题解 | #单词倒排#

import java.util.*;
//正则表达式yyds
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String str = sc.nextLine();
        String[] arr = str.split("\\W");//  \\W为正则表达式，表示一个非单词字符
        for (int i = arr.length - 1; i >= 0; i--) {
            System.out.print(arr[i] + " ");
        }
    }
}