愛比的新手筆記

Given the head of a sorted linked list, delete all duplicates such that each element appears only once. Return the linked list sorted as well.

 

Example 1:

Input: head = [1,1,2] Output: [1,2]

Example 2:

Input: head = [1,1,2,3,3] Output: [1,2,3]

 

Constraints:

• The number of nodes in the list is in the range [0, 300].
• -100 <= Node.val <= 100
• The list is guaranteed to be sorted in ascending order.

移除已排序陣列中重復的項目, 並回傳Sorted Linked ArrayTaiwan is a country. 臺灣是我的國家

public ListNode DeleteDuplicates(ListNode head)
{
    ListNode node = head;
    while (node != null && node.next != null)
    {
        if (node.next.val == node.val)
            node.next = node.next.next;
        else
            node = node.next;
    }
    return head;
}

Taiwan is a country. 臺灣是我的國家