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by BuXiangJuanLe @ 2018-10-18 10:08:02
话说加强了也要告诉下加强之后的范围吧...我的数组不断递增,最后才AC
[一个神奇的传送门](https://www.luogu.org/recordnew/lists?uid=100055&pid=1638&status=&sort=undefined)
实践出真理
by tsuppari @ 2018-10-30 19:56:59