彻底对数学绝望了 #include <cstdio> #include <cmath> int flag[1005],p[500],a; int d[100]; int init(int s) { int len=0,tmp,h=sqrt(s+0.5); for(int i=0;p[i]<=h;i++) if(s%p[i]==0) { if(a%p[i]==0)return -1; while(s%p[i]==0) { d[len++]=p[i]; s/=p[i]; } if…

Jacobi symbol Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 625    Accepted Submission(s): 258 Problem Description Consider a prime number p and an integer a !≡ 0 (mod p). Then a is called a q…

本题的注意点:n=p1*p2*p3......Pm 解法:直接利用公式a^((p-1)/2)=(a/p)mod p 即可求解. #include<stdio.h> #include<math.h> int flag[1005],p[500],a; int d[100]; int init(int s) { int len=0,tmp,h=sqrt(s+0.5); for(int i=0;p[i]<=h;i++) if(s%p[i]==0) { if(a%p[i]==0)ret…

HDU 1000 A + B Problem  I/O HDU 1001 Sum Problem  数学 HDU 1002 A + B Problem II  高精度加法 HDU 1003 Maxsum  贪心 HDU 1004 Let the Balloon Rise  字典树,map HDU 1005 Number Sequence  求数列循环节 HDU 1007 Quoit Design  最近点对 HDU 1008 Elevator  模拟 HDU 1010 Tempter of th…

转载来自: http://www.infocool.net/kb/PHP/201607/168683.html a 函数 说明 abs 绝对值 acos 反余弦 acosh 反双曲余弦 addcslashes 以 C 语言风格使用反斜线转义字符串中的字符 addslashes 使用反斜线引用字符串 apache_child_terminate 在本次请求结束后终止 apache 子进程 apache_getenv 获取 Apache subprocess_env 变量 apache_get_mo…

新年新气象,也希望新年可以挣大钱.不管今年年底会不会跟去年一样,满怀抱负却又壮志未酬.(不过没事,我已为各位卜上一卦,卦象显示各位都能挣钱...).已经上班两天了,公司大部分人还在休假,而我早已上班,估计今年我就是加班狗的命.(不说了,要坚强...) 以上扯淡已毕,下面言归正传. 这次的.NET加密解析系列中,前面已经讲解了散列加密.对称加密.数字签名三种加密方式,在这篇博文种,将会主要讲解非对称加密的原理,以及非对称加密在.NET种的应用. 一.非对称加密概述: 前面讲解过对称加密,对称加密中…

每次要用PHP的某个功能的时候,都要去查一下,于是决定将PHP所有类和函数都整理出来,加上注释 大致实现 将php.jar文件解压,取出目录stubs 将stubs中的所有php文件中的注释去掉,并做格式化处理,放在目录output 将所有文件中类和函数解析出来 从http://php.net/manual/zh/中将类和函数注释解析出来 格式化输出类和函数及所有注释 github地址:https://github.com/chentaihan/phpNote a 0 acos 反余弦 1 ac…

php小数加减精度问题,比特币计算精度问题 在php开发时,有小数加减的场景.结果发现不能够等于预想的值,bccomp比较二个高精确度数字.语法: int bccomp(string left operand, string right operand, int [scale]);此函数比较二个高精确度的数字.输入二个字符串,若二个字符串一样大则返回 0:若左边的数字字符串 (left operand) 比右边 (right operand) 的大则返回 +1:若左边的数字字符串比右边的小则返回…

先贴代码,有空再整理思路 PGP加密 using System; using System.IO; using Org.BouncyCastle.Bcpg; using Org.BouncyCastle.Bcpg.OpenPgp; using Org.BouncyCastle.Security; using Org.BouncyCastle.Utilities.IO; using System.Linq; namespace Server5.V2.Common { public static c…

网上C++版Biginteger参差不齐,一下子没有找到一个令人满意Biginteger,最近用c++改写了一下C#版 BigInteger,可以用于RSA大素数的生成,分享给大家.也请大家批评指正改的不好的地方. 其中有几个类型未在CPP中: typedef unsigned char Byte; #define null 0 typedef unsigned int Uint; typedef unsigned __int64 Uint64; //最大长度200 : 200 Uint=200…

[转]DotNet加密方式解析--非对称加密 新年新气象,也希望新年可以挣大钱.不管今年年底会不会跟去年一样,满怀抱负却又壮志未酬.(不过没事,我已为各位卜上一卦,卦象显示各位都能挣钱...).已经上班两天了,公司大部分人还在休假,而我早已上班,估计今年我就是加班狗的命.(不说了,要坚强...) 以上扯淡已毕,下面言归正传. 这次的.NET加密解析系列中,前面已经讲解了散列加密.对称加密.数字签名三种加密方式,在这篇博文种,将会主要讲解非对称加密的原理,以及非对称加密在.NET种的应用. 一.非…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2277 Change the ball Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 694    Accepted Submission(s): 272 Problem Description Garfield has three pile…

F - City Game Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1505 Appoint description: Description Bob is a strategy game programming specialist. In his new city building game the gaming enviro…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3123 The GNU Compiler Collection (usually shortened to GCC) is a compiler system produced by the GNU Project supporting various programming languages. But it doesn’t contains the math operator “!”.In mat…

Chip Factory Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5536 Description John is a manager of a CPU chip factory, the factory produces lots of chips everyday. To manage large amounts of products, every proc…

Mr. Frog's Game Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 277    Accepted Submission(s): 192 Problem Description One day, Mr. Frog is playing Link Game (Lian Lian Kan in Chinese).In this g…

链接:http://acm.hdu.edu.cn/showproblem.php?pid=5536 题面; Chip Factory Time Limit: 18000/9000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 6277    Accepted Submission(s): 2847 Problem Description John is a manager o…

HDU 3567 Eight II(八数码 II) /65536 K (Java/Others)   Problem Description - 题目描述 Eight-puzzle, which is also called "Nine grids", comes from an old game. In this game, you are given a 3 by 3 board and 8 tiles. The tiles are numbered from 1 to 8 and…

A + B forever! Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1171    Accepted Submission(s): 268 Problem Description As always, A + B is the necessary problem of this warming-up contest. But…

题目传送门:http://acm.hdu.edu.cn/showproblem.php?pid=5536 Chip Factory Time Limit: 18000/9000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 4915    Accepted Submission(s): 2205 Problem Description John is a manager of…

Difference of Languages Time Limit: 1000ms Memory Limit: 32768KB This problem will be judged on HDU. Original ID: 548764-bit integer IO format: %I64d      Java class name: Main A regular language can be represented as a deterministic finite automaton…

题目链接: PKU:http://poj.org/problem? id=3653 ZJU:problemId=1934" target="_blank">http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=1934 HDU:http://acm.hdu.edu.cn/showproblem.php? pid=2722 Description The Gorelians are a warlike rac…

Eight II Time Limit: 2000ms Memory Limit: 65536KB This problem will be judged on HDU. Original ID: 356764-bit integer IO format: %I64d      Java class name: Main   Eight-puzzle, which is also called "Nine grids", comes from an old game. In this…

题解:HDU 6598 Description Now, Bob is playing an interesting game in which he is a general of a harmonious army. There are \(n\) soldiers in this army. Each soldier should be in one of the two occupations, Mage or Warrior. There are \(m\) pairs of sold…

  该篇文章是我自己从我的新浪博客上摘抄过来的, 原文链接为: http://blog.sina.com.cn/s/blog_dcc636350102wat5.html     在iOS开发中, 难免会集成别人的三方类库, 当集成的三方类库过多时, 难免会出现某些库同时使用了同样的函数库,导致link的时候报错提示duplicate symbol.详情见图:     这样的报错让我们觉得很麻烦, 这样的文件重复错误, 不是由自己的程序中的代码造成的, 而是别人的三方类库, 也就是说,这种情况下,…

在编译 OpenSceneGraph 的一个简单示例时, #include <osgViewer/Viewer> #include <osgDB/ReadFile> void _tmain(int argc, _TCHAR* argv[]) { osgViewer::Viewer viewer; viewer.setSceneData(osgDB::readNodeFile("glider.osg")); viewer.realize(); viewer.run…

说明:在我们调试C语言的过程中,经常会遇到duplicate symbol错误(在Mac平台下利用Xcode集成开发环境).如下图: 一.简单分析一下C语言程序的开发步骤. 由上图我们可以看出C语言由编写源程序->编译->链接->运行几个步骤进行. 编写源程序: C语言的源文件的扩展名为.c,源文件以ASCII的形式存储,不能直接被计算机执行. 编译: 1.把C语言源程序翻译成计算机可以识别的二进制代码,由编译器完成. 2.编译的同时进行语法检查,如果发现语法错误,则编译失败.如果编译成…

Saving HDU Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 7194    Accepted Submission(s): 3345 Problem Description 话说上回讲到海东集团面临内外交困,公司的元老也只剩下XHD夫妇二人了.显然,作为多年拼搏的商人,XHD不会坐以待毙的.  一天,当他正在苦思冥想解困良策的…

一.Symbol类型: 1.ES6引入了一种新的原始数据类型Symbol,表示独一无二的值.它是JavaScript语言的第七种数据类型,前六种是:Undefined.Null. 布尔值(Boolean).字符串(String).数值(Number).对象(Object). let s = Symbol(); typeof s; //"symbol" 2.Symbol函数可以接受一个字符串作为参数,表示对Symbol实例的描述,主要是为了在控制台显示,或者转为字符串时,比较容易区分.…

http://acm.hdu.edu.cn/showproblem.php?pid=3037 Lucas定理模板. 现在才写,noip滚粗前兆QAQ #include<cstdio> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; int jc[100003]; int p; int ipow(int x, int b) { ll t = 1, w = x;…