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Solution: Linked List Cycle III

Explore how to detect cycles in a linked list using fast and slow pointers, then measure the cycle's length by counting nodes within the loop. Understand the step-by-step algorithm and its time and space complexity for effective cycle detection and length calculation.

Statement

Given the head of a linked list, determine the length of the cycle present in the linked list. If there is no cycle, return 0.

A cycle exists in a linked list if there is some node in the list that can be reached again by continuously following the next pointer.

Constraints:

  • The number of nodes in the list is in the range ...