Solution: Linked List Cycle
Explore how to determine if a linked list contains a cycle by applying the fast and slow pointers method. Understand the approach, compare it with naive solutions, and implement an efficient algorithm that runs in linear time with constant space.
Statement
Given the head of a linked list, determine whether the list contains a cycle. A cycle exists if a node in the list can be revisited by continuously following the next pointers. Return TRUE if a cycle is present; otherwise, return FALSE.
Constraints:
Let n be the number of nodes in a linked list.
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n