From a718cc33c7c5ab129b5ade803e6bb18a9f27ec21 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Antonio=20Chac=C3=B3n=20Guti=C3=A9rrez?= <138903866+joseantoniochacon@users.noreply.github.com> Date: Tue, 25 Jun 2024 19:19:03 -0600 Subject: [PATCH] Create README - LeetHub --- 0182-duplicate-emails/README.md | 41 +++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 0182-duplicate-emails/README.md diff --git a/0182-duplicate-emails/README.md b/0182-duplicate-emails/README.md new file mode 100644 index 0000000..9a7036f --- /dev/null +++ b/0182-duplicate-emails/README.md @@ -0,0 +1,41 @@ +
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 1:
+ +Input: +Person table: ++----+---------+ +| id | email | ++----+---------+ +| 1 | a@b.com | +| 2 | c@d.com | +| 3 | a@b.com | ++----+---------+ +Output: ++---------+ +| Email | ++---------+ +| a@b.com | ++---------+ +Explanation: a@b.com is repeated two times. ++