LeetCode 3465: Find Products with Valid Serial Numbers Solution
Master LeetCode problem 3465 (Find Products with Valid Serial Numbers), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
3465. Find Products with Valid Serial Numbers
Problem Explanation
Explanation:
To solve this problem, we can use a regular expression pattern to match valid serial numbers within the description of each product. We will iterate through each product's description and check if it contains a valid serial number pattern. If a valid serial number is found, we include that product in the result table.
- We will use the regular expression
SN\d{4}-\d{4}to match the valid serial number pattern. - Iterate through each product's description.
- If a valid serial number is found, add the product to the result table.
- Order the result table by product_id in ascending order.
Time complexity: O(n*m) where n is the number of products and m is the average length of descriptions. Space complexity: O(1) excluding the space required for the result table.
:
Solution Code
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