摘要: BaoBao has a sequence a​1​​,a​2​​,...,a​n​​. He would like to find a subset S of {1,2,...,n} such that ∀i,j∈S, a​i​​⊕a​j​​<min(a​i​​,a​j​​) and ∣S∣ is 阅读全文
posted @ 2018-09-16 18:37 柠檬加糖 阅读(161) 评论(0) 推荐(0) 编辑