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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
#812356	#4196. Monty's Hall	rlc202204	AC ✓	1ms	3948kb	C++14	420b	2024-12-13 14:39:10	2024-12-13 14:39:11

Judging History

你现在查看的是最新测评结果

[2024-12-13 14:39:11]
评测

测评结果：AC
用时：1ms
内存：3948kb

查看

[2024-12-13 14:39:10]
提交

answer

#include <iostream>
#include <cstdio>
#include <map> 
#include <string>
#include <vector>
#include <cstring>
#include <algorithm>
using namespace std;

int main() {
	int d, s, e;
	cin >> d >> s >> e;
	double p1 = 1.0 / d;
	double p2 = (1.0 - 1.0 * s / d) / (d - e - s);
	if (d - e - s >= s) {//??? 
		printf("%.8lf\n", p2 * s);
	}
	else {
		printf("%.8lf\n", 1.0 - 1.0 * s / d + (s - (d - e - s)) * p1);
	}
	return 0;
}

源文件, 语言: C++14

详细

Test #1:

score: 100

Accepted

time: 1ms

memory: 3832kb

input:

3 1 1

output:

0.66666667

result:

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

Test #2:

score: 0

Accepted

time: 1ms

memory: 3932kb

input:

8 4 2

output:

0.75000000

result:

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

Test #3:

score: 0

Accepted

time: 0ms

memory: 3888kb

input:

15 4 2

output:

0.32592593

result:

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

Test #4:

score: 0

Accepted

time: 0ms

memory: 3832kb

input:

1000000 1 1

output:

0.00000100

result:

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

Test #5:

score: 0

Accepted

time: 0ms

memory: 3888kb

input:

1000000 999998 1

output:

0.99999900

result:

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

Test #6:

score: 0

Accepted

time: 0ms

memory: 3948kb

input:

1000000 1 999998

output:

0.99999900

result:

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

Test #7:

score: 0

Accepted

time: 0ms

memory: 3884kb

input:

78 39 18

output:

0.73076923

result:

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

Test #8:

score: 0

Accepted

time: 0ms

memory: 3892kb

input:

95 67 2

output:

0.72631579

result:

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

Test #9:

score: 0

Accepted

time: 0ms

memory: 3836kb

input:

132 37 42

output:

0.50242996

result:

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

Test #10:

score: 0

Accepted

time: 0ms

memory: 3784kb

input:

358 286 67

output:

0.98603352

result:

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

Test #11:

score: 0

Accepted

time: 0ms

memory: 3932kb

input:

507 268 214

output:

0.95069034

result:

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

Test #12:

score: 0

Accepted

time: 0ms

memory: 3888kb

input:

307521 21170 77603

output:

0.09443271

result:

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

Test #13:

score: 0

Accepted

time: 0ms

memory: 3756kb

input:

801885 303025 80078

output:

0.45014978

result:

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

Test #14:

score: 0

Accepted

time: 0ms

memory: 3892kb

input:

841840 457853 312238

output:

0.91477122

result:

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

Test #15:

score: 0

Accepted

time: 0ms

memory: 3824kb

input:

141716 97110 2985

output:

0.70630698

result:

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

Test #16:

score: 0

Accepted

time: 0ms

memory: 3892kb

input:

107479 105123 477

output:

0.98251752

result:

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