# what gcd

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In the previous article, we introduced the basic concept of multithreading and the implementation of multithreaded programming two ways, this article, we introduce the last multithreaded programming tools, but also the most important one: GCD.1. GCD

### Multi-Threading for iOS development-all aspects of GCD

Preface: This article GCD's blog is I read a lot of great God at home and abroad on the gcd of the article, and the combination of their superficial understanding of GCD, and then take its essence, to its trough meal, comprehensive notes, and is as

### Euclidean algorithm GCD and its development ultimate explanation

Extended Euclidean algorithm-solving indefinite equation, linear congruence equation.If the two frogs meet after the S-step, the following equations will be fulfilled:(x+m*s)-(y+n*s) =k*l (k=0,1,2 ...)Slightly changed to form:(n-m) *s+k*l=x-yMake

### UVa 1642-magical GCD (number theory)

Link:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem= 4517Test instructionsEnter a sequence of positive integers for an n (n≤100000) element, and a continuous sub-sequence so that the greatest common

### Euclidean Algorithm gcd and its ultimate explanation

Euclidean Algorithm gcd and its ultimate explanation This problem has plagued me for a long time. I finally found an explanation, and I made some changes myself. I will certainly be able to deepen my understanding after my patience.  Extended

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### HDU 5381 The sum of GCD 2015 multi-school joint training game # MO team algorithm

The sum of GCDTime limit:2000/1000 MS (java/others) Memory limit:65536/65536 K (java/others)Total submission (s): Accepted submission (s): 4Problem Descriptionyou has an arrayThe length ofIsLetInputthere is multiple test cases. The first line of

### iOS Development GCD Introduction: Basic Concepts and dispatch Queue

iOS three multithreading technology 1.NSThread each Nsthread object corresponds to one thread, the magnitude is lighter (real multi-threaded) 2. The following two points are Apple's "concurrency" technology specifically developed to allow

GCD first, Brief introduction 1. What is GCD? The full name is Grand Central Dispatch, which translates as "the backbone scheduler" Pure C language, provides a lot of powerful functions Advantages of 2.GCD GCD is Apple's

### [52 Effective ways to write high-quality iOS code] (10) Grand Central Dispatch (GCD)

[52 Effective ways to write high-quality iOS code] (10) Grand Central Dispatch (GCD)Reference book: "Effective Objective-c 2.0", "English" Matt GallowaySneak Peek41. Multi-use dispatch queue, less use of synchronous lock42. Multi-use GCD, less use

Multithreading and network development for iOS: multithreading GCD and ios multithreading development gcd Master haomeng is devoted to his contribution and respects the author's Labor achievements. Do not repost them. If the article is helpful to

### Multithreading introduction and the use of GCD

Multithreading Introduction:For any iOS app, when the program is running, a main thread (Mainthread) is created by default, and the main thread is designed to handle the operations of Uikit objects, such as display and update of interfaces, actions

1, GCD Introduction: ?了解: GCD is all called "Grand Central Dispatch", pure C language, GCD provides a lot of powerful functions, GCD all the functions are contained in the Libdispatch library. 1-1, the advantage of using GCD: ?

### HDU 5869 Different GCD subarray Query (GCD type preprocessing + Tree array maintenance)

Title Link: http://acm.hdu.edu.cn/showproblem.php?pid=5869Ask you about the GCD kind of continuous sequence between l~r.First fixed right end, pretreatment gcd different as far as possible on the right position (at this time gcd species not more

### GCD preliminary learning and GCD Learning

GCD preliminary learning and GCD Learning GCD should be awesome. It may be difficult to operate at half past one. There are two articles on GCD in cocoa-china. GCD is an in-depth understanding (1) GCD (2) CSDN Rong Fangzhi blog: Click to open the

### iOS Development Multithreading Chapter-GCD Introduction

iOS Development Multithreading Chapter-GCD IntroductionFirst, Brief introduction1. What is GCD?The full name is Grand Central Dispatch, which translates as "the backbone scheduler"Pure C language, provides a lot of powerful functionsAdvantages of

### iOS Development Multithreading Chapter-GCD Introduction

iOS Development Multithreading Chapter-GCD IntroductionFirst, Brief introduction1. What is GCD?The full name is Grand Central Dispatch, which translates as "the backbone scheduler"Pure C language, provides a lot of powerful functionsAdvantages of

### iOS Development Multithreading Chapter 05-GCD Introduction

iOS Development Multithreading Chapter-GCD IntroductionFirst, Brief introduction1. What is GCD?The full name is Grand Central Dispatch, which translates as "the backbone scheduler"Pure C language, provides a lot of powerful functionsAdvantages of

iOS Development Multithreading Chapter-GCD IntroductionFirst, Brief introduction1. What is GCD?The full name is Grand Central Dispatch, which translates as "the backbone scheduler"Pure C language, provides a lot of powerful functionsAdvantages of

### Summary of GCD and ex_gcd

Gcd () --- indicates the maximum common number. The common method is Euclidean algorithm. Ex_gcd () --- Extended Euclidean Algorithm Definition 1: A and B are two integers not all 0, that is, the maximum common divisor of A and B is the maximum

iOS Development Multithreading Chapter-GCD IntroductionFirst, Brief introduction1. What is GCD?Full name is Grand Central DispatchPure C language, provides a lot of powerful functionsAdvantages of 2.GCDGCD is Apple's solution for multi-core parallel

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