#include <iostream>
#include <vector>
#include <set>
using namespace std;
int main() {
int n; cin >> n;
multiset<double> st;
for (int i = 0; i < n; ++i){
int x; cin >> x;
st.insert(x*1.0);
}
while (st.size() > 1){
auto it1 = st.begin();
auto it2 = ++st.begin();
double k = (*it1 + *it2) / 2.0;
st.erase(it1);
st.erase(it2);
st.insert(k);
}
double ans = *st.begin();
cout.precision(6);
cout << fixed << ans << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
300 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |