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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#770714#8774. Manhattan Walkocharin#AC ✓13ms11008kbC++201.3kb2024-11-21 23:36:142024-11-21 23:36:15

Judging History

你现在查看的是最新测评结果

  • [2024-11-21 23:36:15]
  • 评测
  • 测评结果：AC
  • 用时：13ms
  • 内存：11008kb
查看
  • [2024-11-21 23:36:14]
  • 提交

answer

/*

                                _/                                      _/
       _/_/        _/_/_/      _/_/_/        _/_/_/      _/  _/_/               _/_/_/
    _/    _/    _/            _/    _/    _/    _/      _/_/          _/       _/    _/
   _/    _/    _/            _/    _/    _/    _/      _/            _/       _/    _/
    _/_/        _/_/_/      _/    _/      _/_/_/      _/            _/       _/    _/

*/
#include<bits/stdc++.h>
#define int long long

using namespace std;
const int mod=1e9+7,N=1e7+8;
const int inf=1e18;

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n,m,p;
    cin>>n>>m>>p;

    vector f(n+2,vector(m+2,1e18));
    f[n][m]=0;
    for(int i=n;i;--i){
        for(int j=m;j;--j){
            if(i==n && j==m) continue;
            else if(i==n){
                f[i][j]=f[i][j+1]+1.0L*p/4;
            }
            else if(j==m){
                f[i][j]=f[i+1][j]+1.0L*p/4;
            }
            else{
                double a=f[i+1][j],b=f[i][j+1];
                if(a>b) swap(a,b);
                if(b>a+p) f[i][j]=a+1.0L*p/4;
                else{
                    double t=b-a;
                    f[i][j]=(p-t)/2/p*b+a/2+(b-a)/2/p*(a+b)/2;
                }
            }
        }
    }
    cout<<fixed<<setprecision(15)<<f[1][1]<<"\n";
}
Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3824kb

input:

2 3 8

output:

2.875000000000000

result:

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

Test #2:

score: 0
Accepted
time: 1ms
memory: 3812kb

input:

5 5 5

output:

2.432233868873881

result:

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

Test #3:

score: 0
Accepted
time: 0ms
memory: 3852kb

input:

1 1 1

output:

0.000000000000000

result:

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

Test #4:

score: 0
Accepted
time: 13ms
memory: 10948kb

input:

1000 1000 1000000000

output:

1782317138.808377265930176

result:

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

Test #5:

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

input:

1 4 5

output:

3.750000000000000

result:

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

Test #6:

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

input:

4 1 5

output:

3.750000000000000

result:

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

Test #7:

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

input:

1 1 1000000000

output:

0.000000000000000

result:

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

Test #8:

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

input:

1 2 1000000000

output:

250000000.000000000000000

result:

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

Test #9:

score: 0
Accepted
time: 1ms
memory: 3944kb

input:

2 1 1000000000

output:

250000000.000000000000000

result:

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

Test #10:

score: 0
Accepted
time: 0ms
memory: 3832kb

input:

1 2 1

output:

0.250000000000000

result:

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

Test #11:

score: 0
Accepted
time: 0ms
memory: 3804kb

input:

2 1 1

output:

0.250000000000000

result:

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

Test #12:

score: 0
Accepted
time: 0ms
memory: 3872kb

input:

1 10 3

output:

6.750000000000000

result:

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

Test #13:

score: 0
Accepted
time: 0ms
memory: 4040kb

input:

10 1 3

output:

6.750000000000000

result:

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

Test #14:

score: 0
Accepted
time: 13ms
memory: 11008kb

input:

997 993 998244353

output:

1779941051.346163034439087

result:

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

Test #15:

score: 0
Accepted
time: 3ms
memory: 5768kb

input:

988 313 886183312

output:

78753022570.483352661132812

result:

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

Test #16:

score: 0
Accepted
time: 3ms
memory: 4524kb

input:

583 286 322190846

output:

8636356976.843713760375977

result:

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

Test #17:

score: 0
Accepted
time: 3ms
memory: 6672kb

input:

892 468 494964816

output:

17125998682.729249954223633

result:

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

Test #18:

score: 0
Accepted
time: 1ms
memory: 4192kb

input:

26 882 386682745

output:

78231677700.750396728515625

result:

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

Test #19:

score: 0
Accepted
time: 9ms
memory: 9392kb

input:

867 926 422131798

output:

945100500.399106740951538

result:

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

Test #20:

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

input:

37 68 19

output:

62.284459880159034

result:

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

Test #21:

score: 0
Accepted
time: 0ms
memory: 3832kb

input:

23 90 80

output:

860.050698735791002

result:

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

Test #22:

score: 0
Accepted
time: 0ms
memory: 3832kb

input:

43 55 85

output:

118.389267967564209

result:

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

Test #23:

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

input:

93 66 43

output:

97.904840858751115

result:

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

Test #24:

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

input:

78 93 30

output:

44.845452326450605

result:

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

Test #25:

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

input:

9 5 481032867

output:

400507342.366738259792328

result:

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

Test #26:

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

input:

366 73 3

output:

149.486464233096001

result:

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

Test #27:

score: 0
Accepted
time: 0ms
memory: 4072kb

input:

6 4 5

output:

2.894645169728758

result:

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

Test #28:

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

input:

8 10 5

output:

3.397360852474908

result:

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

Test #29:

score: 0
Accepted
time: 0ms
memory: 3940kb

input:

10 1 7

output:

15.750000000000000

result:

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

Test #30:

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

input:

10 7 10

output:

7.371646607394140

result:

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

Test #31:

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

input:

2 8 1

output:

1.327106919465782

result:

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