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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#379374#8027. Sky Gardencomeintocalm#AC ✓1ms3920kbC++17698b2024-04-06 17:19:532024-04-06 17:19:53

Judging History

This is the latest submission verdict.

  • [2024-04-06 17:19:53]
  • Judged
  • Verdict: AC
  • Time: 1ms
  • Memory: 3920kb
Show
  • [2024-04-06 17:19:53]
  • Submitted

answer

#include <bits/stdc++.h>

using db = long double;

constexpr db PI = acos(-1);

int main() {
    int n, m;
    std::cin >> n >> m;
    int t = (int)floor(2 * m / PI);
    db ans = m * n * (n + 1) * (m != 1);
    for (int i = 1; i <= n; ++i) {
        ans += (db)t * (1 + t) * PI * i;
        // printf("%.15Lf %.15Lf\n", (db)t * (1 + t) * PI / m, ans);
        ans += (db)(2 * m - 1 - 2 * t) * 2 * i * m;
        // printf("%.15Lf\n", ans);
        for (int j = i + 1; j <= n; ++j) {
            ans += (db)(j - i) * 4 * m * m;
            ans += (db)t * (1 + t) * PI * 2 * i;
            ans += (db)(2 * m - 1 - 2 * t) * 2 * i * 2 * m;
        }
    }
    printf("%.15Lf\n", ans);
    return 0;
}
Source code, Language: C++17

这程序好像有点Bug，我给组数据试试？

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3920kb

input:

1 2

output:

14.283185307179586

result:

ok found '14.2831853', expected '14.2831853', error '0.0000000'

Test #2:

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

input:

1 1

output:

2.000000000000000

result:

ok found '2.0000000', expected '2.0000000', error '0.0000000'

Test #3:

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

input:

500 1

output:

166916500.000000000000000

result:

ok found '166916500.0000000', expected '166916500.0000000', error '0.0000000'

Test #4:

score: 0
Accepted
time: 1ms
memory: 3864kb

input:

500 2

output:

763585309.561322474619374

result:

ok found '763585309.5613225', expected '763585309.5613225', error '0.0000000'

Test #5:

score: 0
Accepted
time: 1ms
memory: 3848kb

input:

500 499

output:

49125277129819.337818145751953

result:

ok found '49125277129819.3359375', expected '49125277129819.2734375', error '0.0000000'

Test #6:

score: 0
Accepted
time: 1ms
memory: 3872kb

input:

500 500

output:

49322369986259.838092803955078

result:

ok found '49322369986259.8359375', expected '49322369986259.6953125', error '0.0000000'

Test #7:

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

input:

252 139

output:

488838606007.179456532001495

result:

ok found '488838606007.1794434', expected '488838606007.1795654', error '0.0000000'

Test #8:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

96 359

output:

181277190205.037120521068573

result:

ok found '181277190205.0371094', expected '181277190205.0371094', error '0.0000000'

Test #9:

score: 0
Accepted
time: 1ms
memory: 3852kb

input:

237 487

output:

4992630041184.195981502532959

result:

ok found '4992630041184.1962891', expected '4992630041184.1953125', error '0.0000000'

Test #10:

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

input:

81 411

output:

142953582310.277360975742340

result:

ok found '142953582310.2773743', expected '142953582310.2773743', error '0.0000000'

Test #11:

score: 0
Accepted
time: 1ms
memory: 3872kb

input:

221 39

output:

25968641931.529713714495301

result:

ok found '25968641931.5297127', expected '25968641931.5297089', error '0.0000000'

Test #12:

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

input:

270 259

output:

2087014641700.021310329437256

result:

ok found '2087014641700.0212402', expected '2087014641700.0227051', error '0.0000000'

Test #13:

score: 0
Accepted
time: 1ms
memory: 3828kb

input:

422 387

output:

17770193032349.623716354370117

result:

ok found '17770193032349.6250000', expected '17770193032349.6250000', error '0.0000000'

Test #14:

score: 0
Accepted
time: 0ms
memory: 3820kb

input:

63 15

output:

89852047.508517057314748

result:

ok found '89852047.5085171', expected '89852047.5085171', error '0.0000000'

Test #15:

score: 0
Accepted
time: 1ms
memory: 3816kb

input:

407 439

output:

20515296102923.205890655517578

result:

ok found '20515296102923.2070312', expected '20515296102923.2070312', error '0.0000000'

Test #16:

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

input:

18 18

output:

3123573.695647555324740

result:

ok found '3123573.6956476', expected '3123573.6956476', error '0.0000000'

Test #17:

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

input:

171 146

output:

168786179167.019316971302032

result:

ok found '168786179167.0193176', expected '168786179167.0194092', error '0.0000000'

Test #18:

score: 0
Accepted
time: 1ms
memory: 3844kb

input:

311 70

output:

232875509505.274827376008034

result:

ok found '232875509505.2748413', expected '232875509505.2748413', error '0.0000000'

Test #19:

score: 0
Accepted
time: 1ms
memory: 3860kb

input:

155 494

output:

1439825967582.998713374137878

result:

ok found '1439825967582.9987793', expected '1439825967582.9992676', error '0.0000000'

Test #20:

score: 0
Accepted
time: 0ms
memory: 3836kb

input:

204 418

output:

2347066265474.488265752792358

result:

ok found '2347066265474.4882812', expected '2347066265474.4873047', error '0.0000000'

Test #21:

score: 0
Accepted
time: 1ms
memory: 3736kb

input:

344 46

output:

136054690372.271495066583157

result:

ok found '136054690372.2714996', expected '136054690372.2714844', error '0.0000000'

Test #22:

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

input:

188 174

output:

318429902145.042024195194244

result:

ok found '318429902145.0420532', expected '318429902145.0420532', error '0.0000000'

Test #23:

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

input:

137 394

output:

632896487876.031445145606995

result:

ok found '632896487876.0314941', expected '632896487876.0313721', error '0.0000000'

Test #24:

score: 0
Accepted
time: 1ms
memory: 3896kb

input:

481 22

output:

85020954588.203100726008415

result:

ok found '85020954588.2030945', expected '85020954588.2031097', error '0.0000000'

Test #25:

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

input:

30 446

output:

8705279441.352084750309587

result:

ok found '8705279441.3520851', expected '8705279441.3520851', error '0.0000000'

Test #26:

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

input:

204 440

output:

2600626525627.956685066223145

result:

ok found '2600626525627.9565430', expected '2600626525627.9575195', error '0.0000000'

Test #27:

score: 0
Accepted
time: 1ms
memory: 3856kb

input:

2 3

output:

175.415926535897931

result:

ok found '175.4159265', expected '175.4159265', error '0.0000000'

Extra Test:

score: 0
Extra Test Passed
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