題目
Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.
Example 1:
Input: "Let's take LeetCode contest"
Output: "s'teL ekat edoCteeL tsetnoc"
Note: In the string, each word is separated by single space and there will not be any extra space in the string.
思路
由于字符串中每個單詞僅有一個space區分開,而且沒有多余的空格,所以
- 將字符串轉化為list;
- 遍歷list中的每個元素,將其反轉,并存入到一個新的list中;
- 將新的list用space.join()操作生成新的字符串并返回。
代碼(python)
class Solution(object):
def reverseWords(self, s):
"""
:type s: str
:rtype: str
"""
li = s.split()
res = []
for each in li:
res.append(each[::-1])
return ' '.join(res)