When using a node pointer to traverse a linked list, we know we have reached the end of a list when
A) we encounter the new line character '
'.
B) we encounter a successor pointer value of NULL in the current node.
C) we arrive back at the beginning of the list.
D) we encounter a sentinel, usually 9999.
E) None of the above

Question

Quizplus · Accepted Answer

When we encounter a successor pointer value of NULL in the current node, it means that there are no more nodes to traverse and we have reached the end of the list. The other options (A, C, and D) are not reliable ways to determine the end of a linked list.

When Using a Node Pointer to Traverse a Linked List