CodewarsLinkedList

This repository contains solutions to Linked List problems from the Codewars platform.

Task Structure

Simple

• Convert a linked list to a string
• Parse a linked list from a string
• Linked Lists - Push & BuildOneTwoThree
• Linked Lists - Get Nth Node
• Linked Lists - Move Node

Middle

• Linked Lists - Sorted Insert
• Linked Lists - Recursive Reverse
• Linked Lists - Remove Duplicates

Hard

• Swap Node Pairs In Linked List
• Linked Lists - Alternating Split
• Can you get the loop? (Implemented using the Fast and Slow pointers pattern)

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Key Concepts: Fast and Slow Pattern

The Fast and Slow pointers pattern (also known as Floyd's Cycle-Finding Algorithm) is an efficient approach for linked list traversal. It is primarily used for:

1. Detecting cycles in a linked list.
2. Finding the middle element of a list.
3. Identifying the starting point of a cycle.

The algorithm uses two pointers moving at different speeds (typically one step and two steps). This allows solving complex list problems with O(n) time complexity and O(1) space complexity.