https://leetcode.com/problems/remove-duplicates-from-sorted-list/

1. resign NEXT:

  1. //12 ms    12 MB
  3. /**
  4.  * Definition for singly-linked list.
  5.  * struct ListNode {
  6.  *     int val;
  7.  *     ListNode *next;
  8.  *     ListNode(int x) : val(x), next(NULL) {}
  9.  * };
  10.  */
  11. class Solution {
  12. public:
  13.     ListNode* deleteDuplicates(ListNode* head) {
  14.         ListNode* curr = head;
  15.         while(curr!=NULL && curr->next!=NULL){
  16.             if(curr->val==curr->next->val){
  17.                 curr->next = curr->next->next;
  18.             } else{
  19.                 curr = curr->next;
  20.             }
  21.         }
  22.         return head;
  23.     }
  24. };