http://acm.hunnu.edu.cn/online/?action=problem&type=show&id=11351&courseid=0 Problem description The famous Pythagorean theorem states that a right triangle, having side lengthsA and B and hypotenuse length C, satisfies the formula A 2 + B 2 =…

题目链接:hdu_4787_GRE Words Revenge 题意: 总共有n个操作,2种操作.每行读入一个字符串. 1.如果字符串以+开头,此为单词(即模式串,不考虑重复) 2.如果字符串以?开头,此为文章(即文本串,查询在此之前的单词在文本串中出现的次数) 题解: 强制在线的AC自动机 贴个大牛的详细题解http://blog.csdn.net/no__stop/article/details/16823479 这样的带合并操作的AC自动机用第二种建树的方式比较方便 #include<bi…

题目链接:hdu_3341_Lost's revenge 题意: 有n个模式串,一个标准串,现在让标准串重组,使得包含最多的模式串,可重叠,问重组后最多包含多少模式串 题解: 显然是AC自动机上的状态压缩DP,不过如果直接开404*500的数组显示开不下,所以这样要将状态hash一下,然后再DP,因为这个字母加起来为40,所以状态数不超过15000,所以可以接受. #include<bits/stdc++.h> #define F(i,a,b) for(int i=a;i<=b;i++)…

称号:hdoj 5087 Revenge of LIS II 题意:非常easy,给你一个序列,让你求第二长单调递增子序列. 分析:事实上非常easy.不知道比赛的时候为什么那么多了判掉了. 我们用O(n^2)的时间求单调递增子序列的时候,里面在加一层循环维护sum数组.表示前面有几个能够转移当当前,求前面sum的和保存到当前. 最后求最后一个sum[n-1]是否为1就ok.为1的话在最长的基础上减一,否则就是最长的. AC代码: #include <iostream> #include &l…

A:Pythagoras's Revenge 代码: #include<cstdio> #define ll long long using namespace std; int main() { ll a; while(scanf("%lld",&a)!=EOF) { ) break; ll aa=a*a; ; ;i<a;i++) { ll x=i; ) continue; ll y=aa/i; !=) continue; >a) ans++; } p…

A : Apple 题意:给出三个点,以及另一个点,求最后一个点是否在三个点的外接圆里面,如果在或者在边界上,输出“Rejected”,否则输出"Accepted" 思路:先求一个外接圆,得到圆心和半径,再判一下,注意精度问题,用JAVA import java.math.BigDecimal; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner i…

Internet,人们通常称为因特网,是当今世界上覆盖面最大和应用最广泛的网络.根据英语构词法,Internet是Inter + net,Inter-作为前缀在英语中表示“在一起,交互”,由此可知Internet的目的是让各个net交互.所以,Internet实质上是将世界上各个国家.各个网络运营商的多个网络相互连接构成的一个全球范围内的统一网,使各个网络之间能够相互到达.各个国家和运营商构建网络采用的底层技术和实现可能各不相同,但只要采用统一的上层协议(TCP/IP)就可以通过Internet…

通过爬虫 获取 官方文档库 如果想获取 相应的库 修改对应配置即可 代码如下 from urllib.parse import urljoin import requests from lxml import etree def get_data(page_num, key, file_name): """ 解析 page_num: 爬取页数 key: 爬取的关键字 file_name: 存入的文件 """ headers = { 'author…

Fermat vs. Pythagoras Time Limit: 2000MS   Memory Limit: 10000K Total Submissions: 1493   Accepted: 865 Description Computer generated and assisted proofs and verification occupy a small niche in the realm of Computer Science. The first proof of the…

目录 刷题记录:[LCTF]bestphp's revenge 一.知识点 1.SoapClient触发反序列化导致ssrf 2.serialize_hander处理session方式不同导致session注入 3.crlf漏洞 二.解题思路 三.解题步骤 刷题记录:[LCTF]bestphp's revenge 题目复现链接:https://buuoj.cn/challenges 参考链接:https://xz.aliyun.com/t/3341#toc-22 从LCTF WEB签到题看PHP…

Nim is a mathematical game of strategy in which two players take turns removing objects from distinct heaps. On each turn, a player must remove at least one object, and may remove any number of objects provided they all come from the same heap. ---Wi…

Lost's revenge Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 2262    Accepted Submission(s): 565 Problem Description Lost and AekdyCoin are friends. They always play "number game"(A bori…

2015年的第4本书,第3本英文书. 书名:Godfather ,中文书名<教父> 作者: Mario Puzo 单词数:17万 词汇量:1万 首万词不重复词数:2200(这个我不太相信) 本来想读Emma这本书的,但读了几页后就放弃此书了,自己的英语水平还承受不了作者的写作技巧.选来选去最后确定Godfather了,一是同事Dennis在大学时就读完过此书,二是同名的电影虽然出了三部,我还未完整地看过,对故事情节很感兴趣. 从2015年2月8日开始啃此书,3月4日完成,这部大块头的小说放在K…

题目来源:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=42  Fermat vs. Pythagoras  Background Computer generated and assisted proofs and verification occupy a small niche in the realm…

Network Saboteur Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 10147 Accepted: 4849 Description A university network is composed of N computers. System administrators gathered information on the traffic between nodes, and carefully divid…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5019 Problem Description In mathematics, the greatest common divisor (gcd), also known as the greatest common factor (gcf), highest common factor (hcf), or greatest common measure (gcm), of two or more i…

最近手感有点差,所以做点水题来锻炼一下信心. 下周的南京区域赛估计就是我的退役赛了,bless all. Revenge of Fibonacci Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 204800/204800 K (Java/Others)Total Submission(s): 1582    Accepted Submission(s): 356 Problem Description The well-know…

这篇我们完成Storyboards的最后一个例子,之前的例子中没有view之间的切换,这篇加上这个功能,使Storyboards的功能完整呈现.在Storyboards中负责view切换的东西叫做“segue”,只需对它进行简单的设置即可,一切都是傻瓜式的,无需繁琐的代码.好了,开始我们的例子吧. 1)Create a Simple Storyboard创建一个project,左边选择Application,右边选择Empty Application template(我们这里不使用Single…

在开始这章之前,先做个说明,从这篇开始,我所使用的xcode更新成了最新的版本,版本是4.6.1(4H512),如下: 大家可以打开自己电脑上的App Store,然后搜索xcode,第一个出现的就是Xcode,然后直接点击安装就行,很方便且智能,如果你的电脑上有旧版本的xcode,它还会提示你删除,反正整个过程我按住下来还是很容易的. 另外,从这篇开始,我使用的教程也做了相应的升级,现在使用的教程为这个大家去搜一下就可以找到,很方便. 好了,其他的没什么不同,下面开始我们这一篇的学习. 1)S…

Revenge of Nim II Problem DescriptionNim is a mathematical game of strategy in which two players take turns removing objects from distinct heaps. On each turn, a player must remove at least one object, and may remove any number of objects provided th…

Revenge of LIS II Problem DescriptionIn computer science, the longest increasing subsequence problem is to find a subsequence of a given sequence in which the subsequence's elements are in sorted order, lowest to highest, and in which the subsequence…

Revenge of Segment Tree Problem DescriptionIn computer science, a segment tree is a tree data structure for storing intervals, or segments. It allows querying which of the stored segments contain a given point. It is, in principle, a static structure…

UVA 816 - Abbott's Revenge option=com_onlinejudge&Itemid=8&page=show_problem&category=599&problem=757&mosmsg=Submission+received+with+ID+14332151" target="_blank" style="">题目链接 题意:一个迷宫,每一个点限制了从哪一方向来的.仅仅能往左右前…

The Revenge of the Princess’ Knight Problem Description There is an old country and the king fell in love with a devil. The devil always asks the king to do some crazy things. Although the king used to be wise and beloved by his people. Now he is jus…

Lost's revenge Time Limit: 5000MS Memory Limit: 65535KB 64bit IO Format: %I64d & %I64u Description Lost and AekdyCoin are friends. They always play "number game"(A boring game based on number theory) together. We all know that AekdyCoin is t…

Minimum's Revenge Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 283    Accepted Submission(s): 219 Problem Description There is a graph of n vertices which are indexed from 1 to n. For any pai…

Abbott's Revenge Time limit: 3.000 seconds Abbott’s Revenge  Abbott’s Revenge The 1999 World FinalsContest included a problem based on a “dicemaze.” At the time the problem was written, the judges were unable todiscover the original source of the dic…

算法:搜索: In mathematical terms, the sequence Fn of Fibonacci numbers is defined by the recurrence relation Fn = Fn-1 + Fn-2 with seed values F1 = 1; F2 = 1 (sequence A000045 in OEIS). ---Wikipedia Today, Fibonacci takes revenge on you. Now the first tw…

Description In mathematics, the greatest common divisor (gcd), also known as the greatest common factor (gcf), highest common factor (hcf), or greatest common measure (gcm), of two or more integers (when at least one of them is not zero), is the larg…

Problem Description Nim is a mathematical game of strategy in which two players take turns removing objects from distinct heaps. On each turn, a player must remove at least one object, and may remove any number of objects provided they all come from…