Solution: Middle of the Linked List
Explore the fast and slow pointers method to identify the middle node in a singly linked list. Understand how advancing pointers at different speeds can pinpoint the midpoint in a single pass, optimizing time and space efficiency.
Statement
Given the head of a singly linked list, return the middle node of the linked list. If the number of nodes in the linked list is even, there will be two middle nodes, so return the second one.
Constraints:
Let n be the number of nodes in a linked list.
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n