1045. Customers Who Bought All Products LeetCode Solution

In this guide, you will get 1045. Customers Who Bought All Products LeetCode Solution with the best time and space complexity. The solution to Customers Who Bought All Products 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. Customers Who Bought All Products solution in C++
4. Customers Who Bought All Products solution in Java
5. Customers Who Bought All Products solution in Python
6. Additional Resources

Problem Statement of Customers Who Bought All Products

Table: Customer

+————-+———+
| Column Name | Type |
+————-+———+
| customer_id | int |
| product_key | int |
+————-+———+
This table may contain duplicates rows.
customer_id is not NULL.
product_key is a foreign key (reference column) to Product table.

Table: Product

+————-+———+
| Column Name | Type |
+————-+———+
| product_key | int |
+————-+———+
product_key is the primary key (column with unique values) for this table.

Write a solution to report the customer ids from the Customer table that bought all the products in the Product table.
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

1045. Customers Who Bought All Products LeetCode Solution in C++

SELECT customer_id
FROM Customer
GROUP BY 1
HAVING COUNT(DISTINCT product_key) = (
    SELECT COUNT(*) FROM Product
  );
/* code provided by PROGIEZ */

1045. Customers Who Bought All Products LeetCode Solution in Java

N/A
// code provided by PROGIEZ

1045. Customers Who Bought All Products LeetCode Solution in Python

N/A
 # code by PROGIEZ

Additional Resources

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