practice of programming

Title: Given two 32-bit integers a and B, returns the larger of A and B. Requirements: no comparative judgment.Do not write the principle, directly on the derivation chart:Code:#find out the larger number of two numbers without any comparative judgment.ImportRandomdefFlip (x):returnX^1#method to be testeddefbincompare (x, y): Z= X-y sigx= Flip ((x>>31) 1) Sigy= Flip ((y>>31) 1) Sigz= Flip (((z>>31) 1)) Sigxysam= Flip (sigx^Sigy) Sigxydiff= sigx^Sigy func= Sigxysam*sigz + sigxydiff*SIGXreturnFunc

To kneel and beg for a simple way ......... .....Rules.1. This Council once 10 points plus 2 pitches in the back2 This council complements 10 points plus 1 pitches in the back3 this council 2 times less than 10 points that's all.10th round in any case must first cast 2 times 2 times more than 10 points to increase the investment 1 timesOut of 300Package com.lovo;/** * Bowling Credit Program * @author Abe */import Java.util.scanner;public class Bowling {public static void main (STR Ing[] args) {S

C language for some simple operation exercises.Swap two numbers:# include Output Pyramids of any character at any level:# IncludeOperation Result:Operation:# include Three numbers sorted by:# include  Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. Getting Started with C programming-program practice (bottom)

(SOCKFD, (const struct sockaddr *) serveraddr, sizeof (serveraddr)) = =-1) err_exit ("Connect error"); Char buf[512]; while (Fgets (buf, sizeof (BUF), stdin)! = NULL) {if (write (SOCKFD, buf, strlen (buf)) = = =-1) err_exit ( "Write socket error"); memset (buf, 0, sizeof (BUF)); int readbytes = Read (SOCKFD, buf, sizeof (BUF)); if (readbytes = = 0) {cerr Attached-makefile. Phony:clean all CC = g++ Cppflags =-wall-g-pthread-std=c++11bin = Server Clientsources =

://blog.csdn.net/myhaspl/Rvalue referenceConsoleApplication1.cpp: Defines the entry point of the console application.Code:http://blog.csdn.net/myhaspl#include "stdafx.h"#include Using Std::endl;Using Std::cout;Using Std::cin;Class mypoint{Publicint n_x = 0;int n_y = 0;Code:http://blog.csdn.net/myhasplMyPoint (int x, int y) {n_x = x;n_y = y;cout cout }MyPoint (const mypoint AMP;MYP) {n_x = myp.n_x;n_y = myp.n_y;cout cout }MyPoint (MyPoint myp) {n_x = myp.n_x;n_y = myp.n_y;cout cout }~mypoint () {

::operator *") is not allowedcalling a host function("cuComplex::cuComplex") from a __device__/__global__ function("cuComplex::operator +") is not allowed This is because there is a problem with the Code provided in the original work. The code in the structure in the original work is cuComplex(float a, float b) : r(a), i(b) {} Modify it as follows: __device__ cuComplex(float a, float b) : r(a), i(b) {} Question 2 Error lnk2019: an external symbol that cannot be parsed [email protected]. This

(LISTENFD, (const struct sockaddr *) addr, sizeof (addr)) = =-1) err_exit ("Bind error"); if (Listen (LISTENFD, somaxconn) = =-1) err_exit ("Listen error"); Char buf[512]; int readbytes; struct sockaddr_in clientaddr; Remember: Be sure to initialize socklen_t Addrlen = sizeof (CLIENTADDR) here; while (true) {int clientfd = accept (LISTENFD, (struct sockaddr *) clientaddr, addrlen); if (clientfd = =-1) err_exit ("Accept error"); Print client IP address and port numb

Php practice course dedecms Programming 1 an Open Source cms system MVC-based Agile and quick website creation Our environment uses appserv and php5.2.6 After installation, a brief understanding of the various directory structures Easy to understand background Integration page: what we actually want to do. The industry term is "set Pages" Tab page: you can use a website to capture the Genie. Set pag

Linux signal Programming Practice (2) signal sending function and reentrant function In the early UNIX era, the signal was unreliable. It cannot be said that the signal may be lost, but a signal may occur, but the process may never know this. Currently, Linux calls unreliable signals before the SIGRTMIN real-time signal. The unreliable signal here is mainly because the signal queue is not supported, that i

Linux inter-process communication (IPC) Programming Practice (2) FIFO naming Pipeline In the previous article, we explained how to use anonymous pipelines to transmit data between processes, and also saw a defect in this method, these processes are started by a common ancestor process, which makes it inconvenient for us to exchange data between unrelated processes. Here, we will introduce another communicat

The previous note mainly introduced the basic knowledge related to time_wait. This article describes how to solve the problem raised by the article title based on practice. 1. view the system network configuration and current TCP statusIt is necessary to understand the default network configuration of the system when locating and handling network problems in applications. Take the x86_64 Linux kernelversion 2.6.9 machine as an example. The default IPv

[Java concurrent programming practice] -- "J. U. C": Condition, j. u. ccondition Before reading Condition, let's take a look at the following example: Factory type, used to store and retrieve goods: Public class Depot {private int depotSize; // repository size private Lock lock; // exclusive lock public Depot () {depotSize = 0; Lock = new ReentrantLock ();} /*** warehouse receiving ** @ param value */public

, this thing is just a reserved property, later extended with Preliminary test resultsReferenceFor the weak reference this thing, actually directly using the weak event mode, Microsoft has encapsulated theWeak Event Patterns,weak event in C #ConclusionThis is just a simple implementation of eventbroker, purely learning practiced hand, I think, if the follow-up I have sufficient time, or the work environment allows, I can achieve better, such as can be encapsulated in the internal multi-cloc

= text. LENGTH/2; I >= 0; i--) { char temp = *pstart; *pstart++ = *pend; *pend--= temp; } return text; }} Array inversionThe easiest way to understand is often the most efficient and why is it so efficient?public static string Arrayreverse (string text) { char[] Chararray = text. ToCharArray (); Array.reverse (Chararray); return new string (Chararray);}XOR operationDoes it have a lot of force? In fact, for the understanding bi

not more than 500 (in million tonnes) represents the market's maximum demand. The next line gives an n positive number indicating the stock (in million tonnes) of each mooncake, and the last line gives a positive n indicating the total price of each mooncake (in billions of dollars). The numbers are separated by a space.Output format:For each set of test cases, output the maximum profit in a row, in units of billions and accurate to 2 digits after the decimal point.Input Sample:3 2018 15 1075 7

;publicclassmain{ publicstaticvoidmain (String[]args) { scannerin=newscanner (system.in); stringnum=in.next ();int Result=0;while (result!=6174) { intleft=0; intright=0; char[]temp=creat (num); char[]l=newchar[4]; arrays.sort (temp); for (inti=3;i>=0;i--) { left=left*10+temp[i]-' 0 '; right=right*10+temp[3-i]-' 0 '; l[i]=temp[3-i] ;} if (left==right) { system.out.println (Newstring (L) + "-" +new String (temp) + "=0000"); return;} result=left-right; system.out.println (Newstring (L) + "-" +newst

of the code: so that the single process can handle the multi-client connection, for the single-core CPU, Single process using select processing connection and listening sockets its efficiency is not necessarily worse than multi-process/multithreading performance; **/struct sockaddr_in clientaddr; Socklen_t Addrlen; int maxfd = LISTENFD; Fd_set RSet; Fd_set Allset; Fd_zero (rset); Fd_zero (allset); Fd_set (LISTENFD, allset); Used to save the connected client socket int

Git_success.txt 'my own Tip : # The command on the official website of the above command is Add Tools/git_test/git_success. txtfile name git_success . txt in git should be capitalized, in the downloaded repository git_success . txt the file name may not be the same as the official commandFirst execution commit-' Added name to Git_success.txt 'The following error may be reported, follow the prompts to configureThe commit success may appear as shown below5. Push your branch to GitHub. This oper

This is a creation in Article, where the information may have evolved or changed. In the previous article Go Socket programming Practice: TCP Server and client implementation, we implemented an echo server, and also implemented a client to access the server.This article explains how to implement a UDP server and client.The protocol we're using this time is RFC 868,This protocol provides a site-independent,

::getaddr () {if (IsValid ()) {return Inet_ntoa (M_ADDRESS.SIN_ADDR); } return std::string ();} int SOCKET::GETPORT () const{if (IsValid ()) {return ntohs (m_address.sin_port); } return-1;} static ssize_t readn (int fd, void *buf, size_t count) {size_t nleft = count; ssize_t nread = 0; Char *ptr = Static_castSocketException.h#ifndef socketexception_h_included#define socketexception_h_included//Exception handling Class (the next section will use ...) Class Socketexception{public: sock