leetcode83. 删除排序链表中的重复元素

给定一个排序链表，删除所有重复的元素，使得每个元素只出现一次。

示例 1:

输入: 1->1->2
输出: 1->2

示例 2:

输入: 1->1->2->3->3
输出: 1->2->3

/**
 * Definition for singly-linked list.
 * struct ListNode {
 *     int val;
 *     struct ListNode *next;
 * };
 */
struct ListNode* deleteDuplicates(struct ListNode* head) {
    struct ListNode* h = head;
    struct ListNode* cur = h;  
    if(cur == NULL || cur->next == NULL) return cur;
    while(cur)
    {
         struct ListNode* tmp = cur->next;
        if(tmp && cur->val == tmp->val)
        {
            cur->next = tmp->next;
            free(tmp);
            continue;/*继续比较下一个元素*/
        }
        cur = cur->next;
    }
    return h;
}

 

转载于:https://www.cnblogs.com/xinfenglee/p/10060860.html