What are Sentinel Nodes? | Partition List LeetCode Problem in Java | Geekific

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Linked lists are among the simplest and most common data structures encountered in coding interviews. Therefore, in this video, we solve our very first linked list problem of this series while attempting to explain what sentinel nodes are and how they can be used to optimize our solutions.

LeetCode Problems solved in this video:

Timestamps:
00:00 Introduction
00:07 Partition List Problem Definition
00:44 Intuitive Solution Implemented in Java
02:51 Optimize Solution with Sentinel Nodes
04:46 Thanks for Watching!

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I had a similar task at FAANG interview. Firstly, I wrote the code that creates two additional lists, and then I created two sentinel nodes for the result lists and iterated through the original list.

yankyan
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Lebnene? If yes fik t2elle kif t3allamet cs? Your explanations are on point i learn a ton from you 🙏

aldoumene
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