diff --git a/Department_highest_salary.py b/Department_highest_salary.py
new file mode 100644
index 0000000..ac4144a
--- /dev/null
+++ b/Department_highest_salary.py
@@ -0,0 +1,8 @@
+import pandas as pd
+
+def department_highest_salary(employee: pd.DataFrame, department: pd.DataFrame) -> pd.DataFrame:
+    df = employee.merge(department , left_on = 'departmentId' , right_on = 'id' , how = 'inner')
+    max_salary = df.groupby('departmentId')['salary'].transform('max')
+    df = df[df['salary'] == max_salary]
+    return df[['name_y' , 'name_x' ,'salary']].rename(columns = {'name_y' : 'Department','name_x' :'Employee'})
+    
\ No newline at end of file
diff --git a/Rank_scores.py b/Rank_scores.py
new file mode 100644
index 0000000..dc5d4c4
--- /dev/null
+++ b/Rank_scores.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def order_scores(scores: pd.DataFrame) -> pd.DataFrame:
+    scores['rank'] = scores['score'].rank(method = 'dense' , ascending = False)
+    return scores[['score' , 'rank']].sort_values(by = ['score'] , ascending = False)
\ No newline at end of file