@[kirihara233](/user/701221) kiri又在卷题力！什么时候给我讲
$\mathrm{Splay}$ 森林，欠着了噢。
by __er @ 2022-10-26 09:21:25
@[__er](/user/713955) 不是blog有吗qwq
by char_cha_ch @ 2022-10-26 12:40:34
@[kirihara233](/user/701221) 哦我来看看o
by __er @ 2022-10-26 13:58:17
@[kirihara233](/user/701221) 虽然过了好久了但是
两个错误都在query
query要return ret不是u
if (ch[u][!v])里面 u = ch[u][!v];
by ben090302 @ 2023-01-30 13:12:10