Xor Sum Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 132768/132768 K (Java/Others)Total Submission(s): 1786    Accepted Submission(s): 758 Problem Description 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 Zeu…

题中没给范围 所以控制不好数组范围..不是超内存就是runtime.. 好吧 到了晚上终于调出来数组模拟的了 题意: 求含有某字符段的个数 解析: 把每个字符串遍历一遍 以每个元素为起点建树就好了.. 注意add型..因为每个字符串的元素只记一次  所以用id标记一下是否属于同一个源字符串就好了 嗯....还有...用c++交... 指针: #include <iostream> #include <cstdio> #include <sstream> #include…

A * B Problem Plus HDU - 1402 (FFT) Calculate A * B.  InputEach line will contain two integers A and B. Process to end of file. Note: the length of each integer will not exceed 50000. OutputFor each case, output A * B in one line. Sample Input 1 2 10…

D - 淡黄的长裙 HDU - 4221(贪心) James is almost mad! Currently, he was assigned a lot of works to do, so many that you can't imagine. Each task costs Ai time as least, and the worst news is, he must do this work no later than time Bi! OMG, how could it be c…

[python]Leetcode每日一题-前缀树(Trie) [题目描述] Trie(发音类似 "try")或者说 前缀树 是一种树形数据结构,用于高效地存储和检索字符串数据集中的键.这一数据结构有相当多的应用情景,例如自动补完和拼写检查. 请你实现 Trie 类: Trie() 初始化前缀树对象. void insert(String word) 向前缀树中插入字符串 word . boolean search(String word) 如果字符串 word 在前缀树中,返回 tru…

pid=1671">Phone List Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 12879    Accepted Submission(s): 4391 Problem Description Given a list of phone numbers, determine if it is consistent in…

统计难题Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131070/65535 K (Java/Others)Total Submission(s): 50524    Accepted Submission(s): 17827 Problem DescriptionIgnatius最近遇到一个难题,老师交给他很多单词(只有小写字母组成,不会有重复的单词出现),现在老师要他统计出以某个字符串为前缀的单词数量(单词本身也是自己的前缀…

题意: 有s个不同的单词,给出一个长字符串把这个字符串分解成若干个单词的连接(可重复使用),有多少种分解方法 分析: dp[i]表示i开始的字符串能分解的方法数 dp[i]=sum(dp[i+len(x)]);单词x是i开始的字符串的前缀. #include <map> #include <set> #include <list> #include <cmath> #include <queue> #include <stack> #…

题目链接:http://acm.hdu.edu.cn/showproblem.php? pid=5055 Bob and math problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 695    Accepted Submission(s): 263 Problem Description Recently, Bob ha…

Zball in Tina Town Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 1401    Accepted Submission(s): 727 Problem Description Tina Town is a friendly place. People there care about each other. T…