Backups/CS-Notes
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

auto commit

Browse Source
This commit is contained in:
CyC2018
2019-04-23 23:03:14 +08:00
parent 4f6d5b0478
commit 169cbbb5b1
12 changed files with 12 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
docs/notes/剑指 Offer 题解 - 60~68.md
View File

@ -285,12 +285,12 @@ public int StrToInt(String str) {
### 二叉查找树
<div align="center"> <img src="https://gitee.com/CyC2018/CS-Notes/raw/master/docs/pics/b39a085e-e7a2-4657-b75e-ba1652a4b132.jpg" width="300"/> </div><br>
[Leetcode : 235. Lowest Common Ancestor of a Binary Search Tree](https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/description/)
二叉查找树中，两个节点 p, q 的公共祖先 root 满足 root.val >= p.val && root.val <= q.val。
<div align="center"> <img src="https://gitee.com/CyC2018/CS-Notes/raw/master/docs/pics/047faac4-a368-4565-8331-2b66253080d3.jpg" width="250"/> </div><br>
```java
public TreeNode lowestCommonAncestor(TreeNode root, TreeNode p, TreeNode q) {
if (root == null)
@ -305,12 +305,12 @@ public TreeNode lowestCommonAncestor(TreeNode root, TreeNode p, TreeNode q) {
### 普通二叉树
<div align="center"> <img src="https://gitee.com/CyC2018/CS-Notes/raw/master/docs/pics/37a72755-4890-4b42-9eab-b0084e0c54d9.png" width="300"/> </div><br>
[Leetcode : 236. Lowest Common Ancestor of a Binary Tree](https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/description/)
在左右子树中查找是否存在 p 或者 q，如果 p 和 q 分别在两个子树中，那么就说明根节点就是最低公共祖先。
<div align="center"> <img src="https://gitee.com/CyC2018/CS-Notes/raw/master/docs/pics/d27c99f0-7881-4f2d-9675-c75cbdee3acd.jpg" width="250"/> </div><br>
```java
public TreeNode lowestCommonAncestor(TreeNode root, TreeNode p, TreeNode q) {
if (root == null || root == p || root == q)