NowCoder
Topic describes
/ *
public class ListNode {
int val;
ListNode next = null;
ListNode(int val) {
this.val = val;
}
}
* /
public class Solution {
public ListNode deleteDuplication(ListNode pHead)
{
if(pHead == null || pHead.next == null)
return pHead;
ListNode next = pHead.next;
if(pHead.val == next.val) {
while(next ! =null && pHead.val == next.val)
next = next.next;
return deleteDuplication(next);
}else {
pHead.next = deleteDuplication(next);
return pHead;
}
}
}
Copy the code