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by xirunzhao @ 2024-03-19 21:05:16
还真是
by STEWie6 @ 2024-04-08 21:14:02
开long long没用:
```cpp
#include <bits/stdc++.h>
using namespace std;
long long int n,a[303];
double sum;
int main(){
cin>>n;
for(int i=1;i<=n;i++){
cin>>a[i];
}
sort(a+1,a+1+n);
int r=0,l=n,k=1;
while(r<=l){
sum+=(a[l]-a[r])*(a[l]-a[r]);
if(k%2==1){
r++;
k++;
}else{
l--;
k++;
}
}
cout<<(int)sum;
return 0;
}
```
by WilliamHugo @ 2024-04-10 19:17:19
%%%
by _ATRI_ @ 2024-04-24 08:50:14