| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 131094 |
2019-07-16T12:55:15 Z |
maruii |
Tents (JOI18_tents) |
C++14 |
|
157 ms |
21644 KB |
#include <bits/stdc++.h>
using namespace std;
const int mod = 1e9 + 7;
int A[3001][3001];
int f(int n, int m) {
if (n < 0 || m < 0) return 0;
if (!n || !m) return 1;
if (n > m) swap(n, m);
if (A[n][m]) return A[n][m];
return A[n][m] = (f(n, m - 1) + n * (n - 1) / 2ll * f(n - 2, m - 1) + 4ll * n * f(n - 1, m - 1) + 1ll * n * (m - 1) * f(n - 1, m - 2)) % mod;
}
int main() {
ios_base::sync_with_stdio(0), cin.tie(0);
int H, W; cin >> H >> W;
cout << f(H, W) - 1;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
380 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
3 ms |
632 KB |
Output is correct |
| 6 |
Correct |
3 ms |
760 KB |
Output is correct |
| 7 |
Correct |
3 ms |
760 KB |
Output is correct |
| 8 |
Correct |
3 ms |
632 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
4 ms |
1016 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
4 ms |
1656 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
380 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
3 ms |
632 KB |
Output is correct |
| 6 |
Correct |
3 ms |
760 KB |
Output is correct |
| 7 |
Correct |
3 ms |
760 KB |
Output is correct |
| 8 |
Correct |
3 ms |
632 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
4 ms |
1016 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
4 ms |
1656 KB |
Output is correct |
| 13 |
Correct |
2 ms |
504 KB |
Output is correct |
| 14 |
Correct |
2 ms |
504 KB |
Output is correct |
| 15 |
Correct |
148 ms |
18632 KB |
Output is correct |
| 16 |
Correct |
15 ms |
2560 KB |
Output is correct |
| 17 |
Correct |
47 ms |
6784 KB |
Output is correct |
| 18 |
Correct |
33 ms |
7288 KB |
Output is correct |
| 19 |
Correct |
157 ms |
20504 KB |
Output is correct |
| 20 |
Correct |
105 ms |
16324 KB |
Output is correct |
| 21 |
Correct |
76 ms |
12612 KB |
Output is correct |
| 22 |
Correct |
83 ms |
12960 KB |
Output is correct |
| 23 |
Correct |
69 ms |
7928 KB |
Output is correct |
| 24 |
Correct |
157 ms |
21644 KB |
Output is correct |
| 25 |
Correct |
109 ms |
17656 KB |
Output is correct |
| 26 |
Correct |
136 ms |
19988 KB |
Output is correct |
| 27 |
Correct |
149 ms |
21368 KB |
Output is correct |
