LeetCode 2 Add two numbers

In this video, I will show you how to solve the 2. Add Two Numbers problem of LeetCode. This problem asks you to add two numbers that are represented by two linked lists, where each node contains a single digit. The digits are stored in reverse order, and you need to return the sum as a linked list as well.

I will explain the logic and the code of the solution, and also run the code on the LeetCode platform to verify the results. The solution uses a dummy node to create the result list, and a carry variable to store the carry-over from each addition. The solution iterates through both lists until both are exhausted, and handles the case when there is a remaining carry at the end. The solution has a time complexity of O(max(m, n)), where m and n are the lengths of the two lists, and a space complexity of O(max(m, n)) as well.

Tags:

- LeetCode
- Linked List
- Addition
- Problem Solving
- Python

Скачать видео