@[chen_zhe](/space/show?uid=8457)
by ezoixx118 @ 2018-09-17 12:54:42
orz
by ezoixx130 @ 2018-09-17 13:08:41
@[ezoixx118](/space/show?uid=30541) BZOJ和XSY上都只要输出答案的第一行,本题还要在第二行输出方案,而且这题缺spj
by Ebola @ 2018-09-27 21:57:46
@[Ebola](/space/show?uid=20158) orz hwc
by ezoixx118 @ 2018-09-28 18:12:01