Consider the following code which deletes all the nodes in a linked list. Which of the following is the missing statement?
A) delete first;
B) delete temp;
C) destroy temp;
D) clear temp;

Question

Consider the following code which deletes all the nodes in a linked list.  Which of the following is the missing statement?
A) delete first; 
B) delete temp; 
C) destroy temp; 
D) clear temp;

Quizplus · Accepted Answer

The missing statement should be "delete temp" since "temp" is a temporary pointer variable that points to the current node being deleted. We should release the memory allocated to the current node before moving to the next node. "delete first" would only delete the first node, and "clear temp" and "destroy temp" are not valid statements.

Consider the Following Code Which Deletes All the Nodes in a Linked