Solution: Middle of the Linked List
Explore how to locate the middle node in a singly linked list by applying the fast and slow pointers technique. Understand why the slow pointer accurately identifies the middle node in both odd and even-length lists. Practice implementing this approach to achieve a time complexity of O(n) and constant space usage, improving efficiency over naive methods.
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