题解 | 单词倒排
import re
def re_word(n):
sig_word = re.split(r'[^a-zA-Z]+', n)
# words = re.split(r'[^a-zA-Z]+', text)
final_word = []
x =len(sig_word)
for i in range(x-1):
final_word.append(sig_word[x-i-1])
return " ".join(final_word)
n = input().strip()
print(re_word(n))
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