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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
#454718#8774. Manhattan Walkucup-team173AC ✓17ms10944kbC++20953b2024-06-25 11:00:142024-06-25 11:00:15

Judging History

你现在查看的是最新测评结果

  • [2024-06-25 11:00:15]
  • 评测
  • 测评结果:AC
  • 用时:17ms
  • 内存:10944kb
  • [2024-06-25 11:00:14]
  • 提交

answer

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

using i64 = long long;

signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    int r, c, p;
    cin >> r >> c >> p;
    vector<vector<double>> f(r, vector<double>(c));
    for(int i = r - 1; i >= 0; i--) {
        for(int j = c - 1; j >= 0; j--) {
            double a = -1, b = -1;
            if(i + 1 < r) {
                a = f[i + 1][j];
            }
            if(j + 1 < c) {
                b = f[i][j + 1];
            }
            if(a > b) swap(a, b);
            if(b == -1) continue;
            if(a == -1) {
                f[i][j] = b + p / 4.;
            } else if(b >= a + p) {
                f[i][j] = a + p / 4.;
            } else {
                f[i][j] = (p - (b - a)) / 2. / p * b + a / 2. + (b - a) / 2. / p * (a + b) / 2;
            }
        }
    }
    cout << setprecision(20) << f[0][0] << '\n';
    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3668kb

input:

2 3 8

output:

2.875

result:

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

Test #2:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

5 5 5

output:

2.4322338688738813772

result:

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

Test #3:

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

input:

1 1 1

output:

0

result:

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

Test #4:

score: 0
Accepted
time: 17ms
memory: 10928kb

input:

1000 1000 1000000000

output:

1782317138.8083772659

result:

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

Test #5:

score: 0
Accepted
time: 0ms
memory: 3984kb

input:

1 4 5

output:

3.75

result:

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

Test #6:

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

input:

4 1 5

output:

3.75

result:

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

Test #7:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

1 1 1000000000

output:

0

result:

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

Test #8:

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

input:

1 2 1000000000

output:

250000000

result:

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

Test #9:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

2 1 1000000000

output:

250000000

result:

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

Test #10:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

1 2 1

output:

0.25

result:

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

Test #11:

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

input:

2 1 1

output:

0.25

result:

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

Test #12:

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

input:

1 10 3

output:

6.75

result:

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

Test #13:

score: 0
Accepted
time: 0ms
memory: 3984kb

input:

10 1 3

output:

6.75

result:

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

Test #14:

score: 0
Accepted
time: 14ms
memory: 10944kb

input:

997 993 998244353

output:

1779941051.3461630344

result:

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

Test #15:

score: 0
Accepted
time: 6ms
memory: 5912kb

input:

988 313 886183312

output:

78753022570.483352661

result:

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

Test #16:

score: 0
Accepted
time: 3ms
memory: 4324kb

input:

583 286 322190846

output:

8636356976.8437137604

result:

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

Test #17:

score: 0
Accepted
time: 7ms
memory: 6496kb

input:

892 468 494964816

output:

17125998682.729249954

result:

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

Test #18:

score: 0
Accepted
time: 1ms
memory: 3764kb

input:

26 882 386682745

output:

78231677700.750396729

result:

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

Test #19:

score: 0
Accepted
time: 10ms
memory: 9400kb

input:

867 926 422131798

output:

945100500.39910674095

result:

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

Test #20:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

37 68 19

output:

62.284459880159033673

result:

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

Test #21:

score: 0
Accepted
time: 0ms
memory: 3788kb

input:

23 90 80

output:

860.05069873579100204

result:

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

Test #22:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

43 55 85

output:

118.38926796756420856

result:

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

Test #23:

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

input:

93 66 43

output:

97.904840858751114752

result:

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

Test #24:

score: 0
Accepted
time: 0ms
memory: 3740kb

input:

78 93 30

output:

44.845452326450605085

result:

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

Test #25:

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

input:

9 5 481032867

output:

400507342.36673825979

result:

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

Test #26:

score: 0
Accepted
time: 1ms
memory: 3968kb

input:

366 73 3

output:

149.48646423309600095

result:

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

Test #27:

score: 0
Accepted
time: 0ms
memory: 3680kb

input:

6 4 5

output:

2.8946451697287582938

result:

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

Test #28:

score: 0
Accepted
time: 0ms
memory: 3676kb

input:

8 10 5

output:

3.3973608524749079329

result:

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

Test #29:

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

input:

10 1 7

output:

15.75

result:

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

Test #30:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

10 7 10

output:

7.371646607394139572

result:

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

Test #31:

score: 0
Accepted
time: 0ms
memory: 3788kb

input:

2 8 1

output:

1.3271069194657820756

result:

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