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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#717013#9561. 树数叔术thomaswmy100 ✓351ms4240kbC++14931b2024-11-06 16:38:032024-11-06 16:38:03

Judging History

你现在查看的是最新测评结果

  • [2024-11-06 16:38:03]
  • 评测
  • 测评结果:100
  • 用时:351ms
  • 内存:4240kb
  • [2024-11-06 16:38:03]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
const int N=160;
typedef long long ll;

int n,V,Mod;
int fac[N];
int C[N][N];
int f[2][N][N];

int main() {
	scanf("%d%d%d",&n,&V,&Mod);
	if(V>=n) {
		printf("0");
		return 0;
	}
	C[0][0]=1;
	fac[0]=1;
	for(int i=1;i<=n;i++) {
		C[i][0]=1;
		fac[i]=1ll*fac[i-1]*i%Mod;
		for(int j=1;j<=i;j++) C[i][j]=(C[i-1][j-1]+C[i-1][j])%Mod;
	}
	int now=0;
	f[0][1][1]=n;
	for(int i=1;i<=V;i++) {
		for(int j=1;j<=n;j++) for(int k=1;k<=j;k++) f[now^1][j][k]=0;
		for(int j=1;j<=n;j++) {
			for(int k=1;k<=j;k++) {
				if(!f[now][j][k]) continue;
				for(int p=k+1;p<=j;p++) {
					f[now^1][j][p]=(f[now^1][j][p]+1ll*f[now][j][k]*C[j-k][j-p]%Mod)%Mod;
				}
				for(int p=j+1;p<=n;p++) {
					f[now^1][p][k+1]=(f[now^1][p][k+1]+1ll*f[now][j][k]*C[n-j][n-p]%Mod*fac[p-j]%Mod*j%Mod)%Mod;
				}
			}
		}
		now^=1;
	}
	printf("%d",f[now][n][n]);
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 5
Accepted

Test #1:

score: 5
Accepted
time: 0ms
memory: 3784kb

input:

1 1 624295285

output:

0

result:

ok single line: '0'

Test #2:

score: 5
Accepted
time: 0ms
memory: 3828kb

input:

4 684813415 564954712

output:

0

result:

ok single line: '0'

Test #3:

score: 5
Accepted
time: 1ms
memory: 3952kb

input:

4 2 844826878

output:

24

result:

ok single line: '24'

Test #4:

score: 5
Accepted
time: 0ms
memory: 3708kb

input:

4 17724073 252218682

output:

0

result:

ok single line: '0'

Test #5:

score: 5
Accepted
time: 0ms
memory: 3956kb

input:

4 3 697681963

output:

384

result:

ok single line: '384'

Subtask #2:

score: 15
Accepted

Test #6:

score: 15
Accepted
time: 0ms
memory: 3756kb

input:

6 4 956647977

output:

238320

result:

ok single line: '238320'

Test #7:

score: 15
Accepted
time: 0ms
memory: 3840kb

input:

6 450615260 491361886

output:

0

result:

ok single line: '0'

Test #8:

score: 15
Accepted
time: 0ms
memory: 3912kb

input:

6 5 339344353

output:

933120

result:

ok single line: '933120'

Test #9:

score: 15
Accepted
time: 0ms
memory: 3920kb

input:

6 3 842228619

output:

23760

result:

ok single line: '23760'

Test #10:

score: 15
Accepted
time: 0ms
memory: 3896kb

input:

6 5 331699652

output:

933120

result:

ok single line: '933120'

Subtask #3:

score: 30
Accepted

Test #11:

score: 30
Accepted
time: 4ms
memory: 3928kb

input:

48 26 424594716

output:

362283012

result:

ok single line: '362283012'

Test #12:

score: 30
Accepted
time: 0ms
memory: 3760kb

input:

49 1000000000 738885247

output:

0

result:

ok single line: '0'

Test #13:

score: 30
Accepted
time: 4ms
memory: 4040kb

input:

48 39 688951620

output:

598399200

result:

ok single line: '598399200'

Test #14:

score: 30
Accepted
time: 0ms
memory: 3708kb

input:

50 476039414 292870080

output:

0

result:

ok single line: '0'

Test #15:

score: 30
Accepted
time: 4ms
memory: 3804kb

input:

50 48 245196368

output:

123576912

result:

ok single line: '123576912'

Subtask #4:

score: 50
Accepted

Test #16:

score: 50
Accepted
time: 0ms
memory: 3784kb

input:

150 526250070 197316869

output:

0

result:

ok single line: '0'

Test #17:

score: 50
Accepted
time: 341ms
memory: 4240kb

input:

149 116 671784452

output:

18945228

result:

ok single line: '18945228'

Test #18:

score: 50
Accepted
time: 315ms
memory: 4220kb

input:

146 144 906402626

output:

438777234

result:

ok single line: '438777234'

Test #19:

score: 50
Accepted
time: 320ms
memory: 4132kb

input:

147 143 705666477

output:

70408701

result:

ok single line: '70408701'

Test #20:

score: 50
Accepted
time: 351ms
memory: 4036kb

input:

150 147 453481175

output:

336290325

result:

ok single line: '336290325'