58.length_of_last_word.py

from typing import List

"""
Given a string s consisting of words and spaces, return the length of the last word in the string.

A word is a maximal substring consisting of non-space characters only.
 
Example 1:
Input: s = "Hello World"
Output: 5
Explanation: The last word is "World" with length 5.

Example 2:
Input: s = "   fly me   to   the moon  "
Output: 4
Explanation: The last word is "moon" with length 4.

Example 3:
Input: s = "luffy is still joyboy"
Output: 6
Explanation: The last word is "joyboy" with length 6.
 

Constraints:
1 <= s.length <= 10⁴
s consists of only English letters and spaces ' '.
There will be at least one word in s.
"""

class Solution:
    def lengthOfLastWord(self, s: str) -> int:
        # Remove unnecessary spaces
        s: str = s.strip()

        # Split by string by spaces to get the words
        words: List[str] = s.split(' ')

        # Return the length of last word
        return len(words[-1])