这不TLE吗
by taoran @ 2018-09-08 22:25:18
@[27__tmi](/space/show?uid=114830) 你可以O(n)扫过去，统计一波
by taoran @ 2018-09-08 22:25:53
@[27__tmi](/space/show?uid=114830) 或者想用前缀和也行吧
by taoran @ 2018-09-08 22:27:33
@[27__tmi](/space/show?uid=114830) 你不a了吗qwq
by taoran @ 2018-09-08 22:32:15
WA
by K0stlin @ 2018-09-08 22:33:45
不知道为什么
by K0stlin @ 2018-09-08 22:33:57
emmmm你看一下输入格式
by taoran @ 2018-09-08 22:37:21
@[27__tmi](/space/show?uid=114830)
by taoran @ 2018-09-08 22:37:28
~~没问题啊~~
by K0stlin @ 2018-09-08 22:37:51
额。。。
by K0stlin @ 2018-09-08 22:38:17