Name		Name	Last commit message	Last commit date
parent directory ..
README.md		README.md
invert-binary-tree.go		invert-binary-tree.go
invert-binary-tree_test.go		invert-binary-tree_test.go

README.md

226. Invert Binary Tree

题目

Invert a binary tree.

     4
   /   \
  2     7
 / \   / \
1   3 6   9

to

     4
   /   \
  7     2
 / \   / \
9   6 3   1

解题思路

见程序注释