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QOJ
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| #431242 | #4196. Monty's Hall | kevinyang# | AC ✓ | 1ms | 3968kb | C++14 | 391b | 2024-06-05 07:10:03 | 2024-06-05 07:10:03 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
signed main(){
cin.tie(nullptr)->sync_with_stdio(false);
int d,s,e;
cin >> d >> s >> e;
int rem = d-s-e;
int choose = min(rem,s);
double p1 = (((double)d-s)/((double)d-s-e))/d;
cout << fixed << setprecision(10);
cout << choose*p1 + ((double)s-choose)/d << '\n';
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 3876kb
input:
3 1 1
output:
0.6666666667
result:
ok found '0.6666667', expected '0.6666670', error '0.0000003'
Test #2:
score: 0
Accepted
time: 1ms
memory: 3920kb
input:
8 4 2
output:
0.7500000000
result:
ok found '0.7500000', expected '0.7500000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 1ms
memory: 3928kb
input:
15 4 2
output:
0.3259259259
result:
ok found '0.3259259', expected '0.3259259', error '0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
1000000 1 1
output:
0.0000010000
result:
ok found '0.0000010', expected '0.0000010', error '0.0000000'
Test #5:
score: 0
Accepted
time: 1ms
memory: 3732kb
input:
1000000 999998 1
output:
0.9999990000
result:
ok found '0.9999990', expected '0.9999990', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3876kb
input:
1000000 1 999998
output:
0.9999990000
result:
ok found '0.9999990', expected '0.9999990', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3732kb
input:
78 39 18
output:
0.7307692308
result:
ok found '0.7307692', expected '0.7307692', error '0.0000000'
Test #8:
score: 0
Accepted
time: 1ms
memory: 3852kb
input:
95 67 2
output:
0.7263157895
result:
ok found '0.7263158', expected '0.7263158', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3736kb
input:
132 37 42
output:
0.5024299600
result:
ok found '0.5024300', expected '0.5024300', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
358 286 67
output:
0.9860335196
result:
ok found '0.9860335', expected '0.9860335', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3880kb
input:
507 268 214
output:
0.9506903353
result:
ok found '0.9506903', expected '0.9506903', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3864kb
input:
307521 21170 77603
output:
0.0944327116
result:
ok found '0.0944327', expected '0.0944327', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3968kb
input:
801885 303025 80078
output:
0.4501497839
result:
ok found '0.4501498', expected '0.4501498', error '0.0000000'
Test #14:
score: 0
Accepted
time: 0ms
memory: 3924kb
input:
841840 457853 312238
output:
0.9147712154
result:
ok found '0.9147712', expected '0.9147712', error '0.0000000'
Test #15:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
141716 97110 2985
output:
0.7063069802
result:
ok found '0.7063070', expected '0.7063070', error '0.0000000'
Test #16:
score: 0
Accepted
time: 0ms
memory: 3820kb
input:
107479 105123 477
output:
0.9825175150
result:
ok found '0.9825175', expected '0.9825175', error '0.0000000'