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

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

Author: pre-commit-ci[bot]

genetic_algorithm/adjacency_representation.py

@@ -56,7 +56,7 @@ def adjacency_vector_closed(path: List[str], nodes: List[str]) -> List[str]:
         next_city = path[(index + 1) % total_cities]
         next_city_map[city] = next_city
 
-    return [next_city_map.get(city, '-') for city in nodes]
+    return [next_city_map.get(city, "-") for city in nodes]
 
 
 if __name__ == "__main__":
@@ -69,4 +69,4 @@ def adjacency_vector_closed(path: List[str], nodes: List[str]) -> List[str]:
         print(f"{city} → {next_city}")
 
     print("\nVector form:")
-    print(" ".join(adjacency))
+    print(" ".join(adjacency))