Chain lists, trees, diagrams, and recursive notes in data structures

1. Structures Structures are important in data structures, so first understand the structure-related knowledge points. struct LNode{ int data; char name[20]; }; //struct is the keyword that defines the structure, and LNode is the name of the structure //For example, create an object for the previous ...

Posted by Lonepig on Wed, 24 Jun 2020 18:23:56 -0700

JavaScript branch structure statement

Branch structure statement in JS JS code should be executed from top to bottom Branch structure statement: when a part is executed, select whether to execute a section of code according to the condition Conditional branch statement in JS - if There are four ways to write 1, if branch 1. if state ...

Posted by alecapone on Wed, 24 Jun 2020 00:55:41 -0700

Operational commands for elasticsearch indexes (core concepts, operational statements, and paging)

Article Directory 1. Description of put, post, delete, get methods 2. Data Models and Core Concepts 3. Basic operation of index 1. Create an index 2. View all current indexes 3. Modify (update) the document 4. Delete 5. Add data 6. Bulk operation data bulk 8. Bulk Read Documents 9. Search for data ...

Posted by Nukeum66 on Tue, 23 Jun 2020 09:06:32 -0700

Reading notes on the way of code neatness

Why keep your code clean? Tall: Software quality is not only dependent on architecture and project management, but also closely related to code quality, which is directly proportional to its cleanliness. Software quality < = > code quality < = > cleanliness. If software is compared to a g ...

Posted by falcons on Tue, 23 Jun 2020 00:13:29 -0700

Python notes - special exercises and answers

1. Output hello world on the screen print("hello world") 2. Try to define several variable types int type float type bool type string type a=1 b=1.0 c=2-1>2 d="f" print(type(a),type(b),type©,type(d)) 3. Try adding numeric types to see the result types a=1 b=1.0 print(type(a+b)) 4. Get the string e ...

Posted by evilcoder on Sun, 21 Jun 2020 22:04:38 -0700

Analysis and prediction of Telecom user churn

Analysis and prediction of Telecom user churn 1, Project background 2, Analysis purpose 3, Data source 4, Ask questions 5, Analysis process 6, Understanding data 1. Feature understanding 2. Import data 3. Data transformation 7, User churn analysis 1. Analysis of loss proportion 2. User attribute a ...

Posted by Envex on Sun, 21 Jun 2020 20:06:40 -0700

Data structure_ Summary of sorting algorithm

A summary table of all internal sorting algorithms asadsa.png Simple selection sorting First find the smallest (large) element in the unsorted sequence, store it at the beginning of the sorted sequence, then continue to find the smallest (large) element from the remaining unsorted elements, and ...

Posted by lzylzlz on Sun, 21 Jun 2020 20:01:14 -0700

Algorithm training phase I

Overview of the first phase of algorithm As the first phase of algorithm training, it is not difficult. But as a normal algorithm learner. We should not be bound by the present, so we will talk about as many ways as possible. As a review of previous algorithm learning. The methods used here will be described in detail in other documents. Missin ...

Posted by PeterPopper on Sat, 20 Jun 2020 21:24:09 -0700

BootStrap--Common Styles to learn more, join QQ Group: 1080355292, Enrollment Code (33)

Common Styles Typesetting Title Bootstrap, like regular HTML pages, defines headings with labels <h1> to <h6>, except that Bootstrap overrides its default style and works the same as it does in all browsers.In order for Non-heading elements to use the same style as headings, six class names, from.H1 to.H6, have also been deliberate ...

Posted by jeff2007XP on Sat, 20 Jun 2020 17:37:28 -0700

BootStrap -- common style

Common styles Typesetting title Bootstrap, like ordinary HTML pages, defines the title with tags from < H1 > to < H6 >. However, bootstrap overrides its default style and displays the same effect in all browsers. In order to make the non heading element and the heading use the same style, six class names of. h1~.h6 are specially def ...

Posted by BobRoberts on Sat, 20 Jun 2020 00:56:05 -0700