---
title: "Discussion on \"Day 3 - LeetCode Learning Log\" | Hashnode"
description: "Discussion on \"Day 3 - LeetCode Learning Log\". 🚀 Building Blocks I Practiced Today\n\nSlow Fast Pointer - Finding middle of LL\n\nAlso called as Hare & Tortoise Algorithm.\n\nUsed for detecting cycle, finding middle, happy number, etc.\n\nO(n) time, O(1) space\n\n\n\n\n    // Finding middle of a Linked List\n..."
url: "https://hashnode.com/posts/day-3-leetcode-learning-log/68be422171e97874ad3c313c"
---

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# [Day 3 - LeetCode Learning Log](https://ayush-30-days-of-leetcode.hashnode.dev/day-3-leetcode-learning-log?utm_source=hashnode&utm_medium=feed)

🚀 Building Blocks I Practiced Today Slow Fast Pointer - Finding middle of LL Also called as Hare & Tortoise Algorithm. Used for detecting cycle, finding middle, happy number, etc. O(n) time, O(1) space // Finding middle of a Linked List ...

Sep 6, 2025 · 2 min read · ayush-30-days-of-leetcode.hashnode.dev  
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