ACM-ICPC 2018 沈阳赛区网络预赛 J. Ka Chang(树状数组+分块)
摘要：
Given a rooted tree ( the root is node 1 ) of N nodes. Initially, each node has zero point.Then, you need to handle Q operations. There're two types:1 阅读全文
posted @ 2018-09-15 09:42 大桃桃 阅读(259) 评论(0) 推荐(0)
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