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docs/notes/23. 链表中环的入口结点.md
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@ -12,7 +12,7 @@
在相遇点，slow 要到环的入口点还需要移动 z 个节点，如果让 fast 重新从头开始移动，并且速度变为每次移动一个节点，那么它到环入口点还需要移动 x 个节点。在上面已经推导出 x=z，因此 fast 和 slow 将在环入口点相遇。
<img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/bb7fc182-98c2-4860-8ea3-630e27a5f29f.png" width="500"/>
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/bb7fc182-98c2-4860-8ea3-630e27a5f29f.png" width="500"/> </div><br>
```java
public ListNode EntryNodeOfLoop(ListNode pHead) {
@ -31,3 +31,10 @@ public ListNode EntryNodeOfLoop(ListNode pHead) {
return slow;
}
```
<div align="center"><img width="320px" src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/githubio/公众号二维码-1.png"></img></div>