巧了我也是第二个`RE`
by Eqvpkbz @ 2018-07-16 20:18:15
+1
by Infinity_shl @ 2018-08-04 10:22:48
离散化之后的数据范围是n*2，初始化fa数组时要初始两倍
by DyingShu @ 2018-08-08 17:21:07
@[asdf1229](/space/show?uid=60011) 请问大佬，为什么？
by Hschen @ 2018-10-03 19:03:35
@[asdf1229](/space/show?uid=60011) 啊啊，懂了，谢谢
by Hschen @ 2018-10-03 19:05:09