Solution: Middle of the Linked List
Explore how to determine the middle node of a singly linked list by using the fast and slow pointer technique. Understand how advancing pointers at different speeds helps identify the midpoint in a single pass with constant space usage.
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.
-
n