?
by User904032 @ 2022-11-30 11:03:10
大概就是找最深的公共祖先，不知道最后的输出有没有推错
by Soul_Love @ 2022-11-30 15:13:29
@[colin1112](/user/904032)
by Soul_Love @ 2022-11-30 15:52:24
@[Soul_Love](/user/110009) ？啥意思
by User904032 @ 2022-11-30 21:16:03