updated solution 58 to leverage built-in Python functions and be more concise

Author: dmaynard24

python/questions_001_100/question_058/__pycache__/length_of_last_word.cpython-39.pyc

@@ -23,13 +23,4 @@
 
 class Solution:
   def length_of_last_word(self, s: str) -> int:
-    i = len(s) - 1
-    while s[i] == ' ':
-      i -= 1
-
-    length = 0
-    while s[i] != ' ':
-      length += 1
-      i -= 1
-
-    return length
+    return 0 if not s else len(s.rstrip().split(' ')[-1])