README.md

Author: bestgopher

README.md

@@ -1,6 +1,6 @@
 # leetcode
 
-当前已刷：223
+当前已刷：224
 
 ### 题目
 - 1：两数之和
@@ -210,6 +210,9 @@
 - 102：二叉树的层序遍历
     - [src](https://github.com/rustors/leetcode/blob/main/src/bin/binary-tree-level-order-traversal.rs)
     - [leetcode](https://leetcode-cn.com/problems/binary-tree-level-order-traversal/)
+- 103：二叉树的锯齿形层序遍历
+    - [src](https://github.com/rustors/leetcode/blob/main/src/bin/binary-tree-zigzag-level-order-traversal.rs)
+    - [leetcode](https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal/)
 - 104：二叉树的最大深度
     - [src](https://github.com/rustors/leetcode/blob/main/src/bin/maximum-depth-of-binary-tree.rs)
     - [leetcode](https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/)