Leetcode 简单十九 删除排序链表中的重复元素
删除排序链表中的重复元素:
PHP 16ms:
/**
* Definition for a singly-linked list.
* class ListNode {
* public $val = 0;
* public $next = null;
* function __construct($val) { $this->val = $val; }
* }
*/
class Solution {
/**
* @param ListNode $head
* @return ListNode
*/
function deleteDuplicates($head) {
$curr = $head;
while($curr->next != null){
if($curr->val == $curr->next->val){
$curr->next = $curr->next->next;
}else{
$curr = $curr->next;
}
}
return $head;
}
}