Solution: Linked List Cycle IV
Explore how to detect and remove cycles in a singly linked list using the fast and slow pointer technique. Understand Floyd's Cycle Detection method and how to restore the linked list to a linear form while preserving node order. This lesson helps you implement this cycle detection and removal efficiently with O(n) time and O(1) space complexity.
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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:
The number of nodes in the list is in the range
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