Hallelujah520的博客

You should process m queries over a set D of strings. Each query is one of three kinds:Add a string s to the set D. It is guaranteed that the string s was not added before. Delete a string s from the

Zeus 和 Prometheus 做了一个游戏，Prometheus 给 Zeus 一个集合，集合中包含了N个正整数，随后 Prometheus 将向 Zeus 发起M次询问，每次询问中包含一个正整数 S ，之后 Zeus 需要在集合当中找出一个正整数 K ，使得 K 与 S 的异或结果最大。Prometheus 为了让 Zeus 看到人类的伟大，随即同意 Zeus 可以向人类求助。你能证明人类的

Give you an array A[1..n]A[1..n]，you need to calculate how many tuples (i,j,k) (i,j,k) satisfy that (i < j < k)(i < j< k) and ((A[i] xor A[j])<(A[j] xor A[k]))((A[i] xor A[j])<(A[j] xor A[k])) T

Chip Factory Time Limit: 18000/9000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 3409 Accepted Submission(s): 1494Problem Description John is a manager of

度熊手上有一本神奇的字典，你可以在它里面做如下三个操作： 1、insert : 往神奇字典中插入一个单词 2、delete: 在神奇字典中删除所有前缀等于给定字符串的单词 3、search: 查询是否在神奇字典中有一个字符串的前缀等于给定的字符串 Input 这里仅有一组测试数据。第一行输入一个正整数N(1≤N≤100000)N(1≤N≤100000)，代表度熊对于字典的操作次数，接下来NN行

Given a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let’s say the phone catalogue listed these numbers: 1. Emergency 911 2. Alice 97 6

When you go shopping, you can search in repository for avalible merchandises by the computers and internet. First you give the search system a name about something, then the system responds with the re