Solution: Linked List Cycle
Explore how to detect cycles in a linked list by using fast and slow pointers. This lesson guides you through implementing an optimized algorithm that moves pointers at different speeds to identify cycles efficiently, ensuring O(n) time and constant space complexity.
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