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Grokking the Coding Interview Patterns in Go

Solution: Linked List Cycle IV

Explore how to identify and remove cycles in singly linked lists using the fast and slow pointers technique. This lesson teaches you to detect any loops efficiently, find the cycle's starting point, and restore the list to a linear form, enhancing your problem-solving skills in linked list manipulation.

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Statement

Given the head of a singly linked list, implement a function to detect and remove any cycle present in the list. A cycle occurs when a node's Next pointer links back to a previous node, forming a loop within the list.

The function must modify the linked list in place, ensuring it remains acyclic while preserving the original node order. If no cycle is found, return the linked list as is.

Constraints:

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