#include<cstdio>
#include<algorithm>
double all,m,p[22],d[22],D[1<<20];
int a,i,j;
main()
{
scanf("%d",&a);
for(i=0;i<a;i++)scanf("%lf%lf",&p[i],&d[i]),p[i]/=100;
for(i=1;i<(1<<a);i++)
{
all=0;
for(j=0;j<a;j++)
{
if((i>>j)%2)
{
D[i]+=p[j]*d[j]+(1-p[j])*D[i-(1<<j)];
all++;
}
}
D[i]/=all;
m=std::max(m,D[i]);
}
printf("%.12lf",m);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
9276 KB |
Output is correct |
2 |
Correct |
0 ms |
9276 KB |
Output is correct |
3 |
Correct |
0 ms |
9276 KB |
Output is correct |
4 |
Correct |
0 ms |
9276 KB |
Output is correct |
5 |
Correct |
0 ms |
9276 KB |
Output is correct |
6 |
Correct |
0 ms |
9276 KB |
Output is correct |
7 |
Correct |
0 ms |
9276 KB |
Output is correct |
8 |
Correct |
0 ms |
9276 KB |
Output is correct |
9 |
Correct |
0 ms |
9276 KB |
Output is correct |
10 |
Correct |
0 ms |
9276 KB |
Output is correct |
11 |
Correct |
0 ms |
9276 KB |
Output is correct |
12 |
Correct |
0 ms |
9276 KB |
Output is correct |
13 |
Correct |
0 ms |
9276 KB |
Output is correct |
14 |
Correct |
0 ms |
9276 KB |
Output is correct |
15 |
Correct |
0 ms |
9276 KB |
Output is correct |
16 |
Correct |
0 ms |
9276 KB |
Output is correct |
17 |
Correct |
0 ms |
9276 KB |
Output is correct |
18 |
Correct |
0 ms |
9276 KB |
Output is correct |
19 |
Correct |
0 ms |
9276 KB |
Output is correct |
20 |
Correct |
0 ms |
9276 KB |
Output is correct |
21 |
Correct |
0 ms |
9276 KB |
Output is correct |
22 |
Correct |
0 ms |
9276 KB |
Output is correct |
23 |
Correct |
0 ms |
9276 KB |
Output is correct |
24 |
Correct |
0 ms |
9276 KB |
Output is correct |
25 |
Correct |
0 ms |
9276 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
95 ms |
9276 KB |
Output is correct |
2 |
Correct |
98 ms |
9276 KB |
Output is correct |
3 |
Correct |
98 ms |
9276 KB |
Output is correct |
4 |
Correct |
94 ms |
9276 KB |
Output is correct |
5 |
Correct |
101 ms |
9276 KB |
Output is correct |
6 |
Correct |
102 ms |
9276 KB |
Output is correct |
7 |
Correct |
94 ms |
9276 KB |
Output is correct |
8 |
Correct |
99 ms |
9276 KB |
Output is correct |
9 |
Correct |
98 ms |
9276 KB |
Output is correct |
10 |
Correct |
101 ms |
9276 KB |
Output is correct |
11 |
Correct |
102 ms |
9276 KB |
Output is correct |
12 |
Correct |
102 ms |
9276 KB |
Output is correct |
13 |
Correct |
102 ms |
9276 KB |
Output is correct |
14 |
Correct |
102 ms |
9276 KB |
Output is correct |
15 |
Correct |
102 ms |
9276 KB |
Output is correct |
16 |
Correct |
102 ms |
9276 KB |
Output is correct |
17 |
Correct |
94 ms |
9276 KB |
Output is correct |
18 |
Correct |
98 ms |
9276 KB |
Output is correct |
19 |
Correct |
98 ms |
9276 KB |
Output is correct |
20 |
Correct |
98 ms |
9276 KB |
Output is correct |