답안 #936094

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
936094	2024-03-01T06:29:57 Z	a_l_i_r_e_z_a	Amusement Park (CEOI19_amusementpark)	C++17	42 / 100	7 ms	2648 KB

amusementpark

// In the name of God
// Hope is last to die

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

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define pb push_back
#define int long long
#define S second
#define F first
#define mp make_pair
#define smax(x, y) (x) = max((x), (y))
#define smin(x, y) (x) = min((x), (y))
#define all(x) (x).begin(), (x).end()

const int maxn = 18;
const int inf = 1e9 + 7, mod = 998244353;
int n, m, adj[maxn], dp[1ll << maxn];
bool is_val[1ll << maxn];

int32_t main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> m;
    for(int i = 0; i < m; i++){
        int u, v; cin >> u >> v;
        u--, v--;
        adj[u] += 1ll << v;
        adj[v] += 1ll << u;
    }
    is_val[0] = 1;
    for(int mask = 1; mask < (1ll << n); mask++){
        int i = __builtin_ctz(mask);
        if(is_val[mask - (1ll << i)] && (adj[i] & mask) == 0) is_val[mask] = 1;
    }
    dp[0] = 1;
    for(int mask = 1; mask < (1ll << n); mask++){
        for(int sm = mask; sm; sm = mask & (sm - 1)){
            if(is_val[sm]){
                if(__builtin_parity(sm)){
                    dp[mask] = (dp[mask] + dp[mask - sm]) % mod;
                }
                else{
                    dp[mask] = (dp[mask] - dp[mask - sm] + mod) % mod;
                }
            }
        }
    }
    cout << (((1ll * dp[(1ll << n) - 1] * m) * (mod + 1)) / 2) % mod << '\n';

    return 0;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2648 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	1 ms	2392 KB	Output is correct
7	Correct	1 ms	2392 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2648 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	1 ms	2392 KB	Output is correct
7	Correct	1 ms	2392 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	1 ms	2392 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct
21	Correct	1 ms	2392 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2648 KB	Output is correct
24	Correct	1 ms	2648 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2648 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	1 ms	2392 KB	Output is correct
7	Correct	1 ms	2392 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	1 ms	2392 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct
21	Correct	1 ms	2392 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2648 KB	Output is correct
24	Correct	1 ms	2648 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	0 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2392 KB	Output is correct
38	Correct	1 ms	2392 KB	Output is correct
39	Correct	1 ms	2392 KB	Output is correct
40	Correct	1 ms	2396 KB	Output is correct
41	Correct	0 ms	2396 KB	Output is correct
42	Correct	1 ms	2396 KB	Output is correct
43	Correct	1 ms	2392 KB	Output is correct
44	Correct	1 ms	2396 KB	Output is correct
45	Correct	1 ms	2508 KB	Output is correct
46	Correct	1 ms	2392 KB	Output is correct
47	Correct	0 ms	2396 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2392 KB	Output is correct
51	Correct	1 ms	2460 KB	Output is correct
52	Correct	1 ms	2392 KB	Output is correct
53	Correct	1 ms	2392 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2396 KB	Output is correct
59	Correct	1 ms	2396 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2392 KB	Output is correct
62	Correct	1 ms	2396 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct

Subtask #4
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2648 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	1 ms	2392 KB	Output is correct
7	Correct	1 ms	2392 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	1 ms	2392 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct
21	Correct	1 ms	2392 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2648 KB	Output is correct
24	Correct	1 ms	2648 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	0 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2392 KB	Output is correct
38	Correct	1 ms	2392 KB	Output is correct
39	Correct	1 ms	2392 KB	Output is correct
40	Correct	1 ms	2396 KB	Output is correct
41	Correct	0 ms	2396 KB	Output is correct
42	Correct	1 ms	2396 KB	Output is correct
43	Correct	1 ms	2392 KB	Output is correct
44	Correct	1 ms	2396 KB	Output is correct
45	Correct	1 ms	2508 KB	Output is correct
46	Correct	1 ms	2392 KB	Output is correct
47	Correct	0 ms	2396 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2392 KB	Output is correct
51	Correct	1 ms	2460 KB	Output is correct
52	Correct	1 ms	2392 KB	Output is correct
53	Correct	1 ms	2392 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2396 KB	Output is correct
59	Correct	1 ms	2396 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2392 KB	Output is correct
62	Correct	1 ms	2396 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct
65	Correct	7 ms	2392 KB	Output is correct
66	Correct	6 ms	2528 KB	Output is correct
67	Incorrect	6 ms	2396 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	2392 KB	Output is correct
2	Correct	1 ms	2392 KB	Output is correct
3	Correct	1 ms	2648 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	1 ms	2392 KB	Output is correct
7	Correct	1 ms	2392 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	0 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	1 ms	2392 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	0 ms	2396 KB	Output is correct
21	Correct	1 ms	2392 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2648 KB	Output is correct
24	Correct	1 ms	2648 KB	Output is correct
25	Correct	1 ms	2392 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2396 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	0 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2392 KB	Output is correct
38	Correct	1 ms	2392 KB	Output is correct
39	Correct	1 ms	2392 KB	Output is correct
40	Correct	1 ms	2396 KB	Output is correct
41	Correct	0 ms	2396 KB	Output is correct
42	Correct	1 ms	2396 KB	Output is correct
43	Correct	1 ms	2392 KB	Output is correct
44	Correct	1 ms	2396 KB	Output is correct
45	Correct	1 ms	2508 KB	Output is correct
46	Correct	1 ms	2392 KB	Output is correct
47	Correct	0 ms	2396 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2392 KB	Output is correct
51	Correct	1 ms	2460 KB	Output is correct
52	Correct	1 ms	2392 KB	Output is correct
53	Correct	1 ms	2392 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2396 KB	Output is correct
59	Correct	1 ms	2396 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2392 KB	Output is correct
62	Correct	1 ms	2396 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct
65	Correct	7 ms	2392 KB	Output is correct
66	Correct	6 ms	2528 KB	Output is correct
67	Incorrect	6 ms	2396 KB	Output isn't correct
68	Halted	0 ms	0 KB	-

답안 #936094

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