Middle of the Linked List - LeetCode 876 - Python - Visually Explained
In this 3-minute video, we break down a classic linked list problem — finding the middle node. Unlike arrays, linked lists don’t support random access, so you can only traverse them from the head node. We start with the simple two-pass approach, then focus on a more efficient fast-and-slow pointer technique, where the fast pointer moves two steps and the slow pointer moves one step to find the middle in a single pass. The video covers both odd and even node cases, with a clean Python code example. Finding the middle node is a fundamental skill in divide-and-conquer algorithms for linked lists, such as merge sort and binary search. It’s practical, efficient, and a must-know for every programmer.
#algorithm #datastructures #linkedlist #leetcode #python #motioncanvas