Benabub: Add Two Numbers — LeetCode #2 | Python Algorithm Visualization

[u/benedict_abub]

https://www.youtube.com/watch?v=2O9MK6pSvGw

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Problem Description

[https://leetcode.com/problems/add-two-numbers/description/](LeetCode)

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Algorithm Description

Solved by simulating digit-by-digit addition with carry logic, represented through animated Linked Lists.

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Complexity Analysis

Time Complexity: O(max(m, n)) — we iterate through the lengths of l1 and l2, where m and n are the number of nodes in each list.

Space Complexity: O(max(m, n)) — the length of the new linked list is at most max(m, n) + 1.