LeetCode 2. Add Two Numbers draft

gistfile1.txt

/**
 * Definition for singly-linked list.
 * struct ListNode {
 *     int val;
 *     ListNode *next;
 *     ListNode(int x) : val(x), next(NULL) {}
 * };
 */
class Solution {
public:
    ListNode* addTwoNumbers(ListNode* l1, ListNode* l2) {
        ListNote* head = new ListNode;
        
        while(l1->next != NULL && l2->next != NULL)
        {
            if (l1->next == NULL)
            l1Val = l1->val;
            l2Val = l2->val;
            
            bool carryOver = false;
            int sum = l1Val + l2Val;
            if (sum > 10) 
            {
                sum %= 10;
                carryOver = true;
            }
            
            ListNode* nextNode = new ListNode(sum);
            
                
        }
        
    }
};