#include <bits/stdc++.h>
using namespace std;
int N;
int P[20], Q[20];
double D[1 << 20];
int main()
{
scanf("%d", &N);
for (int i=0;i<N;i++) scanf("%d%d", P+i, Q+i);
double ans = 0;
for (int msk=1;msk<(1<<N);msk++){
D[msk] = 0;
int cnt = 0;
for (int i=0;i<N;i++) if (msk & (1 << i)) cnt++;
for (int i=0;i<N;i++) if (msk & (1 << i)){
int nmsk = msk ^ (1 << i);
D[msk] += (D[nmsk] * (100 - P[i]) / 100. + Q[i] * P[i] / 100.) / cnt;
}
ans = max(ans, D[msk]);
}
printf("%.12f\n", ans);
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 2 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 3 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 4 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 5 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 6 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 7 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 8 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 9 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 10 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 11 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 12 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 13 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 14 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 15 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 16 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 17 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 18 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 19 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 20 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 21 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 22 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 23 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 24 |
Correct |
0 ms |
9912 KB |
Output is correct |
| 25 |
Correct |
0 ms |
9912 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
368 ms |
9912 KB |
Output is correct |
| 2 |
Correct |
364 ms |
9912 KB |
Output is correct |
| 3 |
Correct |
368 ms |
9912 KB |
Output is correct |
| 4 |
Correct |
364 ms |
9912 KB |
Output is correct |
| 5 |
Correct |
368 ms |
9912 KB |
Output is correct |
| 6 |
Correct |
367 ms |
9912 KB |
Output is correct |
| 7 |
Correct |
368 ms |
9912 KB |
Output is correct |
| 8 |
Correct |
369 ms |
9912 KB |
Output is correct |
| 9 |
Correct |
368 ms |
9912 KB |
Output is correct |
| 10 |
Correct |
356 ms |
9912 KB |
Output is correct |
| 11 |
Correct |
358 ms |
9912 KB |
Output is correct |
| 12 |
Correct |
343 ms |
9912 KB |
Output is correct |
| 13 |
Correct |
368 ms |
9912 KB |
Output is correct |
| 14 |
Correct |
368 ms |
9912 KB |
Output is correct |
| 15 |
Correct |
363 ms |
9912 KB |
Output is correct |
| 16 |
Correct |
311 ms |
9912 KB |
Output is correct |
| 17 |
Correct |
321 ms |
9912 KB |
Output is correct |
| 18 |
Correct |
352 ms |
9912 KB |
Output is correct |
| 19 |
Correct |
354 ms |
9912 KB |
Output is correct |
| 20 |
Correct |
364 ms |
9912 KB |
Output is correct |
