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 approach. This lesson helps you understand how traversing the list with two pointers at different speeds locates the midpoint in one pass, optimizing time to O(n) and space to O(1). You'll gain practical insight into solving linked list problems efficiently.
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