---
title: "Discussion on \"Day #6: XOR Doubly Linked List\" | Hashnode"
description: "Discussion on \"Day #6: XOR Doubly Linked List\". Hello.\nToday is the Day 6 of the #100DaysOfCodeChallenge. Received a problem previously asked by Google with a hard tag to it.\nThe Question On Day #6:\nAn XOR linked list is a more memory efficient doubly linked list. Instead of each node holding next..."
url: "https://hashnode.com/posts/day-6-xor-doubly-linked-list/60247d5a80da6c44eadf7acd"
---

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# [Day #6: XOR Doubly Linked List](https://blog.nmreddy.me/day-6-xor-doubly-linked-list?utm_source=hashnode&utm_medium=feed)

Hello. Today is the Day 6 of the #100DaysOfCodeChallenge. Received a problem previously asked by Google with a hard tag to it. The Question On Day #6: An XOR linked list is a more memory efficient doubly linked list. Instead of each node holding next...

Jun 16, 2020 · 1 min read · blog.nmreddy.me  
Updated Apr 14, 2021  
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## Written by

[Manish Reddy Nandineni](https://hashnode.com/@nmreddy)

@nmreddy · Hyderabad, India

  
[View profile](https://hashnode.com/@nmreddy)

Developer | Tech Enthusiast

I am a Software Engineer from Hyderabad. Here to learn and share what I learn.

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