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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#846819#9561. 树数叔术Hthntd100 ✓477ms11196kbC++201.1kb2025-01-07 14:54:292025-01-07 14:54:30

Judging History

你现在查看的是最新测评结果

  • [2025-01-07 14:54:30]
  • 评测
  • 测评结果:100
  • 用时:477ms
  • 内存:11196kb
  • [2025-01-07 14:54:29]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int N = 155;
int n, v, mod, C[N][N], f[N][N][N];

ll quick_pow(ll x, int y){
	ll res = 1;
	while(y){
		if(y & 1) res = res * x % mod;
		x = x * x % mod;
		y >>= 1;
	}
	return res;
}

void pre(){
	for(int i = 0; i <= n; ++i){
		C[i][0] = 1;
		for(int j = 1; j <= i; ++j) C[i][j] = (C[i - 1][j - 1] + C[i - 1][j]) % mod;
	}
	return;
}

int main()
{
	cin >> n >> v >> mod;
	pre();
	if(v >= n){
		putchar('0');
		return 0;
	}
	for(int i = 2; i <= n; ++i) f[1][i][2] = 1;
	for(int i = 1; i < v; ++i){
		// #1
		for(int j = i + 1; j <= n; ++j)
			for(int k = 1; k <= j; ++k)
				for(int l = 0; j + l + 1 <= n; ++l) (f[i + 1][j + l + 1][k + 1] += 1ll * f[i][j][k] * j % mod) %= mod;
		// #2
		for(int j = i + 1; j <= n; ++j)
			for(int k = 1; k <= j; ++k)
				for(int l = 1; k + l <= j; ++l) (f[i + 1][j][k + l] += 1ll * f[i][j][k] * C[j - k][l] % mod) %= mod;
	}
	for(int i = 1; i <= n; ++i) f[v][n][n] = 1ll * f[v][n][n] * i % mod;
	cout << f[v][n][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: 3608kb

input:

1 1 624295285

output:

0

result:

ok single line: '0'

Test #2:

score: 5
Accepted
time: 0ms
memory: 3620kb

input:

4 684813415 564954712

output:

0

result:

ok single line: '0'

Test #3:

score: 5
Accepted
time: 0ms
memory: 3560kb

input:

4 2 844826878

output:

24

result:

ok single line: '24'

Test #4:

score: 5
Accepted
time: 0ms
memory: 3700kb

input:

4 17724073 252218682

output:

0

result:

ok single line: '0'

Test #5:

score: 5
Accepted
time: 0ms
memory: 3640kb

input:

4 3 697681963

output:

384

result:

ok single line: '384'

Subtask #2:

score: 15
Accepted

Test #6:

score: 15
Accepted
time: 0ms
memory: 3572kb

input:

6 4 956647977

output:

238320

result:

ok single line: '238320'

Test #7:

score: 15
Accepted
time: 0ms
memory: 3548kb

input:

6 450615260 491361886

output:

0

result:

ok single line: '0'

Test #8:

score: 15
Accepted
time: 0ms
memory: 3632kb

input:

6 5 339344353

output:

933120

result:

ok single line: '933120'

Test #9:

score: 15
Accepted
time: 0ms
memory: 3716kb

input:

6 3 842228619

output:

23760

result:

ok single line: '23760'

Test #10:

score: 15
Accepted
time: 0ms
memory: 3656kb

input:

6 5 331699652

output:

933120

result:

ok single line: '933120'

Subtask #3:

score: 30
Accepted

Test #11:

score: 30
Accepted
time: 4ms
memory: 4184kb

input:

48 26 424594716

output:

362283012

result:

ok single line: '362283012'

Test #12:

score: 30
Accepted
time: 0ms
memory: 3732kb

input:

49 1000000000 738885247

output:

0

result:

ok single line: '0'

Test #13:

score: 30
Accepted
time: 6ms
memory: 4488kb

input:

48 39 688951620

output:

598399200

result:

ok single line: '598399200'

Test #14:

score: 30
Accepted
time: 0ms
memory: 3728kb

input:

50 476039414 292870080

output:

0

result:

ok single line: '0'

Test #15:

score: 30
Accepted
time: 7ms
memory: 4592kb

input:

50 48 245196368

output:

123576912

result:

ok single line: '123576912'

Subtask #4:

score: 50
Accepted

Test #16:

score: 50
Accepted
time: 0ms
memory: 3656kb

input:

150 526250070 197316869

output:

0

result:

ok single line: '0'

Test #17:

score: 50
Accepted
time: 443ms
memory: 10756kb

input:

149 116 671784452

output:

18945228

result:

ok single line: '18945228'

Test #18:

score: 50
Accepted
time: 432ms
memory: 11024kb

input:

146 144 906402626

output:

438777234

result:

ok single line: '438777234'

Test #19:

score: 50
Accepted
time: 444ms
memory: 10736kb

input:

147 143 705666477

output:

70408701

result:

ok single line: '70408701'

Test #20:

score: 50
Accepted
time: 477ms
memory: 11196kb

input:

150 147 453481175

output:

336290325

result:

ok single line: '336290325'