java 代码
import java.util.*;
import java.io.*;
public class Main{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int[] a=new int[n];
for(int i=0;i<n;i++){
a[i]=sc.nextInt();
}
Arrays.sort(a);
System.out.println(a[n-1]);
if(n-1==0) System.out.println(-1);
for(int i=0;i<n-1;i++){
// System.out.println(a[n-1]);
System.out.print(a[i]+" ");
}
}
}