[LeedCode OJ]#83 Remove Duplicates from Sorted List

/**
 * Definition for singly-linked list.
 * struct ListNode {
 *     int val;
 *     ListNode *next;
 *     ListNode(int x) : val(x), next(NULL) {}
 * };
 */
class Solution
{
	public:
		ListNode* deleteDuplicates(ListNode* head)
		{
			if(head==nullptr||head->next==nullptr)
				return head;
			ListNode *node = new ListNode(head->val);
			ListNode *newlist = node;
			ListNode *cur = head;
			while(cur!=nullptr)
			{
				if(cur->val!=newlist->val)
				{
					newlist->next = new ListNode(cur->val);
					newlist = newlist->next;
				}
				cur = cur->next;
			}
			return node;
		}
};