@[xiaolilsq](/user/230249)
by clamee @ 2020-06-18 10:58:33
2017真就全紫啊……这题写起来还是很烦的吧，也不至于紫啊 qwq
by Seauy @ 2020-07-06 22:44:22
确实没到黑题难度，虽然也很难
by Smile_Cindy @ 2020-08-05 21:30:58
@[Seauy](/user/54591)
哇，这题要是黑了那你让那些ZJOI怎么办，难度不是爆int了？？？
by GK0328 @ 2021-02-04 13:39:13