Partition List - Linked List Two Pointer Algorithm Explained

Published: 10 January 2026
on channel: CodeLucky

Learn how to solve the Partition List problem efficiently! 🚀

In this video, we break down the logic for partitioning a linked list around a value `x` such that all nodes less than `x` come before nodes greater than or equal to `x`, while preserving the original relative order.

We cover:
✅ The "Two Dummy Heads" strategy
✅ Visualizing pointer manipulation
✅ Avoiding infinite cycles (common pitfall!)
✅ Time and Space complexity analysis

This is a classic interview question found on platforms like LeetCode (Problem 86). Perfect for beginners learning data structures.

#linkedlist #leetcode #algorithm #codinginterview #datastructures #python #java

Chapters:
00:00 - Partition List Around Value
00:15 - The Problem
00:38 - Visual Example
01:04 - The Strategy
01:24 - Dummy Nodes
01:44 - Traversal Logic
02:04 - Visualization
02:22 - Connecting the Lists
02:42 - Important Detail
03:01 - Complexity
03:24 - Recap
03:44 - Outro

🔗 Stay Connected:
▶️ YouTube:    / @thecodelucky
📱 Instagram:   / thecodelucky
📘 Facebook:   / codeluckyfb
🌐 Website: https://codelucky.com

⭐ Support us by Liking, Subscribing, and Sharing!
💬 Drop your questions in the comments below
🔔 Hit the notification bell to never miss an update

#CodeLucky

On this page of the site you can watch the video online Partition List - Linked List Two Pointer Algorithm Explained with a duration of hours minute second in good quality, which was uploaded by the user CodeLucky 10 January 2026, share the link with friends and acquaintances, this video has already been watched 9 times on youtube and it was liked by 0 viewers. Enjoy your viewing!

54,509