Reversing Linked List - C++

Question

I wrote a function that should reverse a list.

So far, I can reverse only two items, but no more. I checked and double checked and still can\'t find the problem. I e

Answer 1

Your code is close, it is returning early.

List::ListNode *List::Reverse_List(ListNode *head) 
{
    ListNode *cur = head;
    ListNode *forward = NULL;
    ListNode *previous = NULL;

    while (cur != NULL) {
        //There is no need to use head here, cur will suffice
        //head = cur; //set the head to last node
        forward = cur->next; //save the next pointer in forward

        cur->next = previous; //change next to previous
        previous = cur;
        cur = forward;

        cout << "cur= " << cur->item << endl; //this is just to display the current value of cur

        //don't return here you have only adjusted one node
        //return head;
    }

    //at this point cur is NULL, but previous still holds the correct node
    return previous;
}