题解 | #单词倒排#
单词倒排
https://www.nowcoder.com/practice/81544a4989df4109b33c2d65037c5836?tpId=37&tqId=38366&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3FtpId%3D37&difficulty=undefined&judgeStatus=undefined&tags=&title=
str=input()
ls=list(str)
index=len(str)-1
while index >= 0:
f=97<=ord(ls[index])<=122 or 65<=ord(ls[index])<=90
if f==False:
ls[index]=' '
if ls[index]==' 'and ls[index-1]==' ':
del ls[index]
index-=1
a=''.join(ls)
ls_2=a.split(' ')
ls_2=ls_2[::-1]
for item in ls_2:
print(item,end=' ')
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