[LeetCode] 951. Flip Equivalent Binary Trees_Medium tag: DFS, divide and conquer
2021-08-21 21:00 Johnson_强生仔仔 阅读(26) 评论(0) 编辑 收藏 举报
For a binary tree T, we can define a flip operation as follows: choose any node, and swap the left and right child subtrees. A binary tree X is flip e