| # |
제출 시각 |
아이디 |
문제 |
언어 |
결과 |
실행 시간 |
메모리 |
| 859503 |
2023-10-10T09:03:36 Z |
lucri |
NoM (RMI21_nom) |
C++17 |
|
92 ms |
63252 KB |
#include <bits/stdc++.h>
#define MOD 1000000007
using namespace std;
long long n,m,d[2010][2010],r[2010],fact[4010],im[4010],ans,comb[2010][2010];
long long putere(long long a,long long b)
{
if(b==0)
return 1;
long long m=putere(a,b/2);
m*=m;
m%=MOD;
if(b%2)
{
m*=a;
m%=MOD;
}
return m;
}
void factorial()
{
fact[0]=1;
for(int i=1;i<=4000;++i)
fact[i]=(fact[i-1]*i)%MOD;
for(int i=0;i<=4000;++i)
im[i]=putere(fact[i],MOD-2);
}
/*long long combinari(long long n,long long m)
{
long long ans=fact[n];
ans*=putere(fact[m],MOD-2);
ans%=MOD;
ans*=putere(fact[n-m],MOD-2);
ans%=MOD;
return ans;
}*/
long long aranjamente(long long n,long long m)
{
long long ans=fact[n];
ans*=im[n-m];
ans%=MOD;
return ans;
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
factorial();
cin>>n>>m;
for(int i=0;i<=n;++i)
{
comb[i][0]=comb[i][i]=1;
for(int j=1;j<i;++j)
comb[i][j]=(comb[i-1][j-1]+comb[i-1][j])%MOD;
}
d[0][0]=1;
for(int i=1;i<=2*n;++i)
++r[i%m];
r[m]=r[0];
for(int j=0;j<=n;++j)
for(int i=1;i<=m;++i)
for(int k=0;2*k<=r[i]&&k<=j;++k)
{
d[i][j]+=comb[j][k]*aranjamente(r[i],2*k)%MOD*d[i-1][j-k]%MOD;
if(d[i][j]>=MOD)
d[i][j]-=MOD;
}
for(int i=1;i<=n;++i)
{
ans+=((i-1)%2*2-1)*d[m][i]%MOD*fact[2*n-2*i]%MOD*comb[n][i]%MOD;
if(ans>=MOD)
ans-=MOD;
if(ans<0)
ans+=MOD;
}
ans+=fact[2*n];
if(ans>=MOD)
ans-=MOD;
cout<<ans;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
2 ms |
4608 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 16 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
2 ms |
4440 KB |
Output is correct |
| 18 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4560 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
2 ms |
4608 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 16 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
2 ms |
4440 KB |
Output is correct |
| 18 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4560 KB |
Output is correct |
| 20 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 21 |
Correct |
2 ms |
6660 KB |
Output is correct |
| 22 |
Correct |
4 ms |
7516 KB |
Output is correct |
| 23 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 24 |
Correct |
4 ms |
9048 KB |
Output is correct |
| 25 |
Correct |
3 ms |
7516 KB |
Output is correct |
| 26 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 27 |
Correct |
4 ms |
10076 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
2 ms |
4608 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 16 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
2 ms |
4440 KB |
Output is correct |
| 18 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4560 KB |
Output is correct |
| 20 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 21 |
Correct |
2 ms |
6660 KB |
Output is correct |
| 22 |
Correct |
4 ms |
7516 KB |
Output is correct |
| 23 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 24 |
Correct |
4 ms |
9048 KB |
Output is correct |
| 25 |
Correct |
3 ms |
7516 KB |
Output is correct |
| 26 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 27 |
Correct |
4 ms |
10076 KB |
Output is correct |
| 28 |
Correct |
5 ms |
12632 KB |
Output is correct |
| 29 |
Correct |
8 ms |
14940 KB |
Output is correct |
| 30 |
Correct |
10 ms |
17136 KB |
Output is correct |
| 31 |
Correct |
5 ms |
12812 KB |
Output is correct |
| 32 |
Correct |
9 ms |
17244 KB |
Output is correct |
| 33 |
Correct |
13 ms |
20056 KB |
Output is correct |
| 34 |
Correct |
19 ms |
25944 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
2 ms |
4608 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 15 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 16 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 17 |
Correct |
2 ms |
4440 KB |
Output is correct |
| 18 |
Correct |
2 ms |
4444 KB |
Output is correct |
| 19 |
Correct |
1 ms |
4560 KB |
Output is correct |
| 20 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 21 |
Correct |
2 ms |
6660 KB |
Output is correct |
| 22 |
Correct |
4 ms |
7516 KB |
Output is correct |
| 23 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 24 |
Correct |
4 ms |
9048 KB |
Output is correct |
| 25 |
Correct |
3 ms |
7516 KB |
Output is correct |
| 26 |
Correct |
2 ms |
6492 KB |
Output is correct |
| 27 |
Correct |
4 ms |
10076 KB |
Output is correct |
| 28 |
Correct |
5 ms |
12632 KB |
Output is correct |
| 29 |
Correct |
8 ms |
14940 KB |
Output is correct |
| 30 |
Correct |
10 ms |
17136 KB |
Output is correct |
| 31 |
Correct |
5 ms |
12812 KB |
Output is correct |
| 32 |
Correct |
9 ms |
17244 KB |
Output is correct |
| 33 |
Correct |
13 ms |
20056 KB |
Output is correct |
| 34 |
Correct |
19 ms |
25944 KB |
Output is correct |
| 35 |
Correct |
24 ms |
29208 KB |
Output is correct |
| 36 |
Correct |
64 ms |
56400 KB |
Output is correct |
| 37 |
Correct |
22 ms |
29020 KB |
Output is correct |
| 38 |
Correct |
43 ms |
40580 KB |
Output is correct |
| 39 |
Correct |
54 ms |
51460 KB |
Output is correct |
| 40 |
Correct |
92 ms |
63252 KB |
Output is correct |
