Leetcode 83 Remove Duplicates from Sorted List 链表
就是将链表中的重复元素去除
我的方法很简单就是如果链表的前后元素相同的话,将后一个元素删除
1 /** 2 * Definition for singly-linked list. 3 * struct ListNode { 4 * int val; 5 * ListNode *next; 6 * ListNode(int x) : val(x), next(NULL) {} 7 * }; 8 */ 9 class Solution { 10 public: 11 ListNode* deleteDuplicates(ListNode* head) { 12 ListNode* now = head; 13 while(now && now->next){ 14 ListNode* next = now->next; 15 if(now->val == next->val){ 16 now->next = next->next; 17 delete next; 18 } 19 else{ 20 now = now->next; 21 } 22 } 23 return head; 24 } 25 };