PAT L1-027 之我写的狗屎代码

import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Scanner;
public class Main{
    public static void main(String[] args) throws IOException {
        Scanner sc=new Scanner(System.in);
        HashSet<Integer> hashSet=new HashSet<>();
        String c=sc.nextLine();
        char x[]=c.toCharArray();
        int x1[]=new int[x.length];
        for (int i = 0; i < x1.length; i++) {
                x1[i]=x[i]-'0';
            hashSet.add(x1[i]);
        }
                Object[] x2 =hashSet.toArray();
                int x3[]=new int [x2.length];
        for (int i = 0; i < x2.length; i++) {
                    x3[i]=(int) x2[i];
        }
        Arrays.sort(x3);
        System.out.print("int[] arr = new int[]{");
        for (int i=x3.length-1;i>=0;i--){
            System.out.print(x3[i]);
            if(i!=0){
                System.out.print(",");
            }
        }
        System.out.println("};");
            int x4[]=new int[11];

                for (int i = 0; i < x1.length; i++) {
                    for (int j = 0; j < x3.length; j++) {
                                if(x1[i]==x3[j]){
                                    x4[i]=x3.length-j-1;
                                }
                    }
            }
        System.out.print("int[] index = new int[]{");
        for (int i = 0; i < x4.length; i++) {
            System.out.print(x4[i]);
            if(i!=x4.length-1){
                System.out.print(",");
            }
        }
        System.out.print("};");

        }
    }