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

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

Author: pre-commit-ci[bot]

data_structures/binary_tree/b_tree.py

@@ -42,7 +42,7 @@ def split(self, parent: BTreeNode, index: int) -> None:
         new_node = BTreeNode(is_leaf=self.is_leaf)
         mid_index = len(self.keys) // 2
         median_key = self.keys[mid_index]
-        
+
         new_node.keys = self.keys[mid_index + 1 :]
         self.keys = self.keys[:mid_index]
 

data_structures/trie/trie_autocomplete.py

@@ -215,9 +215,7 @@ def _collect_words_with_frequency(
             results.append((current_word, node.frequency))
 
         for char, child_node in node.children.items():
-            self._collect_words_with_frequency(
-                child_node, current_word + char, results
-            )
+            self._collect_words_with_frequency(child_node, current_word + char, results)
 
     def delete(self, word: str) -> bool:
         """
@@ -266,7 +264,7 @@ def _delete_helper(node: TrieNode, word: str, index: int) -> bool:
         node = self._find_node(word.lower())
         if node is None or not node.is_end_of_word:
             return False
-        
+
         _delete_helper(self.root, word.lower(), 0)
         return True