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解题思路:

注意事项:

参考代码:

import java.util.Scanner;
public class Main{
    public static void main(String[] args)
    {
        Scanner in=new Scanner(System.in);
        int x=in.nextInt();
        int pen4,pen5,pen6,remaining;
        for(int i=x/4;i>=0;i--)//先算4元 i表示pen4的个数
        {
            remaining=x-i*4;
            if(remaining%5==0)
            {
                pen5=remaining/5;
                pen6=0;
                System.out.printf("%d %d %d",pen6,pen5,i);
                break;
            }
            else if(remaining%6==0)
            {
                pen6=remaining/6;
                pen5=0;
                System.out.printf("%d %d %d",pen6,pen5,i);
                break;
            }
        }
    }
}