Solution -「BZOJ 4231」回忆树
date: '2023-10-09'title: 'Solution -「BZOJ 4231」回忆树'Desc.Link.树 $T=(V,E)$, 询问 $Q=\{q_i\}$,每次询问:$u~...
In mathematics you don't understand things, you just get used to them.
In mathematics you don't understand things, you just get used to them.