style(ruff): lint

Author: IndexSeek

problems/pandas.py

@@ -30,6 +30,7 @@ def problem_176(employee: pd.DataFrame) -> pd.DataFrame:
         return pd.DataFrame([None], columns=["SecondHighestSalary"])
     return result
 
+
 def problem_180(logs: pd.DataFrame) -> pd.DataFrame:
     """Find all numbers that appear at least three times consecutively.
 
@@ -59,7 +60,6 @@ def problem_180(logs: pd.DataFrame) -> pd.DataFrame:
     )
 
 
-
 def problem_584(customer: pd.DataFrame) -> pd.DataFrame:
     """Find names of customers not referred by the customer with ID = 2.