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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
#65969#5152. Circular Caramel Cookietriple__a#AC ✓7ms3592kbC++17622b2022-12-04 19:49:322022-12-04 19:49:35

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-12-04 19:49:35]
  • 评测
  • 测评结果：AC
  • 用时：7ms
  • 内存：3592kb
查看
  • [2022-12-04 19:49:32]
  • 提交

answer

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

const int N=500007;
const double EPS=1e-9;
int s;
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    cout.precision(15);
    cin>>s;
    double L=0, R=5e5;
    while (R-L>EPS){
        auto solve=[&](double fk){
            int ans=0;
            for (int i=1;i<=N;++i){
                if (i>fk) break;
                ans+=(int)(sqrt(fk*fk-i*i));
            }
            return ans*4;
        };
        double m1=(L+R)/2;
        if (solve(m1)>s) R=m1;
        else L=m1;
    }
    cout<<L;
}
源文件, 语言: C++17

詳細信息

Test #1:

score: 100
Accepted
time: 5ms
memory: 3408kb

input:

11

output:

2.23606797700171

result:

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

Test #2:

score: 0
Accepted
time: 3ms
memory: 3408kb

input:

59

output:

4.99999999981071

result:

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

Test #3:

score: 0
Accepted
time: 4ms
memory: 3460kb

input:

1

output:

1.41421356225635

result:

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

Test #4:

score: 0
Accepted
time: 4ms
memory: 3436kb

input:

2

output:

1.41421356225635

result:

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

Test #5:

score: 0
Accepted
time: 3ms
memory: 3500kb

input:

3

output:

1.41421356225635

result:

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

Test #6:

score: 0
Accepted
time: 1ms
memory: 3384kb

input:

4

output:

2.23606797700171

result:

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

Test #7:

score: 0
Accepted
time: 7ms
memory: 3584kb

input:

1000000000

output:

17841.8813189634

result:

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

Test #8:

score: 0
Accepted
time: 2ms
memory: 3460kb

input:

16

output:

3.16227765928545

result:

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

Test #9:

score: 0
Accepted
time: 4ms
memory: 3576kb

input:

60

output:

5.09901951328828

result:

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

Test #10:

score: 0
Accepted
time: 4ms
memory: 3580kb

input:

276

output:

10.049875620588

result:

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

Test #11:

score: 0
Accepted
time: 4ms
memory: 3592kb

input:

476

output:

13.0384048100396

result:

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

Test #12:

score: 0
Accepted
time: 4ms
memory: 3580kb

input:

1860

output:

25.0199920062144

result:

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

Test #13:

score: 0
Accepted
time: 4ms
memory: 3464kb

input:

2837456

output:

951.008412160448

result:

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

Test #14:

score: 0
Accepted
time: 6ms
memory: 3468kb

input:

871234652

output:

16653.6427246413

result:

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

Test #15:

score: 0
Accepted
time: 5ms
memory: 3408kb

input:

345230848

output:

10483.5002742396

result:

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

Test #16:

score: 0
Accepted
time: 6ms
memory: 3412kb

input:

506145784

output:

12693.5943688142

result:

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

Test #17:

score: 0
Accepted
time: 2ms
memory: 3524kb

input:

253745836

output:

8987.84006310738

result:

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

Test #18:

score: 0
Accepted
time: 5ms
memory: 3388kb

input:

659345872

output:

14487.745200686

result:

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

Test #19:

score: 0
Accepted
time: 2ms
memory: 3460kb

input:

193830482

output:

7855.44830038276

result:

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

Test #20:

score: 0
Accepted
time: 4ms
memory: 3520kb

input:

981273

output:

559.504244844966

result:

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

Test #21:

score: 0
Accepted
time: 3ms
memory: 3460kb

input:

8732419

output:

1667.85131231695

result:

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

Test #22:

score: 0
Accepted
time: 5ms
memory: 3592kb

input:

9812379

output:

1767.94230675092

result:

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

Test #23:

score: 0
Accepted
time: 3ms
memory: 3472kb

input:

98273476

output:

5593.61466316677

result:

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

Test #24:

score: 0
Accepted
time: 7ms
memory: 3528kb

input:

897972343

output:

16907.2445123382

result:

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

Test #25:

score: 0
Accepted
time: 6ms
memory: 3536kb

input:

28736734

output:

3025.06611497932

result:

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

Test #26:

score: 0
Accepted
time: 2ms
memory: 3432kb

input:

88234239

output:

5300.23886254138

result:

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

Test #27:

score: 0
Accepted
time: 6ms
memory: 3504kb

input:

928379434

output:

17191.1102899136

result:

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

Test #28:

score: 0
Accepted
time: 5ms
memory: 3472kb

input:

23765822

output:

2751.07324511659

result:

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

Test #29:

score: 0
Accepted
time: 5ms
memory: 3436kb

input:

3427481

output:

1045.14353081253

result:

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

Test #30:

score: 0
Accepted
time: 5ms
memory: 3404kb

input:

234987432

output:

8649.26632726704

result:

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

Test #31:

score: 0
Accepted
time: 4ms
memory: 3504kb

input:

3242949

output:

1016.64398881773

result:

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

Test #32:

score: 0
Accepted
time: 5ms
memory: 3576kb

input:

238423423

output:

8712.26887785248

result:

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

Test #33:

score: 0
Accepted
time: 2ms
memory: 3520kb

input:

23784378

output:

2752.14770679177

result:

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

Test #34:

score: 0
Accepted
time: 5ms
memory: 3400kb

input:

83246355

output:

5148.27048628952

result:

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