Solution: Linked List Cycle
Explore how to detect cycles in a linked list by using fast and slow pointers. This lesson teaches you to implement an optimized algorithm that checks for cycles in a single pass without extra space, helping you understand an essential coding interview pattern.
Statement
Given the head of a linked list, determine whether the list contains a cycle. A cycle exists if a node in the list can be revisited by continuously following the next pointers. Return TRUE if a cycle is present; otherwise, return FALSE.
Constraints:
Let n be the number of nodes in a linked list.
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n