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Problem: Linked List Cycle IV

Medium
30 min
Explore how to detect and remove cycles in a singly linked list by applying fast and slow pointer techniques. Learn to modify the list in place, ensuring it remains acyclic while preserving node order. Develop practical skills to address cycle detection problems common in coding interviews.

Statement

Given the head of a singly linked list, implement a function to detect and remove any cycle present in the list. A cycle occurs when a node's next pointer links back to a previous node, forming a loop within the list.

The function must modify the linked list in place, ensuring it remains acyclic while preserving the original node order. If no cycle is found, return the linked list as is.

Constraints:

  • The number of nodes in the list is in the range [0,104][0, 10^4].

  • 105-10^5 \leq Node.value 105\leq10^5

Problem
Ask
Submissions

Problem: Linked List Cycle IV

Medium
30 min
Explore how to detect and remove cycles in a singly linked list by applying fast and slow pointer techniques. Learn to modify the list in place, ensuring it remains acyclic while preserving node order. Develop practical skills to address cycle detection problems common in coding interviews.

Statement

Given the head of a singly linked list, implement a function to detect and remove any cycle present in the list. A cycle occurs when a node's next pointer links back to a previous node, forming a loop within the list.

The function must modify the linked list in place, ensuring it remains acyclic while preserving the original node order. If no cycle is found, return the linked list as is.

Constraints:

  • The number of nodes in the list is in the range [0,104][0, 10^4].

  • 105-10^5 \leq Node.value 105\leq10^5