3482. Analyze Organization Hierarchy LeetCode Solution

Last updated: March 16, 2025

In this guide, you will get 3482. Analyze Organization Hierarchy LeetCode Solution with the best time and space complexity. The solution to Analyze Organization Hierarchy problem is provided in various programming languages like C++, Java, and Python. This will be helpful for you if you are preparing for placements, hackathons, interviews, or practice purposes. The solutions provided here are very easy to follow and include detailed explanations.

Table of Contents

  1. Problem Statement
  2. Complexity Analysis
  3. Analyze Organization Hierarchy solution in C++
  4. Analyze Organization Hierarchy solution in Java
  5. Analyze Organization Hierarchy solution in Python
  6. Additional Resources
3482. Analyze Organization Hierarchy LeetCode Solution image

Problem Statement of Analyze Organization Hierarchy

Table: Employees

+—————-+———+
| Column Name | Type |
+—————-+———+
| employee_id | int |
| employee_name | varchar |
| manager_id | int |
| salary | int |
| department | varchar |
+—————-+———-+
employee_id is the unique key for this table.
Each row contains information about an employee, including their ID, name, their manager’s ID, salary, and department.
manager_id is null for the top-level manager (CEO).

Write a solution to analyze the organizational hierarchy and answer the following:

Hierarchy Levels: For each employee, determine their level in the organization (CEO is level 1, employees reporting directly to the CEO are level 2, and so on).
Team Size: For each employee who is a manager, count the total number of employees under them (direct and indirect reports).
Salary Budget: For each manager, calculate the total salary budget they control (sum of salaries of all employees under them, including indirect reports, plus their own salary).

Return the result table ordered by the result ordered by level in ascending order, then by budget in descending order, and finally by employee_name in ascending order.
The result format is in the following example.

Example:

Input:
Employees table:

+————-+—————+————+——–+————-+
| employee_id | employee_name | manager_id | salary | department |
+————-+—————+————+——–+————-+
| 1 | Alice | null | 12000 | Executive |
| 2 | Bob | 1 | 10000 | Sales |
| 3 | Charlie | 1 | 10000 | Engineering |
| 4 | David | 2 | 7500 | Sales |
| 5 | Eva | 2 | 7500 | Sales |
| 6 | Frank | 3 | 9000 | Engineering |
| 7 | Grace | 3 | 8500 | Engineering |
| 8 | Hank | 4 | 6000 | Sales |
| 9 | Ivy | 6 | 7000 | Engineering |
| 10 | Judy | 6 | 7000 | Engineering |
+————-+—————+————+——–+————-+

Output:

+————-+—————+——-+———–+——–+
| employee_id | employee_name | level | team_size | budget |
+————-+—————+——-+———–+——–+
| 1 | Alice | 1 | 9 | 84500 |
| 3 | Charlie | 2 | 4 | 41500 |
| 2 | Bob | 2 | 3 | 31000 |
| 6 | Frank | 3 | 2 | 23000 |
| 4 | David | 3 | 1 | 13500 |
| 7 | Grace | 3 | 0 | 8500 |
| 5 | Eva | 3 | 0 | 7500 |
| 9 | Ivy | 4 | 0 | 7000 |
| 10 | Judy | 4 | 0 | 7000 |
| 8 | Hank | 4 | 0 | 6000 |
+————-+—————+——-+———–+——–+

Explanation:

Organization Structure:

Alice (ID: 1) is the CEO (level 1) with no manager
Bob (ID: 2) and Charlie (ID: 3) report directly to Alice (level 2)
David (ID: 4), Eva (ID: 5) report to Bob, while Frank (ID: 6) and Grace (ID: 7) report to Charlie (level 3)
Hank (ID: 8) reports to David, and Ivy (ID: 9) and Judy (ID: 10) report to Frank (level 4)

Level Calculation:

The CEO (Alice) is at level 1
Each subsequent level of management adds 1 to the level

Team Size Calculation:

Alice has 9 employees under her (the entire company except herself)
Bob has 3 employees (David, Eva, and Hank)
Charlie has 4 employees (Frank, Grace, Ivy, and Judy)
David has 1 employee (Hank)
Frank has 2 employees (Ivy and Judy)
Eva, Grace, Hank, Ivy, and Judy have no direct reports (team_size = 0)

Budget Calculation:

Alice’s budget: Her salary (12000) + all employees’ salaries (72500) = 84500
Charlie’s budget: His salary (10000) + Frank’s budget (23000) + Grace’s salary (8500) = 41500
Bob’s budget: His salary (10000) + David’s budget (13500) + Eva’s salary (7500) = 31000
Frank’s budget: His salary (9000) + Ivy’s salary (7000) + Judy’s salary (7000) = 23000
David’s budget: His salary (7500) + Hank’s salary (6000) = 13500
Employees with no direct reports have budgets equal to their own salary

Note:

The result is ordered first by level in ascending order
Within the same level, employees are ordered by budget in descending order then by name in ascending order

Example not found

Constraints not found

Complexity Analysis

  • Time Complexity: Google AdSense
  • Space Complexity: Google Analytics

3482. Analyze Organization Hierarchy LeetCode Solution in C++

WITH RECURSIVE
  EmployeeHierarchy AS (
    -- Base case: direct reports to CEO
    SELECT
      employee_id,
      employee_name,
      manager_id,
      salary,
AS level
    FROM Employees
    WHERE manager_id IS NULL
    UNION ALL
    -- Recursive case: reports of reports
    SELECT
      Employees.employee_id,
      Employees.employee_name,
      Employees.manager_id,
      Employees.salary,
      EmployeeHierarchy.level + 1
    FROM Employees
    INNER JOIN EmployeeHierarchy
      ON (Employees.manager_id = EmployeeHierarchy.employee_id)
  ),
  -- Calculate team size and budget for each employee
  TeamSizeAndBudget AS (
    WITH RECURSIVE
      -- Get all subordinates (direct and indirect)
      Subordinates AS (
        -- Base case: direct reports
        SELECT
          manager_id,
          employee_id,
          salary
        FROM Employees
        WHERE manager_id IS NOT NULL
        UNION ALL
        -- Recursive case: indirect reports
        SELECT
          Subordinates.manager_id,
          Employees.employee_id,
          Employees.salary
        FROM Employees
        INNER JOIN Subordinates
          ON (Employees.manager_id = Subordinates.employee_id)
      )
    SELECT
      Employees.employee_id,
      COUNT(DISTINCT Subordinates.employee_id) AS team_size,
      IFNULL(SUM(Subordinates.salary), 0) + Employees.salary AS total_budget
    FROM Employees
    LEFT JOIN Subordinates
      ON (Employees.employee_id = Subordinates.manager_id)
    GROUP BY Employees.employee_id, Employees.salary
  )
SELECT
  EmployeeHierarchy.employee_id,
  EmployeeHierarchy.employee_name,
  EmployeeHierarchy.level,
  IFNULL(TeamSizeAndBudget.team_size, 0) AS team_size,
  IFNULL(TeamSizeAndBudget.total_budget, EmployeeHierarchy.salary) AS budget
FROM EmployeeHierarchy
LEFT JOIN TeamSizeAndBudget
  USING (employee_id)
ORDER BY
  EmployeeHierarchy.level,
  TeamSizeAndBudget.total_budget DESC,
  EmployeeHierarchy.employee_name;
/* code provided by PROGIEZ */

3482. Analyze Organization Hierarchy LeetCode Solution in Java

N/A
// code provided by PROGIEZ

3482. Analyze Organization Hierarchy LeetCode Solution in Python

N/A
 # code by PROGIEZ

Additional Resources

Happy Coding! Keep following PROGIEZ for more updates and solutions.