不加这个就AC了
by Del_Your_Heart @ 2019-08-21 22:26:55
这东西很玄学，尽量别用比较好
竞赛用scanf和printf是不会出错的
by Nelson_Wang @ 2019-08-21 22:42:39
@[Nelson_Wang](/space/show?uid=143742) 谢谢
by Del_Your_Heart @ 2019-08-21 22:43:12