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

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Author: pre-commit-ci[bot]

genetic_algorithm/adjacency_representation.py

@@ -12,6 +12,7 @@
 https://en.wikipedia.org/wiki/Adjacency_list
 """
 
+
 def adjacency_vector_closed(path: list[str], nodes: list[str]) -> list[str]:
     """
     Generate adjacency vector for a closed tour.