답안 #696744

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
696744	2023-02-07T06:53:43 Z	vjudge1	Amusement Park (CEOI19_amusementpark)	C++14	100 / 100	2700 ms	1800 KB

amusementpark

#include<bits/stdc++.h>
#define ll long long
#define lll __int128
#define db double
#define ld long double
#define pii pair<int,int>
#define fi first
#define se second
#define vi vector<int>
using namespace std;
namespace IO
{
	const int SZ=1<<20;
	char gchar()
	{
	    static char buf[SZ];
	    static int i=SZ;
	    if(i==SZ)i=0,fread(buf,1,SZ,stdin);
	    return buf[i++];
	}
	void pchar(char c)
	{
	    static char buf[SZ];
	    static int i=0;
	    if(c)buf[i++]=c;
	    if(!c||i==SZ)fwrite(buf,1,i,stdout),i=0;
	}
	void pstr(string s,char end='\n')
	{
		for(char c:s)pchar(c);
		pchar(end);
	}
	template<typename T>void read(T &x)
	{
	    x=0;int f=1;
	    static char c;
	    while((c=gchar())>'9'||c<'0')if(c=='-')f=-1;
	    x=c-'0';
	    while((c=gchar())>='0'&&c<='9')
			x=(x<<1)+(x<<3)+(c^48);
		x*=f;
	}
	template<typename T,typename ...Args>void read(T &x,Args&...args){read(x),read(args...);}
	template<typename T>void i_write(T x)
	{
	    if(x>9)i_write(x/10);
	    pchar(x%10+'0');
	}
	template<typename T>void write(T x,char end='\n')
	{
	    if(x<0)pchar('-'),x=-x;
	    if(x>9)i_write(x/10);
	    pchar(x%10+'0');
	    pchar(end);
	}
}
using IO::read;
using IO::write;
const int N=400,mod=998244353,inv2=(mod+1)>>1;
int n,m,x[N],y[N],f[1<<18];
bool flg[1<<18];
int main()
{
	read(n,m);
	for(int i=1;i<=m;i++)read(x[i],y[i]);
	for(int msk=0;msk<(1<<n);msk++)
		for(int i=1;i<=m;i++)
			if((msk&(1<<x[i]-1))&&(msk&(1<<y[i]-1)))flg[msk]=1;
	f[0]=1;
	for(int msk=1;msk<(1<<n);msk++)
		for(int s=msk;s;s=msk&(s-1))
			if(!flg[s])f[msk]=(0ll+f[msk]+(__builtin_popcount(s)&1?1:-1)*f[msk^s]+mod)%mod;
	printf("%lld",1ll*m*inv2%mod*f[(1<<n)-1]%mod);
	IO::pchar(0);
	return 0;
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:68:20: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   68 |    if((msk&(1<<x[i]-1))&&(msk&(1<<y[i]-1)))flg[msk]=1;
      |                ~~~~^~
amusementpark.cpp:68:39: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   68 |    if((msk&(1<<x[i]-1))&&(msk&(1<<y[i]-1)))flg[msk]=1;
      |                                   ~~~~^~
amusementpark.cpp: In function 'char IO::gchar()':
amusementpark.cpp:18:24: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |      if(i==SZ)i=0,fread(buf,1,SZ,stdin);
      |                   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	316 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	312 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	316 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	312 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 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	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	312 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	316 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	312 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 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	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	312 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	316 KB	Output is correct
28	Correct	0 ms	316 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	1 ms	212 KB	Output is correct
34	Correct	1 ms	320 KB	Output is correct
35	Correct	1 ms	212 KB	Output is correct
36	Correct	1 ms	212 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	1 ms	212 KB	Output is correct
40	Correct	1 ms	316 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	312 KB	Output is correct
46	Correct	1 ms	320 KB	Output is correct
47	Correct	1 ms	320 KB	Output is correct
48	Correct	1 ms	316 KB	Output is correct
49	Correct	1 ms	212 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	1 ms	320 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	320 KB	Output is correct
58	Correct	1 ms	340 KB	Output is correct
59	Correct	1 ms	340 KB	Output is correct
60	Correct	1 ms	340 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	340 KB	Output is correct
63	Correct	1 ms	312 KB	Output is correct
64	Correct	1 ms	316 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	316 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	312 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 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	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	312 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	316 KB	Output is correct
28	Correct	0 ms	316 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	1 ms	212 KB	Output is correct
34	Correct	1 ms	320 KB	Output is correct
35	Correct	1 ms	212 KB	Output is correct
36	Correct	1 ms	212 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	1 ms	212 KB	Output is correct
40	Correct	1 ms	316 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	312 KB	Output is correct
46	Correct	1 ms	320 KB	Output is correct
47	Correct	1 ms	320 KB	Output is correct
48	Correct	1 ms	316 KB	Output is correct
49	Correct	1 ms	212 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	1 ms	320 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	320 KB	Output is correct
58	Correct	1 ms	340 KB	Output is correct
59	Correct	1 ms	340 KB	Output is correct
60	Correct	1 ms	340 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	340 KB	Output is correct
63	Correct	1 ms	312 KB	Output is correct
64	Correct	1 ms	316 KB	Output is correct
65	Correct	12 ms	340 KB	Output is correct
66	Correct	12 ms	408 KB	Output is correct
67	Correct	12 ms	400 KB	Output is correct
68	Correct	12 ms	340 KB	Output is correct
69	Correct	22 ms	488 KB	Output is correct
70	Correct	17 ms	368 KB	Output is correct
71	Correct	17 ms	340 KB	Output is correct
72	Correct	18 ms	312 KB	Output is correct
73	Correct	15 ms	316 KB	Output is correct
74	Correct	18 ms	388 KB	Output is correct
75	Correct	16 ms	460 KB	Output is correct
76	Correct	18 ms	340 KB	Output is correct
77	Correct	35 ms	452 KB	Output is correct
78	Correct	33 ms	444 KB	Output is correct
79	Correct	33 ms	468 KB	Output is correct
80	Correct	32 ms	456 KB	Output is correct
81	Correct	33 ms	476 KB	Output is correct
82	Correct	38 ms	432 KB	Output is correct
83	Correct	33 ms	444 KB	Output is correct
84	Correct	33 ms	452 KB	Output is correct
85	Correct	69 ms	388 KB	Output is correct
86	Correct	47 ms	460 KB	Output is correct
87	Correct	52 ms	436 KB	Output is correct
88	Correct	59 ms	460 KB	Output is correct
89	Correct	37 ms	444 KB	Output is correct
90	Correct	39 ms	400 KB	Output is correct
91	Correct	40 ms	460 KB	Output is correct
92	Correct	41 ms	444 KB	Output is correct

Subtask #5
37.0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	316 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	312 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 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	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	312 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	0 ms	316 KB	Output is correct
28	Correct	0 ms	316 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	1 ms	212 KB	Output is correct
34	Correct	1 ms	320 KB	Output is correct
35	Correct	1 ms	212 KB	Output is correct
36	Correct	1 ms	212 KB	Output is correct
37	Correct	1 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	1 ms	212 KB	Output is correct
40	Correct	1 ms	316 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	312 KB	Output is correct
46	Correct	1 ms	320 KB	Output is correct
47	Correct	1 ms	320 KB	Output is correct
48	Correct	1 ms	316 KB	Output is correct
49	Correct	1 ms	212 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	1 ms	320 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	320 KB	Output is correct
58	Correct	1 ms	340 KB	Output is correct
59	Correct	1 ms	340 KB	Output is correct
60	Correct	1 ms	340 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	340 KB	Output is correct
63	Correct	1 ms	312 KB	Output is correct
64	Correct	1 ms	316 KB	Output is correct
65	Correct	12 ms	340 KB	Output is correct
66	Correct	12 ms	408 KB	Output is correct
67	Correct	12 ms	400 KB	Output is correct
68	Correct	12 ms	340 KB	Output is correct
69	Correct	22 ms	488 KB	Output is correct
70	Correct	17 ms	368 KB	Output is correct
71	Correct	17 ms	340 KB	Output is correct
72	Correct	18 ms	312 KB	Output is correct
73	Correct	15 ms	316 KB	Output is correct
74	Correct	18 ms	388 KB	Output is correct
75	Correct	16 ms	460 KB	Output is correct
76	Correct	18 ms	340 KB	Output is correct
77	Correct	35 ms	452 KB	Output is correct
78	Correct	33 ms	444 KB	Output is correct
79	Correct	33 ms	468 KB	Output is correct
80	Correct	32 ms	456 KB	Output is correct
81	Correct	33 ms	476 KB	Output is correct
82	Correct	38 ms	432 KB	Output is correct
83	Correct	33 ms	444 KB	Output is correct
84	Correct	33 ms	452 KB	Output is correct
85	Correct	69 ms	388 KB	Output is correct
86	Correct	47 ms	460 KB	Output is correct
87	Correct	52 ms	436 KB	Output is correct
88	Correct	59 ms	460 KB	Output is correct
89	Correct	37 ms	444 KB	Output is correct
90	Correct	39 ms	400 KB	Output is correct
91	Correct	40 ms	460 KB	Output is correct
92	Correct	41 ms	444 KB	Output is correct
93	Correct	1203 ms	1520 KB	Output is correct
94	Correct	1195 ms	1724 KB	Output is correct
95	Correct	1295 ms	1584 KB	Output is correct
96	Correct	864 ms	1544 KB	Output is correct
97	Correct	839 ms	1472 KB	Output is correct
98	Correct	987 ms	1580 KB	Output is correct
99	Correct	105 ms	712 KB	Output is correct
100	Correct	96 ms	740 KB	Output is correct
101	Correct	94 ms	612 KB	Output is correct
102	Correct	87 ms	624 KB	Output is correct
103	Correct	893 ms	740 KB	Output is correct
104	Correct	475 ms	844 KB	Output is correct
105	Correct	340 ms	880 KB	Output is correct
106	Correct	266 ms	940 KB	Output is correct
107	Correct	2700 ms	1324 KB	Output is correct
108	Correct	995 ms	1576 KB	Output is correct
109	Correct	720 ms	1620 KB	Output is correct
110	Correct	640 ms	1648 KB	Output is correct
111	Correct	87 ms	568 KB	Output is correct
112	Correct	80 ms	576 KB	Output is correct
113	Correct	81 ms	580 KB	Output is correct
114	Correct	204 ms	676 KB	Output is correct
115	Correct	133 ms	596 KB	Output is correct
116	Correct	146 ms	708 KB	Output is correct
117	Correct	154 ms	548 KB	Output is correct
118	Correct	102 ms	608 KB	Output is correct
119	Correct	107 ms	532 KB	Output is correct
120	Correct	114 ms	588 KB	Output is correct
121	Correct	117 ms	544 KB	Output is correct
122	Correct	240 ms	964 KB	Output is correct
123	Correct	211 ms	920 KB	Output is correct
124	Correct	206 ms	844 KB	Output is correct
125	Correct	209 ms	984 KB	Output is correct
126	Correct	217 ms	836 KB	Output is correct
127	Correct	203 ms	940 KB	Output is correct
128	Correct	216 ms	908 KB	Output is correct
129	Correct	206 ms	948 KB	Output is correct
130	Correct	225 ms	976 KB	Output is correct
131	Correct	572 ms	1016 KB	Output is correct
132	Correct	395 ms	924 KB	Output is correct
133	Correct	435 ms	932 KB	Output is correct
134	Correct	461 ms	976 KB	Output is correct
135	Correct	295 ms	940 KB	Output is correct
136	Correct	314 ms	916 KB	Output is correct
137	Correct	329 ms	940 KB	Output is correct
138	Correct	348 ms	956 KB	Output is correct
139	Correct	251 ms	920 KB	Output is correct
140	Correct	287 ms	844 KB	Output is correct
141	Correct	280 ms	1056 KB	Output is correct
142	Correct	541 ms	1580 KB	Output is correct
143	Correct	557 ms	1620 KB	Output is correct
144	Correct	561 ms	1656 KB	Output is correct
145	Correct	539 ms	1596 KB	Output is correct
146	Correct	569 ms	1516 KB	Output is correct
147	Correct	584 ms	1504 KB	Output is correct
148	Correct	558 ms	1580 KB	Output is correct
149	Correct	579 ms	1576 KB	Output is correct
150	Correct	561 ms	1504 KB	Output is correct
151	Correct	682 ms	1612 KB	Output is correct
152	Correct	674 ms	1540 KB	Output is correct
153	Correct	867 ms	1568 KB	Output is correct
154	Correct	898 ms	1580 KB	Output is correct
155	Correct	989 ms	1644 KB	Output is correct
156	Correct	1050 ms	1548 KB	Output is correct
157	Correct	907 ms	1576 KB	Output is correct
158	Correct	981 ms	1576 KB	Output is correct
159	Correct	706 ms	1680 KB	Output is correct
160	Correct	746 ms	1800 KB	Output is correct
161	Correct	806 ms	1648 KB	Output is correct
162	Correct	633 ms	1548 KB	Output is correct
163	Correct	742 ms	1580 KB	Output is correct
164	Correct	724 ms	1556 KB	Output is correct
165	Correct	637 ms	1580 KB	Output is correct
166	Correct	702 ms	1648 KB	Output is correct
167	Correct	704 ms	1584 KB	Output is correct

답안 #696744

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