Length of Last Word

Problem: Length of Last Word

The solution is quite simple. Just find last word and decide whether it's a word. If not a word, we find the second last word and do the same repeating thing.

Code in Python:

class Solution(object):
    def lengthOfLastWord(self, s):
        """
        :type s: str
        :rtype: int
        """
        words = s.split(" ")
        while words:
            cur = words.pop()
            if self.isWord(cur):
                return len(cur)
        return 0

    def isWord(self, s):
        if not len(s): return False
        for c in s:
            if c not in string.letters:
                return False
        return True