题解 | #删除有序链表中重复的元素-I#

/**
 * struct ListNode {
 *	int val;
 *	struct ListNode *next;
 * };
 */
/**
 * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
 *
 * 
 * @param head ListNode类 
 * @return ListNode类
 */
#include <stdlib.h>
struct ListNode* deleteDuplicates(struct ListNode* head ) {
    // write code here
    if(head == NULL || head->next == NULL)
    {
        return head;
    }

    struct ListNode* cur = head;
    while(cur->next != NULL)
    {
        if(cur->val == cur->next->val)
        {
            cur->next = cur->next->next;
        }
        else 
        {
            cur = cur->next;
        }
    }
    return head;
}