#include <bits/stdc++.h>
using namespace std;
int main()
{
long double n;
cin >>n;
vector <long double> a(n);
for (int i = 0; i < n; ++i) {
cin >>a[i];
}
sort(a.begin(), a.end());
long double av1 = (a[0] + a[1]) / 2;
long double av2 = (a[2] + av1) / 2;
long double av3 = (a[3] + av2) / 2;
long double av4 = (a[4] + av3) / 2;
if (n == 3) cout <<fixed<<setprecision(7)<<av2<<endl;
else if (n == 4) cout <<fixed<<setprecision(7)<<av3<<endl;
else cout <<fixed<<setprecision(7)<<av4<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
8 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
9 |
Incorrect |
0 ms |
364 KB |
Output isn't correct |
10 |
Incorrect |
0 ms |
364 KB |
Output isn't correct |