题解 | #单词倒排#

package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"
    "unicode"
)

func main() {
	in := bufio.NewScanner(os.Stdin)
	in.Scan()
	str := in.Text()
	var s []rune
	for _, v := range str {
		if unicode.IsLetter(v) {
			s = append(s, v)
		} else {
			s = append(s, ' ')
		}
	}
	ss := strings.Fields(string(s))
	for i := len(ss) - 1; i >= 0; i-- {
		fmt.Print(ss[i] + " ")
	}
}