[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

Diff for: backtracking/match_word_pattern.py

@@ -1,4 +1,4 @@
-def matchWordPattern(pattern :str, input_string: str) -> bool:
+def matchWordPattern(pattern: str, input_string: str) -> bool:
     """
     Determine if a given pattern matches a string using backtracking.
 
@@ -15,40 +15,43 @@ def matchWordPattern(pattern :str, input_string: str) -> bool:
     >>> matchWordPattern("GG", "PythonJavaPython")
     False
     """
+
     def backtrack(pattern_index, str_index):
         if pattern_index == len(pattern) and str_index == len(input_string):
             return True
         if pattern_index == len(pattern) or str_index == len(input_string):
             return False
-        
+
         char = pattern[pattern_index]
-        
+
         if char in pattern_map:
             mapped_str = pattern_map[char]
             if input_string.startswith(mapped_str, str_index):
                 return backtrack(pattern_index + 1, str_index + len(mapped_str))
             else:
                 return False
-        
+
         for end in range(str_index + 1, len(input_string) + 1):
             substr = input_string[str_index:end]
             if substr in str_map:
                 continue
-            
+
             pattern_map[char] = substr
             str_map[substr] = char
-            
+
             if backtrack(pattern_index + 1, end):
                 return True
-            
+
             del pattern_map[char]
             del str_map[substr]
         return False
-    
+
     pattern_map = {}
     str_map = {}
     return backtrack(0, 0)
 
+
 if __name__ == "__main__":
     import doctest
+
     doctest.testmod()