注:此题应为用户@[TMXi](/space/show?uid=3925) 的个人私题,该用户将此题难度进行了加强,看样子是退役了,于是此题就出现在了洛谷题库中.
by karma @ 2017-12-31 22:14:56
故建议将此题取消,将该题题下的题解移至P1900 .谢谢.@[yjjr](/space/show?uid=5088)
by karma @ 2017-12-31 22:16:01
看起来的确是退役了
by middle_set @ 2017-12-31 22:45:36
@[karma](/space/show?uid=36075) 已加入todolist，感谢反馈
by yjjr @ 2018-01-01 08:16:02
题目公式的第二项$y_2$应该改为$x_2$ @[yjjr](/space/show?uid=5088) @[chen_zhe](/space/show?uid=8457)
by Youngsc @ 2018-05-03 16:36:18
@[Youngsc](/space/show?uid=36282) fixed
by yjjr @ 2018-05-03 19:54:31