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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
#201843#5152. Circular Caramel Cookiesalvator_noster#AC ✓10ms3848kbC++20615b2023-10-05 17:00:482023-10-05 17:00:48

Judging History

你现在查看的是最新测评结果

  • [2023-10-05 17:00:48]
  • 评测
  • 测评结果：AC
  • 用时：10ms
  • 内存：3848kb
查看
  • [2023-10-05 17:00:48]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;
typedef double f64;

long long calc(f64 r) {
    long long res = 0;
    const f64 r2 = r * r;
    for (int l = 1; l < r; ) {
        int cnt = floor(sqrt(r2 - l * l));
        int nxt = floor(sqrt(r2 - cnt * cnt));
        res += 4ll * (nxt - l + 1) * cnt;
        l = nxt + 1;
    }
    return res;
}

int main() {
    int s;
    scanf("%d", &s);
    double l = 0, r = 1e9;
    while (r - l > 1e-7) {
        f64 mid = (l + r) / 2;
        if (calc(mid) <= s) l = mid;
        else r = mid;
    }
    printf("%.10lf\n", l);
    return 0;
}
源文件, 语言: C++20

詳細信息

Test #1:

score: 100
Accepted
time: 2ms
memory: 3848kb

input:

11

output:

2.2360679419

result:

ok found '2.2360679', expected '2.2360680', error '0.0000000'

Test #2:

score: 0
Accepted
time: 2ms
memory: 3804kb

input:

59

output:

4.9999999696

result:

ok found '5.0000000', expected '5.0000000', error '0.0000000'

Test #3:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

1

output:

1.4142135241

result:

ok found '1.4142135', expected '1.4142136', error '0.0000000'

Test #4:

score: 0
Accepted
time: 2ms
memory: 3836kb

input:

2

output:

1.4142135241

result:

ok found '1.4142135', expected '1.4142136', error '0.0000000'

Test #5:

score: 0
Accepted
time: 1ms
memory: 3732kb

input:

3

output:

1.4142135241

result:

ok found '1.4142135', expected '1.4142136', error '0.0000000'

Test #6:

score: 0
Accepted
time: 1ms
memory: 3620kb

input:

4

output:

2.2360679419

result:

ok found '2.2360679', expected '2.2360680', error '0.0000000'

Test #7:

score: 0
Accepted
time: 10ms
memory: 3844kb

input:

1000000000

output:

17841.8813189252

result:

ok found '17841.8813189', expected '17841.8813190', error '0.0000000'

Test #8:

score: 0
Accepted
time: 2ms
memory: 3848kb

input:

16

output:

3.1622776064

result:

ok found '3.1622776', expected '3.1622777', error '0.0000000'

Test #9:

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

input:

60

output:

5.0990194844

result:

ok found '5.0990195', expected '5.0990195', error '0.0000000'

Test #10:

score: 0
Accepted
time: 2ms
memory: 3696kb

input:

276

output:

10.0498755984

result:

ok found '10.0498756', expected '10.0498756', error '0.0000000'

Test #11:

score: 0
Accepted
time: 2ms
memory: 3844kb

input:

476

output:

13.0384048003

result:

ok found '13.0384048', expected '13.0384048', error '0.0000000'

Test #12:

score: 0
Accepted
time: 1ms
memory: 3608kb

input:

1860

output:

25.0199919671

result:

ok found '25.0199920', expected '25.0199920', error '0.0000000'

Test #13:

score: 0
Accepted
time: 2ms
memory: 3572kb

input:

2837456

output:

951.0084121311

result:

ok found '951.0084121', expected '951.0084122', error '0.0000000'

Test #14:

score: 0
Accepted
time: 10ms
memory: 3808kb

input:

871234652

output:

16653.6427246289

result:

ok found '16653.6427246', expected '16653.6427246', error '0.0000000'

Test #15:

score: 0
Accepted
time: 7ms
memory: 3696kb

input:

345230848

output:

10483.5002742165

result:

ok found '10483.5002742', expected '10483.5002742', error '0.0000000'

Test #16:

score: 0
Accepted
time: 8ms
memory: 3740kb

input:

506145784

output:

12693.5943687845

result:

ok found '12693.5943688', expected '12693.5943688', error '0.0000000'

Test #17:

score: 0
Accepted
time: 6ms
memory: 3628kb

input:

253745836

output:

8987.8400630905

result:

ok found '8987.8400631', expected '8987.8400631', error '0.0000000'

Test #18:

score: 0
Accepted
time: 9ms
memory: 3732kb

input:

659345872

output:

14487.7452006309

result:

ok found '14487.7452006', expected '14487.7452007', error '0.0000000'

Test #19:

score: 0
Accepted
time: 6ms
memory: 3668kb

input:

193830482

output:

7855.4483003423

result:

ok found '7855.4483003', expected '7855.4483004', error '0.0000000'

Test #20:

score: 0
Accepted
time: 2ms
memory: 3608kb

input:

981273

output:

559.5042448236

result:

ok found '559.5042448', expected '559.5042448', error '0.0000000'

Test #21:

score: 0
Accepted
time: 2ms
memory: 3688kb

input:

8732419

output:

1667.8513122814

result:

ok found '1667.8513123', expected '1667.8513123', error '0.0000000'

Test #22:

score: 0
Accepted
time: 2ms
memory: 3840kb

input:

9812379

output:

1767.9423067185

result:

ok found '1767.9423067', expected '1767.9423068', error '0.0000000'

Test #23:

score: 0
Accepted
time: 4ms
memory: 3840kb

input:

98273476

output:

5593.6146631241

result:

ok found '5593.6146631', expected '5593.6146632', error '0.0000000'

Test #24:

score: 0
Accepted
time: 10ms
memory: 3632kb

input:

897972343

output:

16907.2445123097

result:

ok found '16907.2445123', expected '16907.2445123', error '0.0000000'

Test #25:

score: 0
Accepted
time: 3ms
memory: 3840kb

input:

28736734

output:

3025.0661149367

result:

ok found '3025.0661149', expected '3025.0661150', error '0.0000000'

Test #26:

score: 0
Accepted
time: 4ms
memory: 3728kb

input:

88234239

output:

5300.2388625267

result:

ok found '5300.2388625', expected '5300.2388625', error '0.0000000'

Test #27:

score: 0
Accepted
time: 10ms
memory: 3712kb

input:

928379434

output:

17191.1102898603

result:

ok found '17191.1102899', expected '17191.1102899', error '0.0000000'

Test #28:

score: 0
Accepted
time: 3ms
memory: 3732kb

input:

23765822

output:

2751.0732450997

result:

ok found '2751.0732451', expected '2751.0732451', error '0.0000000'

Test #29:

score: 0
Accepted
time: 2ms
memory: 3848kb

input:

3427481

output:

1045.1435307757

result:

ok found '1045.1435308', expected '1045.1435308', error '0.0000000'

Test #30:

score: 0
Accepted
time: 3ms
memory: 3728kb

input:

234987432

output:

8649.2663272653

result:

ok found '8649.2663273', expected '8649.2663273', error '0.0000000'

Test #31:

score: 0
Accepted
time: 2ms
memory: 3740kb

input:

3242949

output:

1016.6439887715

result:

ok found '1016.6439888', expected '1016.6439888', error '0.0000000'

Test #32:

score: 0
Accepted
time: 3ms
memory: 3696kb

input:

238423423

output:

8712.2688778307

result:

ok found '8712.2688778', expected '8712.2688779', error '0.0000000'

Test #33:

score: 0
Accepted
time: 3ms
memory: 3624kb

input:

23784378

output:

2752.1477067860

result:

ok found '2752.1477068', expected '2752.1477068', error '0.0000000'

Test #34:

score: 0
Accepted
time: 4ms
memory: 3844kb

input:

83246355

output:

5148.2704862549

result:

ok found '5148.2704863', expected '5148.2704863', error '0.0000000'
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