답안 #666467

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
666467	2022-11-28T16:48:04 Z	finn__	Amusement Park (CEOI19_amusementpark)	C++17	42 / 100	227 ms	460 KB

amusementpark

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

#define MOD 998244353

int main()
{
    size_t n, m;
    cin >> n >> m;

    vector<vector<bool>> g(n, vector<bool>(n, 0));
    for (size_t i = 0; i < m; i++)
    {
        unsigned u, v;
        cin >> u >> v;
        g[u - 1][v - 1] = 1;
    }

    vector<int64_t> dp(1 << n, 0);
    dp[0] = 1;

    for (unsigned i = 1; i < 1 << n; i++)
    {
        unsigned const p = __builtin_popcount(i);
        vector<unsigned> s;
        for (unsigned k = 0; k < n; k++)
            if (i & (1 << k))
                s.push_back(k);

        for (unsigned j = 0; j < 1 << p; j++)
        {
            bool is_independent = 1;

            for (unsigned k = 0; k < p && is_independent; k++)
                if (j & (1 << k))
                    for (unsigned h = 0; h < p && is_independent; h++)
                        if (j & (1 << h))
                            if (g[s[k]][s[h]] || g[s[h]][s[k]])
                                is_independent = 0;

            if (is_independent)
            {
                unsigned t = 0;
                for (unsigned k = 0; k < p; k++)
                    if (j & (1 << k))
                        t ^= (1 << s[k]);

                assert(__builtin_popcount(t) == __builtin_popcount(j));

                dp[i] = (dp[i] +
                         ((__builtin_popcount(t) & 1) ? 1 : -1) * dp[i ^ t]) %
                        MOD;
            }
        }
    }

    cout << (dp[(1 << n) - 1] * m * 499122177) % MOD << '\n';
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:22:28: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   22 |     for (unsigned i = 1; i < 1 << n; i++)
      |                          ~~^~~~~~~~
amusementpark.cpp:30:32: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   30 |         for (unsigned j = 0; j < 1 << p; j++)
      |                              ~~^~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	300 KB	Output is correct
4	Correct	1 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	300 KB	Output is correct
8	Correct	0 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	0 ms	212 KB	Output is correct
3	Correct	1 ms	300 KB	Output is correct
4	Correct	1 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	300 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	300 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	300 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	212 KB	Output is correct
22	Correct	0 ms	212 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	0 ms	212 KB	Output is correct
3	Correct	1 ms	300 KB	Output is correct
4	Correct	1 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	300 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	300 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	300 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	212 KB	Output is correct
22	Correct	0 ms	212 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	300 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 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	300 KB	Output is correct
34	Correct	1 ms	212 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	1 ms	212 KB	Output is correct
39	Correct	2 ms	212 KB	Output is correct
40	Correct	2 ms	212 KB	Output is correct
41	Correct	2 ms	212 KB	Output is correct
42	Correct	2 ms	256 KB	Output is correct
43	Correct	2 ms	212 KB	Output is correct
44	Correct	2 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	3 ms	212 KB	Output is correct
49	Correct	1 ms	300 KB	Output is correct
50	Correct	2 ms	212 KB	Output is correct
51	Correct	2 ms	304 KB	Output is correct
52	Correct	6 ms	308 KB	Output is correct
53	Correct	4 ms	212 KB	Output is correct
54	Correct	4 ms	212 KB	Output is correct
55	Correct	3 ms	264 KB	Output is correct
56	Correct	3 ms	212 KB	Output is correct
57	Correct	2 ms	212 KB	Output is correct
58	Correct	2 ms	212 KB	Output is correct
59	Correct	2 ms	212 KB	Output is correct
60	Correct	2 ms	212 KB	Output is correct
61	Correct	6 ms	304 KB	Output is correct
62	Correct	4 ms	300 KB	Output is correct
63	Correct	4 ms	296 KB	Output is correct
64	Correct	5 ms	212 KB	Output is correct

Subtask #4
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	300 KB	Output is correct
4	Correct	1 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	300 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	300 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	300 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	212 KB	Output is correct
22	Correct	0 ms	212 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	300 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 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	300 KB	Output is correct
34	Correct	1 ms	212 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	1 ms	212 KB	Output is correct
39	Correct	2 ms	212 KB	Output is correct
40	Correct	2 ms	212 KB	Output is correct
41	Correct	2 ms	212 KB	Output is correct
42	Correct	2 ms	256 KB	Output is correct
43	Correct	2 ms	212 KB	Output is correct
44	Correct	2 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	3 ms	212 KB	Output is correct
49	Correct	1 ms	300 KB	Output is correct
50	Correct	2 ms	212 KB	Output is correct
51	Correct	2 ms	304 KB	Output is correct
52	Correct	6 ms	308 KB	Output is correct
53	Correct	4 ms	212 KB	Output is correct
54	Correct	4 ms	212 KB	Output is correct
55	Correct	3 ms	264 KB	Output is correct
56	Correct	3 ms	212 KB	Output is correct
57	Correct	2 ms	212 KB	Output is correct
58	Correct	2 ms	212 KB	Output is correct
59	Correct	2 ms	212 KB	Output is correct
60	Correct	2 ms	212 KB	Output is correct
61	Correct	6 ms	304 KB	Output is correct
62	Correct	4 ms	300 KB	Output is correct
63	Correct	4 ms	296 KB	Output is correct
64	Correct	5 ms	212 KB	Output is correct
65	Correct	227 ms	340 KB	Output is correct
66	Correct	186 ms	424 KB	Output is correct
67	Incorrect	175 ms	460 KB	Output isn't correct
68	Halted	0 ms	0 KB	-

Subtask #5
0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	300 KB	Output is correct
4	Correct	1 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	300 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	300 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	300 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	212 KB	Output is correct
22	Correct	0 ms	212 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	300 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 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	300 KB	Output is correct
34	Correct	1 ms	212 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	1 ms	212 KB	Output is correct
39	Correct	2 ms	212 KB	Output is correct
40	Correct	2 ms	212 KB	Output is correct
41	Correct	2 ms	212 KB	Output is correct
42	Correct	2 ms	256 KB	Output is correct
43	Correct	2 ms	212 KB	Output is correct
44	Correct	2 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	212 KB	Output is correct
48	Correct	3 ms	212 KB	Output is correct
49	Correct	1 ms	300 KB	Output is correct
50	Correct	2 ms	212 KB	Output is correct
51	Correct	2 ms	304 KB	Output is correct
52	Correct	6 ms	308 KB	Output is correct
53	Correct	4 ms	212 KB	Output is correct
54	Correct	4 ms	212 KB	Output is correct
55	Correct	3 ms	264 KB	Output is correct
56	Correct	3 ms	212 KB	Output is correct
57	Correct	2 ms	212 KB	Output is correct
58	Correct	2 ms	212 KB	Output is correct
59	Correct	2 ms	212 KB	Output is correct
60	Correct	2 ms	212 KB	Output is correct
61	Correct	6 ms	304 KB	Output is correct
62	Correct	4 ms	300 KB	Output is correct
63	Correct	4 ms	296 KB	Output is correct
64	Correct	5 ms	212 KB	Output is correct
65	Correct	227 ms	340 KB	Output is correct
66	Correct	186 ms	424 KB	Output is correct
67	Incorrect	175 ms	460 KB	Output isn't correct
68	Halted	0 ms	0 KB	-

답안 #666467

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 12.0 / 12.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 21.0

Subtask #5 0 / 37.0

Subtask #1
7.0 / 7.0

Subtask #2
12.0 / 12.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 21.0

Subtask #5
0 / 37.0