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Compile a function. When n is an even number, call the function to calculate 1/2 + 1/4 +... + 1/n. When n is an odd number, call the function 1/1 + 1/3 +... +

#include Be careful to define its type, divide it into two parts, and define it as "I" to see if the denominator is an odd or even number, and the sum is summed. C language: Calculate 1/1-1/2+1/3-1/4+

Transferred from: http://www.360doc.com/content/13/0523/16/7044580_287544243.shtml on the shell:0 indicates standard input1 indicates standard output2 indicates standard error output> default to standard output redirect, same as 1>2>1 means redirecting the standard error output to the standard output.>file means to redirect both the standard output a

Int a [5] = {1, 2, 3, 4, 5}; printf ("% d \ n", * (int *) ( a + 1)-2 );, printf % d What is the result of a certain convincing pen question in a certain year? The answer is 4. Why? My understanding (do not know if it is correct ): A is an array pointer of the int type [5], so a plus

Label:Simply record the process of upgrading firmware using the command line.Pre-upgrade version-VERSIONSP firmware 3.2.1.8.aSP firmware build number:88456sp firmware date:thu Apr 11:54:49 PDT 2014SP filesyst EM version:0.2.7Configuring a TFTP server to upgrade firmware using the command line-Load-source Tftp://10.0.143.30/sun_system_firmware-8_6_0_b-sparc_t4-2.p

2-1-single-chain table ordered Storage Structure-linear table-Chapter 2nd-Data Structure textbook source code-yan Weimin Wu Weimin edition, 2-1-Data Structure Textbook source code Chapter 2 linear table-sequence storage structure of a single-chain table -- Data Structure-yan

Programming for computing1 ^ 1 + 2 ^ 2 + 3 ^ 3 + ...... + N ^ nWhere N is an arbitrary integer. (Note: consider the case where the result may be out of the long range) Note: This method usesInteger array elementsStores each digit of a large number. ====================================== # Include Using namespace STD; Const int n = 10000; // defines the maximu

/***** JSON = [{ID: 1}, {ID: 2}] convert "[{ID: 1}, {ID: 2}] "*****/Jsontostring = function (OBJ ){If (OBJ = undefined ){Return "";}VaR r = [];If (typeof OBJ = "string") Return "\" "+ obj. replace (/([\ "\])/g," \ $1 "). replace (/(\ n)/g, "\ n "). replace (/(\ r)/g, "\ r ")

Python-selenium 2 Upgrade to the latest versionSelenium 2.48 was used before. firefox36The actual user's browser may have an automatic Update feature, so the version is basically up-to-date. So this time specifically to do a browser upgrade and selenium upgrade.Since Webdriver 3.0, selenium no longer provides default browser support. In other words, Firefox is no

Package Cn.itcast.heima2;import Java.util.concurrent.atomic.atomicinteger;import Java.util.concurrent.locks.condition;import Java.util.concurrent.locks.lock;import Java.util.concurrent.locks.reentrantlock;public class Threeconditioncommunication {public static void main (string[] args) {final business business = new Business (), New Thread (new Runnable () {@Override public void run () {for (int i=1;i Three threads communicate with each other thread

Write a 1=1 for the following conditions. This SQL should be spelled out in the program, the first thing in the program is not sure whether the following conditions are sure to have, in order to program simple first plus where 1=1, the back can be directly splicing. If you do not do this, you need to determine whether

Starting 3 threads, thread 1 printing 1 to 5, thread 2 printing 5 to 10, thread 3 printing 11 to 15, then thread 1 printing 16 to 20, and so on ... Print until 30 public class Mainthread {private static int num;//current record number private static final int threadnum =3;//open Task thread count private static fi

= = False) {condition_con.await ();} System.out.println (Thread.CurrentThread (). GetName () + "--consumer--" + this.name); flag = False;condition_pro.signal ();} finally {Lock.unlock ();}}} Class Producer implements Runnable {private Resource resource;private int num = 1; Producer (Resource Resource) {this.resource = Resource;} public void Run () {while (true) {if (num = = 1) {try {resource.set ("Lili", "

Mac OS).Python-v(That's a capital ' V '.) If Python is installed, it prints its version number, like this:Python 2.7.1You can download and install the Python2.7 for your platform from the Python website.http://www.python.org/Make sure you get the Python2.7 version (such as Python 2.7.2) from the download area of the website. Until this book is written, Python's latest major version number is 3.2, and the latest 2.x compatible release board is 2.7.※ap

python2.7 upgrade to python3.6.4 article link: https://zhuanlan.zhihu.com/p/33660059I'm on the server. After upgrading the Linux default installed python2.7 to Python 3.6.4: Yum is starting to get an error.Workaround:1Vim/usr/libexec/urlgrabber-ext-downWill/usr/bin/pythonSwitch/usr/bin/python2.72Vim/usr/bin/yum-config-manager# !/usr/bin/python#!/usr/bin/python2.7 "Linux" Python 2.x

Internet Explorer 11 support for Adobe FlashOn Windows 8.1, Adobe Flash is included as a platform feature that can run on Internet Explorer and desktop Internet Explorer. Users can enable or disable this feature by using the Manage Add-ons dialog box.Administrators can also use Group Policy settings to turn off Adobe Flash in Internet Explorer, prevent applications from instantiating Flash objects using Internet Explorer technology to turn this feature on or off.GPO Setting Path:User Configurati

Program//Find out e=1+1/1!+1/2!+1/3!+......+1/n!+ ... The approximate value, the request error is less than 0.0001import java.applet.*;import java.awt.*;import java.awt.event.*;p ublic

Migrate projects developed based on Dagger-1 to Dagger-2, dagger-1dagger-2 Original article: Dagger 1 to 2 migration process Author: Miroslaw Stanek Source: Development Technology Front Line www.devtf.cn Translator: chaossss Proofreader: tiiime Status:

Chapter 2 attracting your attention-UI programming (1), chapter 2 uiChapter 2 attracting your attention-UI Programming To learn how to develop Android applications, apart from getting familiar with related tools, you must first learn how to use various UI components. The applications we develop generally contain a set

(Hdu step 3.1.2) the bone board is paved with squares (simple recursion: calculate the number of solutions to overlay 2 * n grids with a 2*1 bone board), hdu3.1.2 Make an advertisement for yourself before writing a question ~.. Sorry, I hope you can support my CSDN video courses at the following address: Http://edu.csdn.net/course/detail/209 Question: