182. Duplicate Emails LeetCode Solution

Last updated: February 15, 2025

In this guide, you will get 182. Duplicate Emails LeetCode Solution with the best time and space complexity. The solution to Duplicate Emails 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. Duplicate Emails solution in C++
  4. Duplicate Emails solution in Java
  5. Duplicate Emails solution in Python
  6. Additional Resources
182. Duplicate Emails LeetCode Solution image

Problem Statement of Duplicate Emails

Table: Person

+————-+———+
| Column Name | Type |
+————-+———+
| id | int |
| email | varchar |
+————-+———+
id is the primary key (column with unique values) for this table.
Each row of this table contains an email. The emails will not contain uppercase letters.

Write a solution to report all the duplicate emails. Note that it’s guaranteed that the email field is not NULL.
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

182. Duplicate Emails LeetCode Solution in C++

SELECT email
FROM Person
GROUP BY 1
HAVING COUNT(*) > 1;
/* code provided by PROGIEZ */

182. Duplicate Emails LeetCode Solution in Java

N/A
// code provided by PROGIEZ

182. Duplicate Emails LeetCode Solution in Python

N/A
 # code by PROGIEZ

Additional Resources

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