主要是思路全™被剧透了
by doby @ 2017-09-06 22:10:33
推理比较难，程序实现十分简单。。。。
by wangweiba @ 2017-09-06 22:16:08
@[doby](/space/show?uid=14378) +1
思路很难想，结果却只要一除，看完讨论全都变简单了
by codesonic @ 2017-09-06 23:19:24
a/b problem。。。
by yuzh2005 @ 2020-11-21 18:51:44
@[Darkins](/user/10832) ~~入门够了~~
by wilson_xiao @ 2023-07-15 15:42:39