摘要： Let SSS be a sequence of integers s1s_{1}s​1​​, s2s_{2}s​2​​, ........., sns_{n}s​n​​ Each integer is is associated with a weight by the following rul 阅读全文

摘要： You are given a list of train stations, say from the station 111 to the station 100100100. The passengers can order several tickets from one station t 阅读全文

摘要： 描述 You are given a list of integers a0, a1, …, a2^k-1. You need to support two types of queries: 1. Output Minx,y∈[l,r] {ax∙ay}. 2. Let ax=y. 输入 The f 阅读全文

摘要： 描述 Ming is going to travel for n days and the date of these days can be represented by n integers: 0, 1, 2, …, n-1. He plans to spend m consecutive da 阅读全文