#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;
int main() {
ios_base::sync_with_stdio(0), cin.tie(0);
int n, m;
cin >> n >> m;
int a[2 * n];
for (int i = 0; i < n; i++) {
a[i] = i + 1;
}
for (int i = 0; i < n; i++) {
a[i + n] = - (i + 1);
}
sort(a, a + 2 * n);
int cnt = 0;
do {
bool bad = 0;
for (int i = 0; i < 2 * n; i++) {
for (int j = i + 1; j < 2 * n; j++) {
if (abs(a[i]) == abs(a[j])) {
bad |= (j - i) % m == 0;
}
}
}
cnt += !bad;
} while(next_permutation(a, a + 2 * n));
cout << cnt << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
452 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
2 ms |
456 KB |
Output is correct |
8 |
Correct |
3 ms |
348 KB |
Output is correct |
9 |
Correct |
355 ms |
596 KB |
Output is correct |
10 |
Correct |
381 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
452 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
2 ms |
456 KB |
Output is correct |
8 |
Correct |
3 ms |
348 KB |
Output is correct |
9 |
Correct |
355 ms |
596 KB |
Output is correct |
10 |
Correct |
381 ms |
344 KB |
Output is correct |
11 |
Execution timed out |
1057 ms |
348 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
452 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
2 ms |
456 KB |
Output is correct |
8 |
Correct |
3 ms |
348 KB |
Output is correct |
9 |
Correct |
355 ms |
596 KB |
Output is correct |
10 |
Correct |
381 ms |
344 KB |
Output is correct |
11 |
Execution timed out |
1057 ms |
348 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
452 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
2 ms |
456 KB |
Output is correct |
8 |
Correct |
3 ms |
348 KB |
Output is correct |
9 |
Correct |
355 ms |
596 KB |
Output is correct |
10 |
Correct |
381 ms |
344 KB |
Output is correct |
11 |
Execution timed out |
1057 ms |
348 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
452 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
2 ms |
456 KB |
Output is correct |
8 |
Correct |
3 ms |
348 KB |
Output is correct |
9 |
Correct |
355 ms |
596 KB |
Output is correct |
10 |
Correct |
381 ms |
344 KB |
Output is correct |
11 |
Execution timed out |
1057 ms |
348 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |