[LeetCode] 58번 Length of Last Word

문제

Given a string s consists of some words separated by spaces, return the length of the last word in the string. If the last word does not exist, return 0.

A word is a maximal substring consisting of non-space characters only.

예제

Example 1:

Input: s = "Hello World"
Output: 5

Example 2:

Input: s = " "
Output: 0

## 조건

Constraints:

• 1 <= s.length <= 104
• s consists of only English letters and spaces ' '.

풀이과정

내 풀이

class Solution:
    def lengthOfLastWord(self, s: str) -> int:
        li = s.split(" ")
        ans = ""
     
        for i in range(len(li)):
            if len(li[i]) > 0:
                ans = li[i]
        return (len(ans))

다른 풀이

class Solution(object):
    def lengthOfLastWord(self, s):
        wordlist = s.split()
        if wordlist:
            return len(wordlist[-1])
        return 0

split()를 사용하니 조건에 더 부합했다.