如果不是满二叉树，会因为不对称更早退出搜索，时间开销更低。
by _CHO @ 2024-03-12 16:43:00
orz
by Alliy666 @ 2024-03-13 13:43:11
orz
by ltzx_2022_maorx_1 @ 2024-07-06 13:32:26
@[_CHO](/user/218405) cccccccccccorz
by Br00k5xx @ 2024-07-30 19:49:58