| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 798196 |
2023-07-30T13:14:59 Z |
vjudge1 |
Tents (JOI18_tents) |
C++14 |
|
59 ms |
70684 KB |
#include<bits/stdc++.h>
#define fi first
#define se second
#define ll long long
using namespace std ;
const ll N = 3000, mod = 1e9 + 7 ;
ll dp[N + 1][N + 1] ;
signed main()
{
ios_base::sync_with_stdio( 0 ) ;
cin.tie( 0 ) ;
cout.tie( 0 ) ;
ll n, m ;
cin >> n >> m ;
for(ll j = 0 ; j <= N ; j++)
dp[0][j] = dp[j][0] = 1 ;
for(ll i = 1 ; i <= n ; i++)
for(ll j = 1 ; j <= m ; j++)
{
dp[i][j] += dp[i - 1][j] ;
dp[i][j] += dp[i - 1][j - 1] * 4ll * j ;
if(j >= 2)
dp[i][j] += dp[i - 1][j - 2] * (j * (j - 1) / 2ll) ;
if(i >= 2)
dp[i][j] += dp[i - 2][j - 1] * (j * (i - 1)) ;
dp[i][j] %= mod ;
}
cout << (dp[n][m] - 1 + mod) % mod ;
return 0 ;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
12372 KB |
Output is correct |
| 2 |
Correct |
5 ms |
12372 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12356 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12484 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12500 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12628 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12616 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12500 KB |
Output is correct |
| 9 |
Correct |
5 ms |
12484 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12740 KB |
Output is correct |
| 11 |
Correct |
5 ms |
12500 KB |
Output is correct |
| 12 |
Correct |
5 ms |
13140 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
12372 KB |
Output is correct |
| 2 |
Correct |
5 ms |
12372 KB |
Output is correct |
| 3 |
Correct |
6 ms |
12356 KB |
Output is correct |
| 4 |
Correct |
5 ms |
12484 KB |
Output is correct |
| 5 |
Correct |
5 ms |
12500 KB |
Output is correct |
| 6 |
Correct |
5 ms |
12628 KB |
Output is correct |
| 7 |
Correct |
5 ms |
12616 KB |
Output is correct |
| 8 |
Correct |
5 ms |
12500 KB |
Output is correct |
| 9 |
Correct |
5 ms |
12484 KB |
Output is correct |
| 10 |
Correct |
5 ms |
12740 KB |
Output is correct |
| 11 |
Correct |
5 ms |
12500 KB |
Output is correct |
| 12 |
Correct |
5 ms |
13140 KB |
Output is correct |
| 13 |
Correct |
5 ms |
12492 KB |
Output is correct |
| 14 |
Correct |
5 ms |
12500 KB |
Output is correct |
| 15 |
Correct |
44 ms |
56092 KB |
Output is correct |
| 16 |
Correct |
8 ms |
15172 KB |
Output is correct |
| 17 |
Correct |
17 ms |
22208 KB |
Output is correct |
| 18 |
Correct |
16 ms |
24532 KB |
Output is correct |
| 19 |
Correct |
50 ms |
63304 KB |
Output is correct |
| 20 |
Correct |
41 ms |
53016 KB |
Output is correct |
| 21 |
Correct |
29 ms |
39200 KB |
Output is correct |
| 22 |
Correct |
38 ms |
38864 KB |
Output is correct |
| 23 |
Correct |
19 ms |
27092 KB |
Output is correct |
| 24 |
Correct |
59 ms |
70684 KB |
Output is correct |
| 25 |
Correct |
49 ms |
62808 KB |
Output is correct |
| 26 |
Correct |
53 ms |
67156 KB |
Output is correct |
| 27 |
Correct |
58 ms |
69220 KB |
Output is correct |
