题解 | #删除有序链表中重复的元素-I#

/**

• struct ListNode {
• int val;
• struct ListNode *next;
• }; */

class Solution { public: /** * * @param head ListNode类 * @return ListNode类 / ListNode deleteDuplicates(ListNode* head) { // write code here auto save_head = head; auto h1 = head; auto h2 = head -> next; bool flag = 1; while(h1 && h2) { while(h2 && h1 -> val == h2 -> val) { h2 = h2 -> next; } h1 -> next = h2; h1 = h2; h2 = h2 -> next; } return save_head; } };