Solution: Middle of the Linked List
Explore how to find the middle node in a singly linked list by using fast and slow pointers that traverse the list at different speeds. Understand how this technique works for both odd and even length lists and how it optimizes time to O(n) and space to O(1). This lesson helps you implement this core approach confidently for coding interviews.
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 -
Node.value