Update 0019.删除链表的倒数第N个节点.md

2022-09-27 21:01:31 +08:00 · 2022-09-27 21:01:31 +08:00 · 87c505371d
parent 28460715b6
commit 87c505371d
1 changed files with 0 additions and 4 deletions
--- a/problems/0019.删除链表的倒数第N个节点.md
+++ b/problems/0019.删除链表的倒数第N个节点.md
@ -91,10 +91,6 @@ public ListNode removeNthFromEnd(ListNode head, int n){
    ListNode dummyNode = new ListNode(0);
    dummyNode.next = head;

-    //排除示例 2 的情况：head = [1], n = 1
-    if (head == null)
-        return null;
-
    ListNode fastIndex = dummyNode;
    ListNode slowIndex = dummyNode;