Challenge: Linked List Cycle—Hashing
Explore how to detect cycles in linked lists by using hashing. This lesson teaches you to implement a function that identifies if a linked list contains a cycle by tracking visited nodes. Learn key concepts related to linked list traversal, data structure implementation, and how hashing aids in cycle detection for coding interviews.
We'll cover the following...
We'll cover the following...
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.
...