注：`kP[i]` 表示 $(10^{-10}-2^i)\times 2^{50}$
by Phartial @ 2022-12-28 10:33:03
实际上把那句话删了都能过（
by Zpair @ 2023-04-03 15:01:31
@[bykem](/user/376161) https://loj.ac/d/1588
by xzy_caiji @ 2023-08-26 15:10:58
@[dfdf_xuziye](/user/939580) 6
by Phartial @ 2023-08-26 18:00:09