#include <bits/stdc++.h>
using namespace std;
const int N = 18 + 10,
M = 998'244'353;
int n, m;
int32_t main() {
cin.tie(0)->sync_with_stdio(0);
cin >> n >> m;
vector<int> a(m + 1), b(m + 1);
for (int i = 1; i <= m; ++i) cin >> a[i] >> b[i];
long long answer = 0;
vector<int> vt(n); iota(vt.begin(), vt.end(), 1);
unordered_map<long long, bool> mk;
do {
vector<int> p(n + 1);
for (int i = 0; i < n; ++i) p[vt[i]] = i;
long long mask = 0;
for (int i = 1; i <= m; ++i) if (p[a[i]] > p[b[i]]) mask |= (1 << i - 1);
if (!mk[mask]) {
answer += __builtin_popcount(mask);
mk[mask] = true;
}
} while (next_permutation(vt.begin(), vt.end()));
cout << answer % M << "\n";
}
Compilation message
amusementpark.cpp: In function 'int32_t main()':
amusementpark.cpp:24:73: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
24 | for (int i = 1; i <= m; ++i) if (p[a[i]] > p[b[i]]) mask |= (1 << i - 1);
| ~~^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
360 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
360 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
2 ms |
348 KB |
Output is correct |
33 |
Correct |
2 ms |
348 KB |
Output is correct |
34 |
Correct |
3 ms |
344 KB |
Output is correct |
35 |
Correct |
5 ms |
940 KB |
Output is correct |
36 |
Correct |
5 ms |
856 KB |
Output is correct |
37 |
Correct |
7 ms |
1464 KB |
Output is correct |
38 |
Correct |
9 ms |
1976 KB |
Output is correct |
39 |
Correct |
13 ms |
456 KB |
Output is correct |
40 |
Correct |
17 ms |
460 KB |
Output is correct |
41 |
Correct |
21 ms |
516 KB |
Output is correct |
42 |
Correct |
25 ms |
604 KB |
Output is correct |
43 |
Correct |
32 ms |
1624 KB |
Output is correct |
44 |
Correct |
40 ms |
2736 KB |
Output is correct |
45 |
Correct |
52 ms |
5312 KB |
Output is correct |
46 |
Correct |
70 ms |
10108 KB |
Output is correct |
47 |
Incorrect |
75 ms |
9936 KB |
Output isn't correct |
48 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
360 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
2 ms |
348 KB |
Output is correct |
33 |
Correct |
2 ms |
348 KB |
Output is correct |
34 |
Correct |
3 ms |
344 KB |
Output is correct |
35 |
Correct |
5 ms |
940 KB |
Output is correct |
36 |
Correct |
5 ms |
856 KB |
Output is correct |
37 |
Correct |
7 ms |
1464 KB |
Output is correct |
38 |
Correct |
9 ms |
1976 KB |
Output is correct |
39 |
Correct |
13 ms |
456 KB |
Output is correct |
40 |
Correct |
17 ms |
460 KB |
Output is correct |
41 |
Correct |
21 ms |
516 KB |
Output is correct |
42 |
Correct |
25 ms |
604 KB |
Output is correct |
43 |
Correct |
32 ms |
1624 KB |
Output is correct |
44 |
Correct |
40 ms |
2736 KB |
Output is correct |
45 |
Correct |
52 ms |
5312 KB |
Output is correct |
46 |
Correct |
70 ms |
10108 KB |
Output is correct |
47 |
Incorrect |
75 ms |
9936 KB |
Output isn't correct |
48 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
460 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
0 ms |
344 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
360 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
2 ms |
348 KB |
Output is correct |
33 |
Correct |
2 ms |
348 KB |
Output is correct |
34 |
Correct |
3 ms |
344 KB |
Output is correct |
35 |
Correct |
5 ms |
940 KB |
Output is correct |
36 |
Correct |
5 ms |
856 KB |
Output is correct |
37 |
Correct |
7 ms |
1464 KB |
Output is correct |
38 |
Correct |
9 ms |
1976 KB |
Output is correct |
39 |
Correct |
13 ms |
456 KB |
Output is correct |
40 |
Correct |
17 ms |
460 KB |
Output is correct |
41 |
Correct |
21 ms |
516 KB |
Output is correct |
42 |
Correct |
25 ms |
604 KB |
Output is correct |
43 |
Correct |
32 ms |
1624 KB |
Output is correct |
44 |
Correct |
40 ms |
2736 KB |
Output is correct |
45 |
Correct |
52 ms |
5312 KB |
Output is correct |
46 |
Correct |
70 ms |
10108 KB |
Output is correct |
47 |
Incorrect |
75 ms |
9936 KB |
Output isn't correct |
48 |
Halted |
0 ms |
0 KB |
- |