%%%Orz
by BriMon @ 2018-10-17 19:12:36
~~出题人表示std没用long double~~
by xenonex @ 2018-10-17 19:13:08
@[cn：苏卿念](/space/show?uid=57699) %%
by ztz11 @ 2018-10-17 19:22:27
%%%
by yangzehao @ 2018-10-17 19:35:24
计算几何废物的我= =
by 星小雨 @ 2018-10-17 19:37:38
orzorzorz
by _ztyqwq @ 2018-10-17 19:38:11
上界貌似取 $10+0.07a$ 就可
by SodiumCyanide @ 2021-01-26 21:12:16