If there is a corresponding OJ subject , Welcome to provide the corresponding links

### A simple test

None


### The code template

/*
* TIME complexity:O(logN) means very fast.
* PARAMS:
* a Integer a.
* b Integer b.
*/
int gcd(int a,int b){
return a%b==0?b:gcd(b,a%b);
}


## Templates --> More articles on Euclidean algorithm

1. Templates —— extended euclidean algorithm （ seek ax+by=gcd Solution ）

Bryce1010 Templates /**** * extended euclidean algorithm * return d=gcd(a,b), And corresponding equation ax+by=d Medium x,y */ long long extend_gcd(long long a,long ...

2. Answer key —— Luogu P2613 【 Templates 】 The remainder of rational number （ extended euclidean algorithm + Inverse element ）

Topic Title Description Give a rational number  c=\frac{a}{b}  ​ , seek   c mod19260817  Value . I / O format Input format : Two lines in all . first line , An integer $$a$$ . The second line , One whole ...

3. Luogu 5170 【 Templates 】 Euclid like algorithm

The principle is not difficult, but the writing is very complicated . I think it's very easy to understand blog .    Portal We set up f(a, b, c, n) = \sum_{i = 0}^{n}\left \lfloor \frac{ai + ...

4. Euclidean algorithm and extended Euclidean algorithm _C++

Thank you for the references :http://www.cnblogs.com/frog112111/archive/2012/08/19/2646012.html notes : The numbers discussed below are all integers One . Euclid algorithm ( The key point is the evidence ...

5. vijos1009： extended euclidean algorithm

1009: number theory extended euclidean algorithm In fact, I am not familiar with the extended Euclidean algorithm ... It should be because I didn't understand it before. Think again this time , Looking back at the derivation of a certain great God and the template of a certain great God, I should be able to understand First of all, according to the meaning of the title :L1= ...

6. 【 Algorithm 】 Euclidean algorithm dates frogs oj

Euclidean and extended Euclidean algorithms subject : poj 1061 poj 2142 Double six Extended Euclidean algorithm Let's start with Euclidean algorithm : Euclidean algorithm is used to divide $$gcd$$. seek $$a.b$$ Of $$gcd$$, Then we can make use of our sex ...

7. Extended Euclidean algorithm (exgcd)

One . Preface This blog is suitable for people who have learned Euclidean algorithm ~~~ Two . extended euclidean algorithm In order to better understand the extended Euclidean algorithm , First of all, you need to know a metaphysical theorem called bezu's theorem :  That is, if a.b Is an integer , So there must be integers x.y bring \$ ...

8. extended euclidean algorithm (extgcd)

I believe you have a good understanding of Euclidean algorithm , That is to say, division is not strange . The code is as follows : int gcd(int a, int b){ return !b ? gcd(b, a % b) : a; } And the extended Euclidean algorithm , seeing the name of a thing one thinks of its function ...

9. Euclid algorithm : From proving the equation gcd(m, n) = gcd(n, m mod n) For each pair of positive integers m, n Let's talk about it

When writing poetry or programs , We often have to deal with Euclidean algorithms . However, do you have to consider why Euclidean algorithm is effective and efficient , Some extreme ( ok , Please allow me to use this word with strong personal emotion ) Computer scientists in the United States believe that , Unless the correctness of the program is ...

## Random recommendation

1. asp.net &lt;asp:Content&gt; Control

<asp:Content ID="Content2" ContentPlaceHolderID="CPH_MainContent" runat=" ...

2. Atitit Understanding convolution in image processing attilax summary

Atitit Understanding convolution in image processing attilax summary Convolution can be divided into inversion . translation , Multiply , Sum up .         In image processing , The image is a big matrix , The convolution template is a small matrix . Follow the above process , That's to invert the small matrix first , however ...

The goal is Use ajax Get json After the data , adopt ko Bind to table , And then through jquery.gridgroup The plug-in implements line merging , The effect is as follows : step 1. Introducing plug-ins <script src="~/Scr ...

4. 【 original 】 use JAVA Upload large files and display progress information

5. Response.Redirect: Unable to send HTTP Redirection after header

URL:http://blog.163.com/asp_neter/blog/static/17510918820107258107558/ Error statement :“Response.Redirect(&qu ...

6. One day

1.c Formatted I / O for :  printf() and scanf() Function can better achieve the formatted input and output , Examples are as follows :  printf("%3d",3); // The result is __3 (_ Is a space )  pri ...

7. stack Set stack computers （ pick ）

There's one designed specifically for set operations “ Set stack ” Computer . The machine has an initially empty stack , And support the following operations :PUSH: An empty set “{}” Push DUP: Make a copy of the current top stack element and then put it on the stack UNION: Two sets out of the stack , And then put the union of the two into ...

8. python Realization FTP Program

python Realization FTP Program Program source code Upload function see file cd function Create directory Program source code Directory structure Server side The main program import optparse import socketserver import ...

9. MySql Inside the technology MySQL introduction (1)

Catalog MySql Inside the technology MySQL introduction (1) install About notes perform SQL sentence About command case Create database Look at the table information See more details View the columns that match the given pattern insert data utilize insert add rows ...

10. About python format() Usage details

str.format() This feature comes from python2.6 And come In fact, the effect and % Some similar But some places are more convenient Through location mapping : In [1]: '{0},{1}'.format('kzc',18) Out ...