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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
#201386	#5151. Bottle Flip	salvator_noster^#	AC ✓	1ms	3852kb	C++14	1.0kb	2023-10-05 14:03:42	2023-10-05 14:03:42

Judging History

你现在查看的是最新测评结果

[2023-10-05 14:03:42]
评测

测评结果：AC
用时：1ms
内存：3852kb

查看

[2023-10-05 14:03:42]
提交

answer

#include <bits/stdc++.h>

using namespace std;

typedef double db;

db h, r, da, dw;

db calc(db t) {
    db t1 = t * t / 2 * dw + (h * h - t * t) / 2 * da;
    db t2 = t * dw + (h - t) * da;
    return t1 / t2;
}

int main(void) {
    scanf("%lf%lf%lf%lf", &h, &r, &da, &dw);
    double t1 = h * h * da * da / (dw - da) / (dw - da);
    double t2 = h * h * da / (dw - da);
    double t3 = sqrt(t1 + t2);
    double t4 = h * da / (dw - da);
    double t = t3 - t4;
    printf("%.10f\n", t);
    // db le = 0.0, ri = r, ans = -1;
    // for (int i = 1; i <= 10; ++i) {
    //     ans = (le + ri) / 2;
    //     db step = (ri - le) / 3;
    //     db t1 = le + step, t2 = ri - step;
    //     db num1 = calc(t1), num2 = calc(t2);
    //     printf("t1 = %lf, t2 = %lf, num1 = %lf, num2 = %lf\n", t1, t2, num1,
    //            num2);
    //     if (num1 < num2) {
    //         ri = t2;
    //     } else {
    //         le = t1;
    //     }
    // }
    // printf("%.10f\n", ans);
    return 0;
}

源文件, 语言: C++14

詳細信息

Test #1:

score: 100

Accepted

time: 1ms

memory: 3844kb

input:

22 4 1 4

output:

7.3333333333

result:

ok found '7.3333333', expected '7.3333333', error '0.0000000'

Test #2:

score: 0

Accepted

time: 0ms

memory: 3728kb

input:

7 2 655 988

output:

3.1415941720

result:

ok found '3.1415942', expected '3.1415942', error '0.0000000'

Test #3:

score: 0

Accepted

time: 0ms

memory: 3736kb

input:

1 1 1 2

output:

0.4142135624

result:

ok found '0.4142136', expected '0.4142136', error '0.0000000'

Test #4:

score: 0

Accepted

time: 0ms

memory: 3612kb

input:

1000 1000 999 1000

output:

499.8749374609

result:

ok found '499.8749375', expected '499.8749375', error '0.0000000'

Test #5:

score: 0

Accepted

time: 0ms

memory: 3608kb

input:

1000 1000 1 1000

output:

30.6534300317

result:

ok found '30.6534300', expected '30.6534300', error '0.0000000'

Test #6:

score: 0

Accepted

time: 0ms

memory: 3816kb

input:

1 1000 1 1000

output:

0.0306534300

result:

ok found '0.0306534', expected '0.0306534', error '0.0000000'

Test #7:

score: 0

Accepted

time: 0ms

memory: 3600kb

input:

1000 1000 482 483

output:

499.7409325729

result:

ok found '499.7409326', expected '499.7409326', error '0.0000000'

Test #8:

score: 0

Accepted

time: 0ms

memory: 3736kb

input:

1 1000 482 483

output:

0.4997409326

result:

ok found '0.4997409', expected '0.4997409', error '0.0000000'

Test #9:

score: 0

Accepted

time: 0ms

memory: 3736kb

input:

1 1000 1 2

output:

0.4142135624

result:

ok found '0.4142136', expected '0.4142136', error '0.0000000'

Test #10:

score: 0

Accepted

time: 0ms

memory: 3632kb

input:

1000 1000 1 2

output:

414.2135623731

result:

ok found '414.2135624', expected '414.2135624', error '0.0000000'

Test #11:

score: 0

Accepted

time: 0ms

memory: 3732kb

input:

961 1000 979 983

output:

480.0101931710

result:

ok found '480.0101932', expected '480.0101932', error '0.0000000'

Test #12:

score: 0

Accepted

time: 0ms

memory: 3728kb

input:

997 1000 977 983

output:

497.7369880083

result:

ok found '497.7369880', expected '497.7369880', error '0.0000000'

Test #13:

score: 0

Accepted

time: 1ms

memory: 3608kb

input:

1 928 1 66

output:

0.1096005908

result:

ok found '0.1096006', expected '0.1096006', error '0.0000000'

Test #14:

score: 0

Accepted

time: 0ms

memory: 3680kb

input:

1 928 2 88

output:

0.1310058042

result:

ok found '0.1310058', expected '0.1310058', error '0.0000000'

Test #15:

score: 0

Accepted

time: 0ms

memory: 3728kb

input:

1 928 3 74

output:

0.1676009074

result:

ok found '0.1676009', expected '0.1676009', error '0.0000000'

Test #16:

score: 0

Accepted

time: 0ms

memory: 3620kb

input:

1 928 3 41

output:

0.2129088554

result:

ok found '0.2129089', expected '0.2129089', error '0.0000000'

Test #17:

score: 0

Accepted

time: 0ms

memory: 3852kb

input:

1 928 1 12

output:

0.2240092377

result:

ok found '0.2240092', expected '0.2240092', error '0.0000000'

Test #18:

score: 0

Accepted

time: 0ms

memory: 3608kb

input:

2 928 89 93

output:

0.9890096617

result:

ok found '0.9890097', expected '0.9890097', error '0.0000000'

Test #19:

score: 0

Accepted

time: 0ms

memory: 3684kb

input:

7 928 51 72

output:

3.1990098767

result:

ok found '3.1990099', expected '3.1990099', error '0.0000000'

Test #20:

score: 0

Accepted

time: 0ms

memory: 3676kb

input:

722 547 709 752

output:

355.6863918193

result:

ok found '355.6863918', expected '355.6863918', error '0.0000000'

Test #21:

score: 0

Accepted

time: 1ms

memory: 3628kb

input:

242 742 518 920

output:

103.7429034611

result:

ok found '103.7429035', expected '103.7429035', error '0.0000000'

Test #22:

score: 0

Accepted

time: 1ms

memory: 3576kb

input:

873 701 43 201

output:

276.0875558478

result:

ok found '276.0875558', expected '276.0875558', error '0.0000000'

Test #23:

score: 0

Accepted

time: 1ms

memory: 3600kb

input:

268 228 527 562

output:

131.8460919363

result:

ok found '131.8460919', expected '131.8460919', error '0.0000000'

Test #24:

score: 0

Accepted

time: 1ms

memory: 3628kb

input:

312 558 341 839

output:

121.4683850779

result:

ok found '121.4683851', expected '121.4683851', error '0.0000000'

Test #25:

score: 0

Accepted

time: 0ms

memory: 3688kb

input:

274 85 178 364

output:

112.7564906921

result:

ok found '112.7564907', expected '112.7564907', error '0.0000000'

Test #26:

score: 0

Accepted

time: 0ms

memory: 3836kb

input:

641 539 341 977

output:

238.0544387404

result:

ok found '238.0544387', expected '238.0544387', error '0.0000000'

Test #27:

score: 0

Accepted

time: 1ms

memory: 3852kb

input:

245 861 438 872

output:

101.6183839219

result:

ok found '101.6183839', expected '101.6183839', error '0.0000000'

Test #28:

score: 0

Accepted

time: 0ms

memory: 3728kb

input:

640 181 156 606

output:

215.4198348909

result:

ok found '215.4198349', expected '215.4198349', error '0.0000000'