TLE了第2，9个点但我有不知道怎么优化了
by PP00544 @ 2022-07-24 17:51:22
~~用快读快输，~~
或者用```scanf printf```,```cin cout```太慢了
by Anomie @ 2022-07-24 18:10:38
谢谢
by PP00544 @ 2022-10-09 17:20:44