1113B - Sasha and Magnetic Machines - CodeForces Solution

#include<bits/stdc++.h>
using namespace std;
#define int long long
const int maxn=1e6+5;
int n,a[maxn],anss,sum=0;
int ans=0x3f3f3f3f;
signed main(){
    cin>>n;
    for(int i=1;i<=n;i++)cin>>a[i],sum+=a[i];
    sort(a+1,a+n+1);
    for(int i=1;i<=n;i++){
        if(i==1){
            for(int j=1;j<=a[i];j++){
                if(a[i]%j==0){
                    ans=min(ans,sum-a[i]-a[2]+a[i]/j+a[2]*j);
                }
            }
        }
        else {
            for(int j=1;j<=a[i];j++){
                if(a[i]%j==0){
                    ans=min(ans,sum-a[1]-a[i]+a[i]/j+a[1]*j);
                }
            }
        }
    }
    cout<<ans;
}