584. Find Customer Referee LeetCode Solution

Last updated: February 18, 2025

In this guide, you will get 584. Find Customer Referee LeetCode Solution with the best time and space complexity. The solution to Find Customer Referee 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. Find Customer Referee solution in C++
  4. Find Customer Referee solution in Java
  5. Find Customer Referee solution in Python
  6. Additional Resources
584. Find Customer Referee LeetCode Solution image

Problem Statement of Find Customer Referee

Table: Customer

+————-+———+
| Column Name | Type |
+————-+———+
| id | int |
| name | varchar |
| referee_id | int |
+————-+———+
In SQL, id is the primary key column for this table.
Each row of this table indicates the id of a customer, their name, and the id of the customer who referred them.

Find the names of the customer that are not referred by the customer with id = 2.
Return the result table in any order.
The result format is in the following example.

Example not found

Constraints not found

Complexity Analysis

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

584. Find Customer Referee LeetCode Solution in C++

SELECT name
FROM Customer
WHERE referee_id IS NULL OR referee_id != 2;
/* code provided by PROGIEZ */

584. Find Customer Referee LeetCode Solution in Java

N/A
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584. Find Customer Referee LeetCode Solution in Python

N/A
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Additional Resources

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