답안 #583533

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
583533	2022-06-25T14:08:45 Z	urd05	Amusement Park (CEOI19_amusementpark)	C++17	100 / 100	1890 ms	3568 KB

amusementpark

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

int n,m;
bool arr[18][18];
const int mod=998244353;
long long dp[262144];
int p[262144];

int main() {
    scanf("%d %d",&n,&m);
    for(int i=0;i<m;i++) {
        int u,v;
        scanf("%d %d",&u,&v);
        u--;
        v--;
        arr[u][v]=true;
    }
    memset(p,-1,sizeof(p));
    for(int i=0;i<(1<<n);i++) {
        int cnt=0;
        for(int j=0;j<n;j++) {
            if (i&(1<<j)) {
                cnt++;
            }
        }
        for(int j=0;j<n;j++) {
            for(int k=0;k<n;k++) {
                if (i&(1<<j)) {
                    if (i&(1<<k)) {
                        if (arr[j][k]||arr[k][j]) {
                            p[i]=0;
                            break;
                        }
                    }
                }
            }
        }
        if (cnt%2==1) {
            p[i]=(mod-p[i])%mod;
        }
        else {
            p[i]=(mod+p[i])%mod;
        }
    }
    dp[0]=1;
    for(int i=1;i<(1<<n);i++) {
        int msk=i;
        for(int j=i;j;j=((j-1)&i)) {
            dp[i]+=dp[j^i]*p[j];
            dp[i]%=mod;
        }
    }
    long long ret=dp[(1<<n)-1];
    ret*=m;
    ret%=mod;
    ret*=(mod+1)/2;
    ret%=mod;
    printf("%lld",ret);
    return 0;
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:48:13: warning: unused variable 'msk' [-Wunused-variable]
   48 |         int msk=i;
      |             ^~~
amusementpark.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%d %d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~
amusementpark.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         scanf("%d %d",&u,&v);
      |         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	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	1236 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	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	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	1236 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	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	3 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1320 KB	Output is correct
12	Correct	1 ms	1236 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	1236 KB	Output is correct
17	Correct	1 ms	1236 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	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	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	1236 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	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	3 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1320 KB	Output is correct
12	Correct	1 ms	1236 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	1236 KB	Output is correct
17	Correct	1 ms	1236 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	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 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	2 ms	1308 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	1236 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1236 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	1236 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	1236 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1236 KB	Output is correct
44	Correct	1 ms	1236 KB	Output is correct
45	Correct	1 ms	1236 KB	Output is correct
46	Correct	2 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1236 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	2 ms	1236 KB	Output is correct
51	Correct	1 ms	1236 KB	Output is correct
52	Correct	1 ms	1236 KB	Output is correct
53	Correct	1 ms	1236 KB	Output is correct
54	Correct	1 ms	1236 KB	Output is correct
55	Correct	1 ms	1236 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	1336 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	2 ms	1340 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1332 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	1 ms	1236 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	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	1236 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	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	3 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1320 KB	Output is correct
12	Correct	1 ms	1236 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	1236 KB	Output is correct
17	Correct	1 ms	1236 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	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 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	2 ms	1308 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	1236 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1236 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	1236 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	1236 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1236 KB	Output is correct
44	Correct	1 ms	1236 KB	Output is correct
45	Correct	1 ms	1236 KB	Output is correct
46	Correct	2 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1236 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	2 ms	1236 KB	Output is correct
51	Correct	1 ms	1236 KB	Output is correct
52	Correct	1 ms	1236 KB	Output is correct
53	Correct	1 ms	1236 KB	Output is correct
54	Correct	1 ms	1236 KB	Output is correct
55	Correct	1 ms	1236 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	1336 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	2 ms	1340 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1332 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	1 ms	1236 KB	Output is correct
65	Correct	26 ms	1452 KB	Output is correct
66	Correct	26 ms	1384 KB	Output is correct
67	Correct	26 ms	1452 KB	Output is correct
68	Correct	24 ms	1448 KB	Output is correct
69	Correct	24 ms	1424 KB	Output is correct
70	Correct	22 ms	1364 KB	Output is correct
71	Correct	24 ms	1452 KB	Output is correct
72	Correct	28 ms	1444 KB	Output is correct
73	Correct	23 ms	1364 KB	Output is correct
74	Correct	24 ms	1428 KB	Output is correct
75	Correct	25 ms	1420 KB	Output is correct
76	Correct	25 ms	1440 KB	Output is correct
77	Correct	73 ms	1452 KB	Output is correct
78	Correct	72 ms	1460 KB	Output is correct
79	Correct	72 ms	1780 KB	Output is correct
80	Correct	68 ms	1560 KB	Output is correct
81	Correct	73 ms	1520 KB	Output is correct
82	Correct	67 ms	1572 KB	Output is correct
83	Correct	68 ms	1520 KB	Output is correct
84	Correct	66 ms	1556 KB	Output is correct
85	Correct	71 ms	1524 KB	Output is correct
86	Correct	74 ms	1548 KB	Output is correct
87	Correct	75 ms	1612 KB	Output is correct
88	Correct	74 ms	1548 KB	Output is correct
89	Correct	65 ms	1564 KB	Output is correct
90	Correct	67 ms	1580 KB	Output is correct
91	Correct	67 ms	1564 KB	Output is correct
92	Correct	71 ms	1628 KB	Output is correct

Subtask #5
37.0 / 37.0

#	결과	실행 시간	메모리	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	1236 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	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	3 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1320 KB	Output is correct
12	Correct	1 ms	1236 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	1236 KB	Output is correct
17	Correct	1 ms	1236 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	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 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	2 ms	1308 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	1236 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1236 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	1236 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	1236 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1236 KB	Output is correct
44	Correct	1 ms	1236 KB	Output is correct
45	Correct	1 ms	1236 KB	Output is correct
46	Correct	2 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1236 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	2 ms	1236 KB	Output is correct
51	Correct	1 ms	1236 KB	Output is correct
52	Correct	1 ms	1236 KB	Output is correct
53	Correct	1 ms	1236 KB	Output is correct
54	Correct	1 ms	1236 KB	Output is correct
55	Correct	1 ms	1236 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	1336 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	2 ms	1340 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1332 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	1 ms	1236 KB	Output is correct
65	Correct	26 ms	1452 KB	Output is correct
66	Correct	26 ms	1384 KB	Output is correct
67	Correct	26 ms	1452 KB	Output is correct
68	Correct	24 ms	1448 KB	Output is correct
69	Correct	24 ms	1424 KB	Output is correct
70	Correct	22 ms	1364 KB	Output is correct
71	Correct	24 ms	1452 KB	Output is correct
72	Correct	28 ms	1444 KB	Output is correct
73	Correct	23 ms	1364 KB	Output is correct
74	Correct	24 ms	1428 KB	Output is correct
75	Correct	25 ms	1420 KB	Output is correct
76	Correct	25 ms	1440 KB	Output is correct
77	Correct	73 ms	1452 KB	Output is correct
78	Correct	72 ms	1460 KB	Output is correct
79	Correct	72 ms	1780 KB	Output is correct
80	Correct	68 ms	1560 KB	Output is correct
81	Correct	73 ms	1520 KB	Output is correct
82	Correct	67 ms	1572 KB	Output is correct
83	Correct	68 ms	1520 KB	Output is correct
84	Correct	66 ms	1556 KB	Output is correct
85	Correct	71 ms	1524 KB	Output is correct
86	Correct	74 ms	1548 KB	Output is correct
87	Correct	75 ms	1612 KB	Output is correct
88	Correct	74 ms	1548 KB	Output is correct
89	Correct	65 ms	1564 KB	Output is correct
90	Correct	67 ms	1580 KB	Output is correct
91	Correct	67 ms	1564 KB	Output is correct
92	Correct	71 ms	1628 KB	Output is correct
93	Correct	1636 ms	3424 KB	Output is correct
94	Correct	1623 ms	3540 KB	Output is correct
95	Correct	1814 ms	3296 KB	Output is correct
96	Correct	1637 ms	3352 KB	Output is correct
97	Correct	1890 ms	3296 KB	Output is correct
98	Correct	1703 ms	3356 KB	Output is correct
99	Correct	201 ms	1788 KB	Output is correct
100	Correct	203 ms	1824 KB	Output is correct
101	Correct	199 ms	1824 KB	Output is correct
102	Correct	204 ms	1724 KB	Output is correct
103	Correct	600 ms	2324 KB	Output is correct
104	Correct	612 ms	2408 KB	Output is correct
105	Correct	592 ms	2316 KB	Output is correct
106	Correct	653 ms	2324 KB	Output is correct
107	Correct	1768 ms	3356 KB	Output is correct
108	Correct	1772 ms	3268 KB	Output is correct
109	Correct	1705 ms	3424 KB	Output is correct
110	Correct	1678 ms	3472 KB	Output is correct
111	Correct	201 ms	1816 KB	Output is correct
112	Correct	191 ms	1720 KB	Output is correct
113	Correct	225 ms	1760 KB	Output is correct
114	Correct	202 ms	1820 KB	Output is correct
115	Correct	193 ms	1812 KB	Output is correct
116	Correct	204 ms	1792 KB	Output is correct
117	Correct	206 ms	1704 KB	Output is correct
118	Correct	192 ms	1872 KB	Output is correct
119	Correct	193 ms	1820 KB	Output is correct
120	Correct	200 ms	1740 KB	Output is correct
121	Correct	202 ms	1868 KB	Output is correct
122	Correct	555 ms	2464 KB	Output is correct
123	Correct	568 ms	2324 KB	Output is correct
124	Correct	568 ms	2404 KB	Output is correct
125	Correct	565 ms	2436 KB	Output is correct
126	Correct	562 ms	2308 KB	Output is correct
127	Correct	556 ms	2324 KB	Output is correct
128	Correct	546 ms	2460 KB	Output is correct
129	Correct	578 ms	2328 KB	Output is correct
130	Correct	542 ms	2392 KB	Output is correct
131	Correct	563 ms	2560 KB	Output is correct
132	Correct	614 ms	2456 KB	Output is correct
133	Correct	581 ms	2268 KB	Output is correct
134	Correct	555 ms	2352 KB	Output is correct
135	Correct	522 ms	2344 KB	Output is correct
136	Correct	535 ms	2220 KB	Output is correct
137	Correct	557 ms	2400 KB	Output is correct
138	Correct	550 ms	2336 KB	Output is correct
139	Correct	523 ms	2412 KB	Output is correct
140	Correct	544 ms	2332 KB	Output is correct
141	Correct	548 ms	2252 KB	Output is correct
142	Correct	1578 ms	3344 KB	Output is correct
143	Correct	1595 ms	3516 KB	Output is correct
144	Correct	1535 ms	3360 KB	Output is correct
145	Correct	1520 ms	3508 KB	Output is correct
146	Correct	1526 ms	3464 KB	Output is correct
147	Correct	1527 ms	3404 KB	Output is correct
148	Correct	1551 ms	3408 KB	Output is correct
149	Correct	1583 ms	3568 KB	Output is correct
150	Correct	1535 ms	3360 KB	Output is correct
151	Correct	1578 ms	3520 KB	Output is correct
152	Correct	1585 ms	3532 KB	Output is correct
153	Correct	1546 ms	3552 KB	Output is correct
154	Correct	1516 ms	3556 KB	Output is correct
155	Correct	1541 ms	3444 KB	Output is correct
156	Correct	1615 ms	3516 KB	Output is correct
157	Correct	1586 ms	3432 KB	Output is correct
158	Correct	1570 ms	3556 KB	Output is correct
159	Correct	1531 ms	3388 KB	Output is correct
160	Correct	1560 ms	3484 KB	Output is correct
161	Correct	1605 ms	3440 KB	Output is correct
162	Correct	1555 ms	3284 KB	Output is correct
163	Correct	1545 ms	3388 KB	Output is correct
164	Correct	1542 ms	3328 KB	Output is correct
165	Correct	1562 ms	3544 KB	Output is correct
166	Correct	1561 ms	3336 KB	Output is correct
167	Correct	1617 ms	3364 KB	Output is correct

답안 #583533

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