From 5e08d1b8108b9c99cf1c2e8bb1ae12b5f6bcf822 Mon Sep 17 00:00:00 2001
From: ZerenZhang2022 <118794589+ZerenZhang2022@users.noreply.github.com>
Date: Sun, 5 Mar 2023 16:21:15 -0500
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修改python版本为：fast先走n+1步 （旧版本是fast走n步，然后判断fast.next!=None），这样与上面的讲解一致
---
 problems/0019.删除链表的倒数第N个节点.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 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
index b0641b5f..4e4474ca 100644
--- 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
@@ -129,10 +129,10 @@ class Solution:
         head_dummy.next = head
 
         slow, fast = head_dummy, head_dummy
-        while(n!=0): #fast先往前走n步
+        while(n>=0): #fast先往前走n+1步
             fast = fast.next
             n -= 1
-        while(fast.next!=None):
+        while(fast!=None):
             slow = slow.next
             fast = fast.next
         #fast 走到结尾后，slow的下一个节点为倒数第N个节点