This problem asks whether a given singly linked list is a palindrome. A palindrome is a word, phrase, or sequence that reads the same backward as forward. In this case, the list is a palindrome if the elements in the list read the same forward as backward.
The candidate's solution correctly checks if a singly linked list is a palindrome. The approach is to use a slow and fast pointer to find the middle of the list, reverse the second half of the list, and then compare the two halves. One potential improvement to the solution would be to use a stack to keep track of the first half of the list instead of reversing the second half. This would avoid having to reverse the second half of the list, which is unnecessary work.
Evaluated at: 2022-10-23 23:29:24