Length of Last Word

Question

Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.

If the last word does not exist, return 0.

Example:

Given s = "Hello World",

return 5.

Answer

solution：this is done myself

class Solution(object):
    def lengthOfLastWord(self, s):
        """
        :type s: str
        :rtype: int
        """
        a = re.findall("[A-Za-z]+",s)
        if a:
            return len(a[-1])
        else:
            return 0

Knowledge：

1. 这道题目并不难，因为有python的特性。