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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
#427172#8774. Manhattan Walkucup-team2279#AC ✓13ms11860kbC++20468b2024-06-01 10:33:562024-06-01 10:33:57

Judging History

你现在查看的是最新测评结果

  • [2024-06-01 10:33:57]
  • 评测
  • 测评结果：AC
  • 用时：13ms
  • 内存：11860kb
查看
  • [2024-06-01 10:33:56]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
const int N=1005;
int n,m; double p;
double f[N][N];

int main(){
	cin>>n>>m>>p;
	f[1][1]=0;
	for(int i=2; i<=max(n,m); i++) 
		f[1][i]=f[i][1]=f[i-1][1]+p/4;
	for(int i=2; i<=n; i++)
		for(int j=2; j<=m; j++){
			auto a=f[i-1][j],b=f[i][j-1];
			if(a>b) swap(a,b);
			if(b-a<=p) f[i][j]=0.5*a+0.5*(b-a)/p*(a+(b-a)/2)+0.5*(p-b+a)/p*b;
			else f[i][j]=a+p/4;
		}
	printf("%.8lf\n",f[n][m]);
	return 0;
}
源文件, 语言: C++20

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3884kb

input:

2 3 8

output:

2.87500000

result:

ok found '2.8750000', expected '2.8750000', error '0.0000000'

Test #2:

score: 0
Accepted
time: 1ms
memory: 3888kb

input:

5 5 5

output:

2.43223387

result:

ok found '2.4322339', expected '2.4322339', error '0.0000000'

Test #3:

score: 0
Accepted
time: 1ms
memory: 3980kb

input:

1 1 1

output:

0.00000000

result:

ok found '0.0000000', expected '0.0000000', error '-0.0000000'

Test #4:

score: 0
Accepted
time: 10ms
memory: 11720kb

input:

1000 1000 1000000000

output:

1782317138.80837631

result:

ok found '1782317138.8083763', expected '1782317138.8083761', error '0.0000000'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3868kb

input:

1 4 5

output:

3.75000000

result:

ok found '3.7500000', expected '3.7500000', error '0.0000000'

Test #6:

score: 0
Accepted
time: 1ms
memory: 6036kb

input:

4 1 5

output:

3.75000000

result:

ok found '3.7500000', expected '3.7500000', error '0.0000000'

Test #7:

score: 0
Accepted
time: 0ms
memory: 3988kb

input:

1 1 1000000000

output:

0.00000000

result:

ok found '0.0000000', expected '0.0000000', error '-0.0000000'

Test #8:

score: 0
Accepted
time: 0ms
memory: 4056kb

input:

1 2 1000000000

output:

250000000.00000000

result:

ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'

Test #9:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

2 1 1000000000

output:

250000000.00000000

result:

ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'

Test #10:

score: 0
Accepted
time: 0ms
memory: 4052kb

input:

1 2 1

output:

0.25000000

result:

ok found '0.2500000', expected '0.2500000', error '0.0000000'

Test #11:

score: 0
Accepted
time: 0ms
memory: 4052kb

input:

2 1 1

output:

0.25000000

result:

ok found '0.2500000', expected '0.2500000', error '0.0000000'

Test #12:

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

input:

1 10 3

output:

6.75000000

result:

ok found '6.7500000', expected '6.7500000', error '0.0000000'

Test #13:

score: 0
Accepted
time: 1ms
memory: 4028kb

input:

10 1 3

output:

6.75000000

result:

ok found '6.7500000', expected '6.7500000', error '0.0000000'

Test #14:

score: 0
Accepted
time: 13ms
memory: 11860kb

input:

997 993 998244353

output:

1779941051.34616327

result:

ok found '1779941051.3461633', expected '1779941051.3461628', error '0.0000000'

Test #15:

score: 0
Accepted
time: 5ms
memory: 11276kb

input:

988 313 886183312

output:

78753022570.48339844

result:

ok found '78753022570.4833984', expected '78753022570.4833527', error '0.0000000'

Test #16:

score: 0
Accepted
time: 3ms
memory: 8812kb

input:

583 286 322190846

output:

8636356976.84371376

result:

ok found '8636356976.8437138', expected '8636356976.8437138', error '0.0000000'

Test #17:

score: 0
Accepted
time: 3ms
memory: 11512kb

input:

892 468 494964816

output:

17125998682.72924423

result:

ok found '17125998682.7292442', expected '17125998682.7292328', error '0.0000000'

Test #18:

score: 0
Accepted
time: 0ms
memory: 10980kb

input:

26 882 386682745

output:

78231677700.75044250

result:

ok found '78231677700.7504425', expected '78231677700.7504883', error '0.0000000'

Test #19:

score: 0
Accepted
time: 7ms
memory: 11068kb

input:

867 926 422131798

output:

945100500.39910734

result:

ok found '945100500.3991073', expected '945100500.3991071', error '0.0000000'

Test #20:

score: 0
Accepted
time: 1ms
memory: 4152kb

input:

37 68 19

output:

62.28445988

result:

ok found '62.2844599', expected '62.2844599', error '0.0000000'

Test #21:

score: 0
Accepted
time: 1ms
memory: 4356kb

input:

23 90 80

output:

860.05069874

result:

ok found '860.0506987', expected '860.0506987', error '0.0000000'

Test #22:

score: 0
Accepted
time: 1ms
memory: 4152kb

input:

43 55 85

output:

118.38926797

result:

ok found '118.3892680', expected '118.3892680', error '0.0000000'

Test #23:

score: 0
Accepted
time: 1ms
memory: 4404kb

input:

93 66 43

output:

97.90484086

result:

ok found '97.9048409', expected '97.9048409', error '0.0000000'

Test #24:

score: 0
Accepted
time: 0ms
memory: 4396kb

input:

78 93 30

output:

44.84545233

result:

ok found '44.8454523', expected '44.8454523', error '0.0000000'

Test #25:

score: 0
Accepted
time: 1ms
memory: 3948kb

input:

9 5 481032867

output:

400507342.36673832

result:

ok found '400507342.3667383', expected '400507342.3667384', error '0.0000000'

Test #26:

score: 0
Accepted
time: 1ms
memory: 8068kb

input:

366 73 3

output:

149.48646423

result:

ok found '149.4864642', expected '149.4864642', error '0.0000000'

Test #27:

score: 0
Accepted
time: 0ms
memory: 3936kb

input:

6 4 5

output:

2.89464517

result:

ok found '2.8946452', expected '2.8946452', error '0.0000000'

Test #28:

score: 0
Accepted
time: 1ms
memory: 3912kb

input:

8 10 5

output:

3.39736085

result:

ok found '3.3973609', expected '3.3973609', error '0.0000000'

Test #29:

score: 0
Accepted
time: 0ms
memory: 4012kb

input:

10 1 7

output:

15.75000000

result:

ok found '15.7500000', expected '15.7500000', error '0.0000000'

Test #30:

score: 0
Accepted
time: 0ms
memory: 3856kb

input:

10 7 10

output:

7.37164661

result:

ok found '7.3716466', expected '7.3716466', error '0.0000000'

Test #31:

score: 0
Accepted
time: 1ms
memory: 3892kb

input:

2 8 1

output:

1.32710692

result:

ok found '1.3271069', expected '1.3271069', error '0.0000000'
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