2018年8月13日
HDU 2852 KiKi's K-Number (主席树)
摘要： For the k-th number, we all should be very familiar with it. Of course,to kiki it is also simple. Now Kiki meets a very similar problem, kiki wants to 阅读全文
posted @ 2018-08-13 16:47 StarHai 阅读(182) 评论(0) 推荐(0) 编辑