Challenge: Linked List Cycle

Try to solve the Linked List Cycle problem.

We'll cover the following


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.


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

  • 00 \leq n 500\leq 500

  • 5×103-5 \times 10^3 \leq 5×103\leq 5\times 10^3


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