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QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#185250	#4196. Monty's Hall	rgnerdplayer^#	AC ✓	0ms	3900kb	C++20	589b	2023-09-21 19:58:29	2023-09-21 19:58:29

Judging History

你现在查看的是最新测评结果

[2023-09-21 19:58:29]
评测

测评结果：AC
用时：0ms
内存：3900kb

查看

[2023-09-21 19:58:29]
提交

answer

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

using i64 = long long;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    
    auto solve = [&]() {
        int d, s, e;
        cin >> d >> s >> e;

        cout << fixed << setprecision(12);

        if (2 * s + e > d) {
            int x = 2 * s + e - d;
            double ans = 1 - 1.0 * (s - x) / d;
            cout << ans << '\n';
        } else {
            double ans = 1.0 * (d - s) / d * s / (d - s - e);
            cout << ans << '\n';
        }
    };

    solve();

    return 0;
}

Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 0ms

memory: 3836kb

input:

3 1 1

output:

0.666666666667

result:

ok found '0.6666667', expected '0.6666670', error '0.0000003'

Test #2:

score: 0

Accepted

time: 0ms

memory: 3840kb

input:

8 4 2

output:

0.750000000000

result:

ok found '0.7500000', expected '0.7500000', error '0.0000000'

Test #3:

score: 0

Accepted

time: 0ms

memory: 3840kb

input:

15 4 2

output:

0.325925925926

result:

ok found '0.3259259', expected '0.3259259', error '0.0000000'

Test #4:

score: 0

Accepted

time: 0ms

memory: 3824kb

input:

1000000 1 1

output:

0.000001000001

result:

ok found '0.0000010', expected '0.0000010', error '0.0000000'

Test #5:

score: 0

Accepted

time: 0ms

memory: 3852kb

input:

1000000 999998 1

output:

0.999999000000

result:

ok found '0.9999990', expected '0.9999990', error '0.0000000'

Test #6:

score: 0

Accepted

time: 0ms

memory: 3888kb

input:

1000000 1 999998

output:

0.999999000000

result:

ok found '0.9999990', expected '0.9999990', error '0.0000000'

Test #7:

score: 0

Accepted

time: 0ms

memory: 3760kb

input:

78 39 18

output:

0.730769230769

result:

ok found '0.7307692', expected '0.7307692', error '0.0000000'

Test #8:

score: 0

Accepted

time: 0ms

memory: 3700kb

input:

95 67 2

output:

0.726315789474

result:

ok found '0.7263158', expected '0.7263158', error '0.0000000'

Test #9:

score: 0

Accepted

time: 0ms

memory: 3892kb

input:

132 37 42

output:

0.502429959977

result:

ok found '0.5024300', expected '0.5024300', error '0.0000000'

Test #10:

score: 0

Accepted

time: 0ms

memory: 3824kb

input:

358 286 67

output:

0.986033519553

result:

ok found '0.9860335', expected '0.9860335', error '0.0000000'

Test #11:

score: 0

Accepted

time: 0ms

memory: 3768kb

input:

507 268 214

output:

0.950690335306

result:

ok found '0.9506903', expected '0.9506903', error '0.0000000'

Test #12:

score: 0

Accepted

time: 0ms

memory: 3892kb

input:

307521 21170 77603

output:

0.094432711641

result:

ok found '0.0944327', expected '0.0944327', error '0.0000000'

Test #13:

score: 0

Accepted

time: 0ms

memory: 3892kb

input:

801885 303025 80078

output:

0.450149783863

result:

ok found '0.4501498', expected '0.4501498', error '0.0000000'

Test #14:

score: 0

Accepted

time: 0ms

memory: 3844kb

input:

841840 457853 312238

output:

0.914771215433

result:

ok found '0.9147712', expected '0.9147712', error '0.0000000'

Test #15:

score: 0

Accepted

time: 0ms

memory: 3828kb

input:

141716 97110 2985

output:

0.706306980157

result:

ok found '0.7063070', expected '0.7063070', error '0.0000000'

Test #16:

score: 0

Accepted

time: 0ms

memory: 3900kb

input:

107479 105123 477

output:

0.982517515049

result:

ok found '0.9825175', expected '0.9825175', error '0.0000000'