Given the following function declaration

Question

void insert( NodePtr afterMe, int num);
//PRE: afterMe points to some node in the non-empty list
//POST: A new node containing num is inserted after afterMe.

void insert(NodePtr afterMe, int num)
{
// which of the following function definitions correctly implement this //function?
}
a. afterMe->link = new Node;
afterMe->link->data = num;
afterMe -> link ->link=afterMe->link;
b. NodePtr tmp=new Node;
tmp-> data = num;
afterMe -> link = tmp;
tmp->link = afterMe -> link;
c. NodePtr tmp=new Node;
tmp-> data = num;
tmp->link = afterMe -> link;
afterMe -> link = tmp;
d. NodePtr tmp=new Node;
tmp-> data = num;
afterMe -> link = tmp;
tmp->link = NULL;

Answer 1

c. NodePtr tmp=new Node;
tmp-> data = num;
tmp->link = afterMe -> link;
afterMe -> link = tmp;