Leetcode 83 Linked-list delete duplicate value

# Leetcode 83 Linked-list delete duplicate value #### 基本上LeetCode 已規範好 Linked_node使用不用自己寫 My Solution 時間O(n) 空間 O(1) --- ``` python= def deleteDuplicates(self, head: ListNode) -> ListNode: current = head prev = current while current: if current.val == prev.val: ## 兩個相等 prev.next = current.next # 前一個連結至 current 後一個，但prev停留 else: ## 不相等, prev 更新為 current prev = current current = current.next return head ``` ###### tags: `LeetCode` `linked list` `node` `duplicate`