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Solution: Middle of the Linked List

Explore how to locate the middle node of a singly linked list by applying two common methods: calculating list length and using two pointers. Understand the implementation and complexity analysis to prepare for coding interviews with practical Python examples.

Statement

Given the head of a singly linked list, return the middle node of the linked list.

If there are two middle nodes, return the second middle node. This happens when the length of the list is even, and the second middle node occurs at length2\frac {length}{2}. Otherwise, if the length of the list is odd, the middle node occurs at length2+1\frac {length}{2}+1 ...