二级公共基础知识!

2024-12-27 21:33:51
推荐回答(1个)
回答1:

5种
....0...0....0......0.........0..
.../.../......\......\......./.\.
..0...0........0......0.....0...0
./.....\....../........\.........
0.......0....0..........0........

二叉树,顾名思义,其一个节点下面允许有两个分支,或左或右,已知三个节点,如上图的0,就一共有五种情况,自己画一下就知道