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Solution: Linked List Cycle

Explore how to detect cycles in linked lists by applying Floyd's cycle-finding algorithm. This lesson helps you implement two-pointer techniques to identify cycles efficiently, analyze the time and space complexity, and prepares you to solve similar coding interview problems.

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Statement

Given the head of a linked list, check whether or not a cycle is present in the linked list. A cycle is present in a linked list if at least one node can be reached again by traversing the next pointer. If a cycle exists, return TRUE; otherwise, return FALSE.

Constraints:

Let n be the number of nodes in a linked list.

  • 00 \leq n 500\leq 500

  • 5×103-5 \times 10^3 \leq ...