#include <bits/stdc++.h>
using namespace std;
typedef long double ld;
const int N = 110;
ld ans;
int n, a[N];
int main(){
ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef _LOCAL
freopen("in.txt","r",stdin);
#endif // _LOCAL
cin >> n;
for (int i = 0; i < n; i++)
cin >> a[i];
sort(a, a + n);
ans = (ld(a[0]) + ld(a[1])) / 2.0;
for (int i = 2; i < n; i++)
ans = (ans + ld(a[i])) / 2.0;
cout << fixed << setprecision(10) << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
256 KB |
Output is correct |
2 |
Correct |
4 ms |
256 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
4 ms |
256 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |