Optimized recursive_bubble_sort (#2410)

* optimized recursive_bubble_sort

* Fixed doctest error due whitespace

* reduce loop times for optimization

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

strings/boyer_moore_search.py

@@ -25,7 +25,7 @@ class BoyerMooreSearch:
         self.textLen, self.patLen = len(text), len(pattern)
 
     def match_in_pattern(self, char):
-        """ finds the index of char in pattern in reverse order
+        """finds the index of char in pattern in reverse order
 
         Parameters :
             char (chr): character to be searched

strings/capitalize.py

@@ -16,7 +16,7 @@ def capitalize(sentence: str) -> str:
     ''
     """
     if not sentence:
-        return ''
+        return ""
     lower_to_upper = {lc: uc for lc, uc in zip(ascii_lowercase, ascii_uppercase)}
     return lower_to_upper.get(sentence[0], sentence[0]) + sentence[1:]