#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
double d[1 << 20], ans;
int p[22][2], n, bit[1 << 20];
int main(){
scanf("%d", &n);
for (int i = 0; i < n; i++)scanf("%d%d", p[i], p[i] + 1);
for (int i = 1; i < 1 << n; i++)for (int j = 0; j < n; j++)if ((1 << j) & i)bit[i]++;
for (int i = 0; i < 1 << n; i++){
for (int j = 0; j < n; j++){
if (!((1 << j) & i)){
d[1 << j | i] += 1.0 / bit[1 << j | i] * (p[j][0] / 100.0 * p[j][1] + (100 - p[j][0]) / 100.0 * d[i]);
}
}
if (ans < d[i])ans = d[i];
}
printf("%.10f", ans);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
13372 KB |
Output is correct |
2 |
Correct |
0 ms |
13372 KB |
Output is correct |
3 |
Correct |
0 ms |
13372 KB |
Output is correct |
4 |
Correct |
0 ms |
13372 KB |
Output is correct |
5 |
Correct |
0 ms |
13372 KB |
Output is correct |
6 |
Correct |
0 ms |
13372 KB |
Output is correct |
7 |
Correct |
0 ms |
13372 KB |
Output is correct |
8 |
Correct |
0 ms |
13372 KB |
Output is correct |
9 |
Correct |
0 ms |
13372 KB |
Output is correct |
10 |
Correct |
0 ms |
13372 KB |
Output is correct |
11 |
Correct |
0 ms |
13372 KB |
Output is correct |
12 |
Correct |
0 ms |
13372 KB |
Output is correct |
13 |
Correct |
0 ms |
13372 KB |
Output is correct |
14 |
Correct |
0 ms |
13372 KB |
Output is correct |
15 |
Correct |
0 ms |
13372 KB |
Output is correct |
16 |
Correct |
0 ms |
13372 KB |
Output is correct |
17 |
Correct |
0 ms |
13372 KB |
Output is correct |
18 |
Correct |
0 ms |
13372 KB |
Output is correct |
19 |
Correct |
0 ms |
13372 KB |
Output is correct |
20 |
Correct |
0 ms |
13372 KB |
Output is correct |
21 |
Correct |
0 ms |
13372 KB |
Output is correct |
22 |
Correct |
0 ms |
13372 KB |
Output is correct |
23 |
Correct |
0 ms |
13372 KB |
Output is correct |
24 |
Correct |
0 ms |
13372 KB |
Output is correct |
25 |
Correct |
0 ms |
13372 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
401 ms |
13372 KB |
Output is correct |
2 |
Correct |
397 ms |
13372 KB |
Output is correct |
3 |
Correct |
397 ms |
13372 KB |
Output is correct |
4 |
Correct |
393 ms |
13372 KB |
Output is correct |
5 |
Correct |
397 ms |
13372 KB |
Output is correct |
6 |
Correct |
402 ms |
13372 KB |
Output is correct |
7 |
Correct |
405 ms |
13372 KB |
Output is correct |
8 |
Correct |
402 ms |
13372 KB |
Output is correct |
9 |
Correct |
399 ms |
13372 KB |
Output is correct |
10 |
Correct |
383 ms |
13372 KB |
Output is correct |
11 |
Correct |
394 ms |
13372 KB |
Output is correct |
12 |
Correct |
377 ms |
13372 KB |
Output is correct |
13 |
Correct |
397 ms |
13372 KB |
Output is correct |
14 |
Correct |
398 ms |
13372 KB |
Output is correct |
15 |
Correct |
398 ms |
13372 KB |
Output is correct |
16 |
Correct |
346 ms |
13372 KB |
Output is correct |
17 |
Correct |
358 ms |
13372 KB |
Output is correct |
18 |
Correct |
389 ms |
13372 KB |
Output is correct |
19 |
Correct |
396 ms |
13372 KB |
Output is correct |
20 |
Correct |
398 ms |
13372 KB |
Output is correct |