题解 | #删除有序链表中重复的元素-I#

import java.util.*;

/*
 * public class ListNode {
 *   int val;
 *   ListNode next = null;
 * }
 */

public class Solution {
    /**
     * 
     * @param head ListNode类 
     * @return ListNode类
     */
    public ListNode deleteDuplicates (ListNode head) {
        // write code here
        ListNode cur = head;
        while (cur != null) {
            ListNode next = cur.next;
            while (next != null && cur.val == next.val) {
                next = next.next;
            }
            cur.next = next;
            cur = next;
        }
        return head;
    }
}