网站首页
编程语言
数据库
系统相关
其他分享
编程问答
Chefir
2024-10-25
G. Sakurako and Chefir
G.SakurakoandChefirGivenatreewith$n$verticesrootedatvertex$1$.WhilewalkingthroughitwithhercatChefir,Sakurakogotdistracted,andChefirranaway.TohelpSakurako,Kosukerecordedhis$q$guesses.Inthe$i$-thguess,heassumesthat