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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
#66486#5152. Circular Caramel Cookiekaruna#AC ✓5ms3760kbC++17511b2022-12-08 19:14:142022-12-08 19:14:15

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.
  • [2022-12-08 19:14:15]
  • 评测
  • 测评结果：AC
  • 用时：5ms
  • 内存：3760kb
查看
  • [2022-12-08 19:14:14]
  • 提交

answer

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

typedef long long ll;

ll func(ll R) {
    ll ans = 0;
    for (ll i = 1; i * i <= R; i++) {
        ans += floor(sqrt(R - i * i));
    }
    return ans * 4;
}
int main() {
    cin.tie(0); ios_base::sync_with_stdio(0);
    ll n; cin >> n;

    ll L = 0, R = 4'000'000'000ll;
    while (L < R) {
        ll M = (L + R) / 2;
        if (func(M) > n) R = M;
        else L = M + 1;
    }
    cout.precision(20);
    cout << fixed << sqrt(L);
}
源文件, 语言: C++17

详细

Test #1:

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

input:

11

output:

2.23606797749978980505

result:

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

Test #2:

score: 0
Accepted
time: 3ms
memory: 3760kb

input:

59

output:

5.00000000000000000000

result:

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

Test #3:

score: 0
Accepted
time: 3ms
memory: 3556kb

input:

1

output:

1.41421356237309514547

result:

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

Test #4:

score: 0
Accepted
time: 3ms
memory: 3560kb

input:

2

output:

1.41421356237309514547

result:

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

Test #5:

score: 0
Accepted
time: 3ms
memory: 3504kb

input:

3

output:

1.41421356237309514547

result:

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

Test #6:

score: 0
Accepted
time: 3ms
memory: 3620kb

input:

4

output:

2.23606797749978980505

result:

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

Test #7:

score: 0
Accepted
time: 5ms
memory: 3672kb

input:

1000000000

output:

17841.88131896409686305560

result:

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

Test #8:

score: 0
Accepted
time: 1ms
memory: 3592kb

input:

16

output:

3.16227766016837952279

result:

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

Test #9:

score: 0
Accepted
time: 1ms
memory: 3700kb

input:

60

output:

5.09901951359278449161

result:

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

Test #10:

score: 0
Accepted
time: 3ms
memory: 3592kb

input:

276

output:

10.04987562112088994581

result:

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

Test #11:

score: 0
Accepted
time: 5ms
memory: 3760kb

input:

476

output:

13.03840481040529830636

result:

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

Test #12:

score: 0
Accepted
time: 3ms
memory: 3672kb

input:

1860

output:

25.01999200639360765308

result:

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

Test #13:

score: 0
Accepted
time: 3ms
memory: 3704kb

input:

2837456

output:

951.00841216048138448969

result:

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

Test #14:

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

input:

871234652

output:

16653.64272464135865448043

result:

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

Test #15:

score: 0
Accepted
time: 2ms
memory: 3640kb

input:

345230848

output:

10483.50027424047038948629

result:

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

Test #16:

score: 0
Accepted
time: 5ms
memory: 3560kb

input:

506145784

output:

12693.59436881453257228713

result:

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

Test #17:

score: 0
Accepted
time: 1ms
memory: 3560kb

input:

253745836

output:

8987.84006310748736723326

result:

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

Test #18:

score: 0
Accepted
time: 5ms
memory: 3708kb

input:

659345872

output:

14487.74520068599304067902

result:

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

Test #19:

score: 0
Accepted
time: 4ms
memory: 3608kb

input:

193830482

output:

7855.44830038362579216482

result:

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

Test #20:

score: 0
Accepted
time: 1ms
memory: 3664kb

input:

981273

output:

559.50424484538098113262

result:

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

Test #21:

score: 0
Accepted
time: 3ms
memory: 3596kb

input:

8732419

output:

1667.85131231773766558035

result:

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

Test #22:

score: 0
Accepted
time: 3ms
memory: 3520kb

input:

9812379

output:

1767.94230675098674510082

result:

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

Test #23:

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

input:

98273476

output:

5593.61466316728001402225

result:

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

Test #24:

score: 0
Accepted
time: 5ms
memory: 3616kb

input:

897972343

output:

16907.24451233848958509043

result:

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

Test #25:

score: 0
Accepted
time: 1ms
memory: 3616kb

input:

28736734

output:

3025.06611497996846082970

result:

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

Test #26:

score: 0
Accepted
time: 1ms
memory: 3512kb

input:

88234239

output:

5300.23886254195167566650

result:

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

Test #27:

score: 0
Accepted
time: 1ms
memory: 3624kb

input:

928379434

output:

17191.11028991437706281431

result:

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

Test #28:

score: 0
Accepted
time: 3ms
memory: 3620kb

input:

23765822

output:

2751.07324511725801130524

result:

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

Test #29:

score: 0
Accepted
time: 2ms
memory: 3576kb

input:

3427481

output:

1045.14353081287367785990

result:

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

Test #30:

score: 0
Accepted
time: 4ms
memory: 3704kb

input:

234987432

output:

8649.26632726730167632923

result:

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

Test #31:

score: 0
Accepted
time: 1ms
memory: 3468kb

input:

3242949

output:

1016.64398881811132469011

result:

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

Test #32:

score: 0
Accepted
time: 1ms
memory: 3544kb

input:

238423423

output:

8712.26887785265716956928

result:

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

Test #33:

score: 0
Accepted
time: 3ms
memory: 3604kb

input:

23784378

output:

2752.14770679191542512854

result:

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

Test #34:

score: 0
Accepted
time: 1ms
memory: 3628kb

input:

83246355

output:

5148.27048628954617015552

result:

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