct	279 ms	1452 KB	Output is correct
140	Correct	273 ms	1456 KB	Output is correct
141	Correct	274 ms	1448 KB	Output is correct
142	Correct	784 ms	2516 KB	Output is correct
143	Correct	907 ms	2636 KB	Output is correct
144	Correct	953 ms	2592 KB	Output is correct
145	Correct	981 ms	2592 KB	Output is correct
146	Correct	1018 ms	2604 KB	Output is correct
147	Correct	1020 ms	2600 KB	Output is correct
148	Correct	797 ms	2636 KB	Output is correct
149	Correct	852 ms	2636 KB	Output is correct
150	Correct	825 ms	2592 KB	Output is correct
151	Correct	428 ms	2620 KB	Output is correct
152	Correct	436 ms	2596 KB	Output is correct
153	Correct	734 ms	2636 KB	Output is correct
154	Correct	724 ms	2592 KB	Output is correct
155	Correct	721 ms	2592 KB	Output is correct
156	Correct	710 ms	2592 KB	Output is correct
157	Correct	761 ms	2592 KB	Output is correct
158	Correct	723 ms	2604 KB	Output is correct
159	Correct	820 ms	2636 KB	Output is correct
160	Correct	812 ms	2592 KB	Output is correct
161	Correct	803 ms	2636 KB	Output is correct
162	Correct	886 ms	2636 KB	Output is correct
163	Correct	890 ms	2636 KB	Output is correct
164	Correct	890 ms	2588 KB	Output is correct
165	Correct	882 ms	2596 KB	Output is correct
166	Correct	883 ms	2636 KB	Output is correct
167	Correct	874 ms	2636 KB	Output is correct

Submission #699186

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