what xor operation

Http://sunxiunan.com /? P = 1640 We willCodeMake a slight modification to make it easier to understand some macro definitions into functions: # Include "stdafx. H "# include /* fast strcpy -- Copyright (c) 2003 Thomas M. ogrisegg * // #

Bitwise operations are one of the basic operations in C/C ++. Even so, it is a strange operation for most programmers-most programmers seldom use bitwise operations. This article first briefly introduces the basic bitwise operators and their usage

The assignment operator is also used together with the arithmetic operator. It is mentioned in the appendix earlier. For example, to add x to 4 and then assign the value to x, you can write it as x + = 4. Copy codeThe Code is as follows: public

In the process of using a computer, it is inevitable to deal with various types of passwords. The following nine types of passwords may be the most popular for everyone: BIOS password, installation password, user password, power management password,

Xor operator Perform the logical "XOR" Operation on the two expressions. result = expression1 Xor expression2Parameters Result Any numeric variable. Expression1 Any expression. Expression2 Any expression.Description If one and only one expression

and Operations & Example:3&5Solution: 3 of the twos complement is 11, 5 is 101, 3&5 is 011&101, first look at the hundred (actually not the hundred, so it is easy to understand) a 1 1, according to (1&1=1,1&0=0,0&0=0,0 &1=0) that the hundred

Given An array of numbers nums , in which exactly-elements appear only once and all the other elements appear exactly Twice. Find the elements that appear only once.For example:Given nums = [1, 2, 1, 3, 2, 5] , return [3, 5] .Title: To an array, the

One Day together Leetcode This series of articles has all been uploaded to my github address: Zeecoder ' s GitHubYou are welcome to follow my Sina Weibo, my Sina Weibo blogWelcome reprint, Reprint please indicate the source (i)

Frontierswap函数 用于交换 a ,b 两个数。实现方法大同小异，其中不乏有好多版本，现在就其性能和可读性略作分析。不对指出还望指正。。Discussion: The function prototypes are:(1) void swap(int &a,int &b);传引用(2)void swap(int *a,int *b);传地址The following is a second function prototype analysis, the code is as

RAID (Redundant array of independent Disks, redundant array of independent disks ) provides higher speed and security for normal side disks. All servers will choose to create raid when they are installed. There are two ways to create a raid: Soft

I. Title DescriptionGiven an array containing n distinct numbers taken from 0, 1, 2, ..., n , find the one and that's missing from the array.For example,Given nums = [0, 1, 3] return 2 .Note:Your algorithm should run in linear runtime complexity.

1. Tacacs + Overview 1.1 What is TACACS +TACACS + (terminalaccess Controller access control system, Terminal Access Controller Control Protocol) is a feature-enhanced security protocol based on the TACACS protocol. The protocol is similar to the

If the traditional method, in addition to 2 to take the remainder of this way, not fast enough. The computer can perform bitwise operations directly.The number that we are going to convert is called numbers, and the only thing we need to do is to

Summary: In the use of encryption, we can add random numbers, so that the same plaintext, each time the encryption to obtain a different ciphertext, while the ciphertext can be added to the validity of the ciphertext, the effective length of time to

Problem DescriptionIn The New Year party, everybody'll get a "special present". Now it's your turn to get your special present, a lot of presents now putting on the desk, and only one of the them would be yo Urs. Each present have a card number on

Recently, in the book to see a data exchange function of the source code, found quite interesting, the specific code is as follows:1 void swap (intint* b)2{3 *a ^= *b ^= *a ^= *b; 4 }According to the calculation rules of the C-language XOR

Topic Links:TransformTime limit:4000/2000 MS (java/others)Memory limit:131072/131072 K (java/others)Total submission (s): 685 Accepted Submission (s): 244Problem Descriptiona List ofNIntegers is given. For an integerxYou can do the following

Program:This window shows that this is a Nag window that needs to be removedClick "OK"Take a look at Peid.This is a program written in assembly language.Reverse:Loading the program with ODThe caption and text of the Nag windowRight-click Find all

The Hamming distance between and integers is the number of positions at which, the corresponding bits is different.Given integers x y and, calculate the Hamming distance.Note:0≤ x , y Example:input:x = 1, y = 4output:2explanation:1 (0 0 0 1) 4 (0

Requirement: Give an array of int, containing the number 0, 1, 2, ..., n, to find the missing number;If the input is [0, 1, 2] returns 3Input array nums = [0, 1, 2, 4]; should return 3Input nums = [2, 0]; should return 1Input nums = [1, 0]; should