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Problem: Linked List Cycle III

Medium
30 min
Explore how to identify and calculate the length of a cycle in a linked list by applying fast and slow pointer techniques. Learn to analyze the list structure and implement solutions to return the cycle length or zero when none exists.

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 [0,104][0, 10^4].

  • 105-10^5 \leq Node.value 105\leq 10^5

Problem
Ask
Submissions

Problem: Linked List Cycle III

Medium
30 min
Explore how to identify and calculate the length of a cycle in a linked list by applying fast and slow pointer techniques. Learn to analyze the list structure and implement solutions to return the cycle length or zero when none exists.

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 [0,104][0, 10^4].

  • 105-10^5 \leq Node.value 105\leq 10^5