QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#741478#8774. Manhattan Walkydzr00000AC ✓16ms11740kbC++17798b2024-11-13 14:28:172024-11-13 14:28:19

Judging History

你现在查看的是最新测评结果

  • [2024-11-13 14:28:19]
  • 评测
  • 测评结果:AC
  • 用时:16ms
  • 内存:11740kb
  • [2024-11-13 14:28:17]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
double dp[1001][1001];
int main(){
    int r,c,p;
    cin>>r>>c>>p;
    for(int i=r;i>=1;i--)
        for(int j=c;j>=1;j--)
        {
            if(i==r&&j==c)
                dp[i][j]=0;
            else if(i==r)
                dp[i][j]=dp[i][j+1]+0.25*p;
            else if(j==c)
                dp[i][j]=dp[i+1][j]+0.25*p;
            else
            {
                double D=dp[i+1][j],R=dp[i][j+1];
                double mnv=min(D,R),mxv=max(D,R);
                if(mnv+p<mxv)
                    dp[i][j]=mnv+0.25*p;
                else
                    dp[i][j]=0.5*(mnv+(p-(mxv-mnv))*1.00/p*mxv+(mxv-mnv)*1.00/p*(mxv+mnv)*0.5);
            }
        }
    printf("%.12lf\n",dp[1][1]);
    
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3808kb

input:

2 3 8

output:

2.875000000000

result:

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

Test #2:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

5 5 5

output:

2.432233868874

result:

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

Test #3:

score: 0
Accepted
time: 0ms
memory: 3812kb

input:

1 1 1

output:

0.000000000000

result:

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

Test #4:

score: 0
Accepted
time: 16ms
memory: 11624kb

input:

1000 1000 1000000000

output:

1782317138.808377265930

result:

ok found '1782317138.8083773', expected '1782317138.8083761', error '0.0000000'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3864kb

input:

1 4 5

output:

3.750000000000

result:

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

Test #6:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

4 1 5

output:

3.750000000000

result:

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

Test #7:

score: 0
Accepted
time: 0ms
memory: 3816kb

input:

1 1 1000000000

output:

0.000000000000

result:

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

Test #8:

score: 0
Accepted
time: 0ms
memory: 3952kb

input:

1 2 1000000000

output:

250000000.000000000000

result:

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

Test #9:

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

input:

2 1 1000000000

output:

250000000.000000000000

result:

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

Test #10:

score: 0
Accepted
time: 0ms
memory: 3860kb

input:

1 2 1

output:

0.250000000000

result:

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

Test #11:

score: 0
Accepted
time: 0ms
memory: 3812kb

input:

2 1 1

output:

0.250000000000

result:

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

Test #12:

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

input:

1 10 3

output:

6.750000000000

result:

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

Test #13:

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

input:

10 1 3

output:

6.750000000000

result:

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

Test #14:

score: 0
Accepted
time: 15ms
memory: 11740kb

input:

997 993 998244353

output:

1779941051.346163034439

result:

ok found '1779941051.3461630', expected '1779941051.3461628', error '0.0000000'

Test #15:

score: 0
Accepted
time: 3ms
memory: 11256kb

input:

988 313 886183312

output:

78753022570.483352661133

result:

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

Test #16:

score: 0
Accepted
time: 3ms
memory: 10192kb

input:

583 286 322190846

output:

8636356976.843713760376

result:

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

Test #17:

score: 0
Accepted
time: 7ms
memory: 11036kb

input:

892 468 494964816

output:

17125998682.729249954224

result:

ok found '17125998682.7292500', expected '17125998682.7292328', error '0.0000000'

Test #18:

score: 0
Accepted
time: 1ms
memory: 6084kb

input:

26 882 386682745

output:

78231677700.750396728516

result:

ok found '78231677700.7503967', expected '78231677700.7504883', error '0.0000000'

Test #19:

score: 0
Accepted
time: 12ms
memory: 10584kb

input:

867 926 422131798

output:

945100500.399106740952

result:

ok found '945100500.3991067', expected '945100500.3991071', error '0.0000000'

Test #20:

score: 0
Accepted
time: 0ms
memory: 4032kb

input:

37 68 19

output:

62.284459880159

result:

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

Test #21:

score: 0
Accepted
time: 0ms
memory: 3968kb

input:

23 90 80

output:

860.050698735791

result:

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

Test #22:

score: 0
Accepted
time: 0ms
memory: 4108kb

input:

43 55 85

output:

118.389267967564

result:

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

Test #23:

score: 0
Accepted
time: 0ms
memory: 4156kb

input:

93 66 43

output:

97.904840858751

result:

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

Test #24:

score: 0
Accepted
time: 1ms
memory: 4172kb

input:

78 93 30

output:

44.845452326451

result:

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

Test #25:

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

input:

9 5 481032867

output:

400507342.366738259792

result:

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

Test #26:

score: 0
Accepted
time: 1ms
memory: 6412kb

input:

366 73 3

output:

149.486464233096

result:

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

Test #27:

score: 0
Accepted
time: 0ms
memory: 3904kb

input:

6 4 5

output:

2.894645169729

result:

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

Test #28:

score: 0
Accepted
time: 0ms
memory: 3780kb

input:

8 10 5

output:

3.397360852475

result:

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

Test #29:

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

input:

10 1 7

output:

15.750000000000

result:

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

Test #30:

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

input:

10 7 10

output:

7.371646607394

result:

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

Test #31:

score: 0
Accepted
time: 0ms
memory: 3864kb

input:

2 8 1

output:

1.327106919466

result:

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