Q58

class Solution:#first test
    def lengthOfLastWord(self, s):
        words=''
        for i in range(len(s)):
            if s[(-1-i)]!=' ':
                words = words + s[(-1-i)]
            else:
                if words!='':
                    return len(words)
        if words!='':
            return len(words)
        return 0
        
class Solution:#standard solution
    def lengthOfLastWord(self, s):
        str = ''
        count = 0
        for i in s[::-1]:
            if str != '' and i==' ':
                return count
            if i != ' ':
                count = count+ 1
                str = str + i
        return count