Completed Pandas5

DepartmentHighestSalary.py

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+'''
+Pandas5
+
+1 Problem 1 : Department Highest Salary (https://leetcode.com/problems/department-highest-salary/ )
+'''
+
+import pandas as pd
+
+def department_highest_salary(employee: pd.DataFrame, department: pd.DataFrame) -> pd.DataFrame:
+    employee['rnk'] = employee.groupby('departmentId')['salary'].rank(method='dense', ascending = False)
+    employee = employee[employee['rnk']==1]
+    employee = employee.merge(department, left_on='departmentId', right_on='id')
+    return employee[['name_y', 'name_x', 'salary']].rename(columns={'name_y':'Department', 'name_x':'Employee', 'salary':'Salary'})

RankScores.py

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+'''
+2 Problem 2 : Rank Scores ( https://leetcode.com/problems/rank-scores/ )
+'''
+
+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)