To find the middle node of a singly linked list, simply traverse the list until you reach the middle. If the list has an even number of nodes, return the node at the end of the first half of the list.

A.I. Evaluation of the Solution

The candidate's solution is correct and demonstrates a level of completeness. The approach is also optimal, as it only requires one pass through the list.

Evaluated at: 2022-11-20 06:16:11