你真厉害
by Weizhuo_Zhao @ 2023-07-02 16:41:40
@[Weizhuo_Zhao](/user/681558) ？？
by ht__QAQ__ @ 2023-07-02 16:54:26
```cpp
#include <bits/stdc++.h>
using namespace std;
int n,p[301];
long long ans;
int main(){
cin>>n;
for(int i=0;i<n;i++)
{
cin>>p[i];
}
sort(p,p+n);
ans+=pow(p[n-1],2);
for(int l=0,r=n-1;l<r;)
{
ans+=pow(p[l]-p[r],2);
r--;
ans+=pow(p[l]-p[r],2);
l++;
}
cout<<ans;
return 0;
}
```
by ltzx2022_kanxinyi_5 @ 2023-07-17 15:35:01