【力扣 简单 C】83. 删除排序链表中的重复元素

目录

题目

解法一：迭代

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题目

解法一：迭代

struct ListNode* delete(struct ListNode* head)
{
    if (!head)
        return head;
    
    struct ListNode* retHead = head;
    while (head->next)
    {
        if (head->val == head->next->val)
        {
            struct ListNode* freeNode = head->next;
            head->next = head->next->next;
            free(freeNode);
        }
        else
            head = head->next;
    }
    return retHead;
}

struct ListNode* deleteDuplicates(struct ListNode* head)
{
    return delete(head);
}