| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 707757 |
2023-03-10T03:54:22 Z |
ToroTN |
Tents (JOI18_tents) |
C++14 |
|
392 ms |
70876 KB |
#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll n,m,dp[3005][3005],MOD=1e9+7;
int main()
{
ios_base::sync_with_stdio(0),cin.tie(0);
cin >> n >> m;
for(int i=0;i<=n;i++)dp[i][0]=1;
for(int i=0;i<=m;i++)dp[0][i]=1;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=m;j++)
{
dp[i][j]+=(dp[i-1][j-1]*(ll)4*j)%MOD;
dp[i][j]%=MOD;
if(j>=2)dp[i][j]+=(dp[i-1][j-2]*((ll)j*(j-1)/2))%MOD;
dp[i][j]%=MOD;
if(i>=2)dp[i][j]+=(dp[i-2][j-1]*(ll)(i-1)*j)%MOD;
dp[i][j]%=MOD;
dp[i][j]+=dp[i-1][j];
dp[i][j]%=MOD;
}
}
printf("%lld\n",(dp[n][m]-1+MOD)%MOD);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
468 KB |
Output is correct |
| 4 |
Correct |
1 ms |
1108 KB |
Output is correct |
| 5 |
Correct |
1 ms |
708 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
852 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
724 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1748 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2132 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
468 KB |
Output is correct |
| 4 |
Correct |
1 ms |
1108 KB |
Output is correct |
| 5 |
Correct |
1 ms |
708 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
852 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
724 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1748 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2132 KB |
Output is correct |
| 13 |
Correct |
1 ms |
328 KB |
Output is correct |
| 14 |
Correct |
5 ms |
9672 KB |
Output is correct |
| 15 |
Correct |
265 ms |
55180 KB |
Output is correct |
| 16 |
Correct |
17 ms |
4180 KB |
Output is correct |
| 17 |
Correct |
56 ms |
12736 KB |
Output is correct |
| 18 |
Correct |
68 ms |
16988 KB |
Output is correct |
| 19 |
Correct |
289 ms |
62920 KB |
Output is correct |
| 20 |
Correct |
252 ms |
50876 KB |
Output is correct |
| 21 |
Correct |
150 ms |
33804 KB |
Output is correct |
| 22 |
Correct |
147 ms |
35404 KB |
Output is correct |
| 23 |
Correct |
92 ms |
26988 KB |
Output is correct |
| 24 |
Correct |
392 ms |
70876 KB |
Output is correct |
| 25 |
Correct |
298 ms |
61260 KB |
Output is correct |
| 26 |
Correct |
359 ms |
66712 KB |
Output is correct |
| 27 |
Correct |
370 ms |
68944 KB |
Output is correct |
