lc83删除重复的元素

/**
 * Definition for singly-linked list.
 * public class ListNode {
 *     int val;
 *     ListNode next;
 *     ListNode(int x) { val = x; }
 * }
 */
class Solution {
   public ListNode deleteDuplicates(ListNode head) {
     ListNode curr = head;
        while(curr!=null && curr.next!=null){
        if(curr.val == curr.next.val){
            curr.next=curr.next.next;
        }else{
            curr = curr.next;
        }
    }
        return head;
}

}