请教一道算法题，
Write a function that will return the 5th element from the end ( not from the head of the list) in a singly linked list of integers, in one pass, and then provide a set of test cases against that function that would make you comfortable with shipping this code to customers. Write a function that will return th
Write a function that will return the 5th element from the end ( not from the head of the list) in a singly linked list of integers, in one pass, and then provide a set of test cases against that function that would make you comfortable with shipping this code to customers. Write a function that will return th
