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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#737104#9561. 树数叔术ANIG5 786ms53848kbC++141.1kb2024-11-12 14:38:282024-11-12 14:38:28

Judging History

你现在查看的是最新测评结果

  • [2024-11-12 14:38:28]
  • 评测
  • 测评结果:5
  • 用时:786ms
  • 内存:53848kb
  • [2024-11-12 14:38:28]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N=155;
int n,m,mods,C[N][N],f[N][N][N],g[N][N][N],jc[N];
signed main(){
	cin>>n>>m>>mods;
	if(m>n){
		cout<<"0";
		return 0;
	}
	for(int i=0;i<=n;i++)C[i][0]=1;
	jc[0]=1;
	for(int i=1;i<=n;i++){
		jc[i]=jc[i-1]*i%mods;
		for(int j=1;j<=n;j++){
			C[i][j]=(C[i-1][j]+C[i-1][j-1])%mods;
		}
	}
	f[0][1][0]=n;
	for(int i=0;i<m;i++){
		for(int j=2;j<=n;j++){
			for(int k=0;k<=j;k++){
                for(int l=0;l+j<=n;l++)g[i][j+l][k]+=f[i][j][k]*C[l+j-2][j-2]%mods*C[n-j][l]%mods*jc[l]%mods;
				f[i+1][j][k]-=f[i][j][k];
			}
		}
		for(int j=2;j<=n;j++){
			for(int k=0;k<=j;k++){
				for(int r=0;r<=k;r++){
					f[i+1][j][k-r]+=g[i][j][k]*C[r][k]%mods;
				}
			}
		}
		for(int j=1;j<=n;j++){
			for(int k=0;k<=j;k++){
				f[i+1][j+1][k]+=f[i][j][k]*j%mods*(n-j)%mods;
				f[i+1][j+2][k+1]+=f[i][j][k]*(j-1)%mods*(n-j)%mods*(n-j-1)%mods;
			}
		}
		for(int j=1;j<=n;j++){
			for(int k=0;k<=j;k++){
				f[i+1][j][k]%=mods;
			}
		}
	}
	cout<<(f[m][n][0]+mods)%mods;
}

详细

Subtask #1:

score: 5
Accepted

Test #1:

score: 5
Accepted
time: 1ms
memory: 5608kb

input:

1 1 624295285

output:

0

result:

ok single line: '0'

Test #2:

score: 5
Accepted
time: 0ms
memory: 3552kb

input:

4 684813415 564954712

output:

0

result:

ok single line: '0'

Test #3:

score: 5
Accepted
time: 0ms
memory: 5712kb

input:

4 2 844826878

output:

24

result:

ok single line: '24'

Test #4:

score: 5
Accepted
time: 0ms
memory: 3564kb

input:

4 17724073 252218682

output:

0

result:

ok single line: '0'

Test #5:

score: 5
Accepted
time: 1ms
memory: 5716kb

input:

4 3 697681963

output:

384

result:

ok single line: '384'

Subtask #2:

score: 0
Wrong Answer

Test #6:

score: 0
Wrong Answer
time: 0ms
memory: 9876kb

input:

6 4 956647977

output:

221040

result:

wrong answer 1st lines differ - expected: '238320', found: '221040'

Subtask #3:

score: 0
Wrong Answer

Test #11:

score: 0
Wrong Answer
time: 10ms
memory: 16280kb

input:

48 26 424594716

output:

328348020

result:

wrong answer 1st lines differ - expected: '362283012', found: '328348020'

Subtask #4:

score: 0
Wrong Answer

Test #16:

score: 50
Accepted
time: 0ms
memory: 3628kb

input:

150 526250070 197316869

output:

0

result:

ok single line: '0'

Test #17:

score: 0
Wrong Answer
time: 786ms
memory: 53848kb

input:

149 116 671784452

output:

551491660

result:

wrong answer 1st lines differ - expected: '18945228', found: '551491660'