用光速乘
by RedreamMer @ 2021-08-02 19:49:31
变成 double 或者 __int128 做乘法取模后再转回来
by RedreamMer @ 2021-08-02 19:50:05
@[RedreamMer](/user/184549) AC了，谢谢
by wudiss8 @ 2021-08-02 19:54:19
用龟速乘的时候特判一下y<0
by mozijun @ 2022-01-26 11:19:58
应该是小于0，没法退出。
by TianShui @ 2022-03-14 11:42:56