| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 961063 |
2024-04-11T13:09:31 Z |
simona1230 |
Tents (JOI18_tents) |
C++17 |
|
71 ms |
70844 KB |
#include <bits/stdc++.h>
using namespace std;
const long long mod=1e9+7;
long long n,m;
long long dp[3001][3001];
void solve()
{
cin>>n>>m;
dp[0][0]=1;
for(long long i=1;i<=n;i++)
dp[i][0]=1;
for(long long i=1;i<=m;i++)
dp[0][i]=1;
for(long long i=1;i<=n;i++)
{
for(long long j=1;j<=m;j++)
{
dp[i][j]=dp[i-1][j];
dp[i][j]%=mod;
if(i>=2)dp[i][j]+=dp[i-2][j-1]*j*(i-1);
dp[i][j]%=mod;
if(j>=2)dp[i][j]+=dp[i-1][j-2]*(j-1)*j/2;
dp[i][j]%=mod;
dp[i][j]+=dp[i-1][j-1]*j*4;
dp[i][j]%=mod;
//cout<<i<<" "<<j<<" "<<dp[i][j]<<endl;
}
}
cout<<dp[n][m]-1<<endl;
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
solve();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 4 |
Correct |
1 ms |
6492 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
6492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 10 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
2 ms |
8540 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 4 |
Correct |
1 ms |
6492 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
6492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 10 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
2 ms |
8540 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
20 ms |
55876 KB |
Output is correct |
| 15 |
Correct |
54 ms |
66140 KB |
Output is correct |
| 16 |
Correct |
5 ms |
6488 KB |
Output is correct |
| 17 |
Correct |
12 ms |
16988 KB |
Output is correct |
| 18 |
Correct |
15 ms |
29140 KB |
Output is correct |
| 19 |
Correct |
56 ms |
70236 KB |
Output is correct |
| 20 |
Correct |
48 ms |
58052 KB |
Output is correct |
| 21 |
Correct |
29 ms |
39512 KB |
Output is correct |
| 22 |
Correct |
31 ms |
51800 KB |
Output is correct |
| 23 |
Correct |
24 ms |
70488 KB |
Output is correct |
| 24 |
Correct |
71 ms |
70844 KB |
Output is correct |
| 25 |
Correct |
53 ms |
62176 KB |
Output is correct |
| 26 |
Correct |
58 ms |
68188 KB |
Output is correct |
| 27 |
Correct |
67 ms |
70384 KB |
Output is correct |
