udacity data structures

1. Why Learning AlgorithmLarge companies in the interview, written tests require the algorithm and data structure of the basic need to master the very good, only master the basic algorithms and data structure, in order to make the code more efficient.Using algorithms and data structures in the right place2, what is the

bodyThe structure of a single-linked list contains two elements, one is the data element, and the other refers to the address of a node that is down. Data types in the following structures can be either basic data types or complex data types.struct singlelistnode{ int

the specific value, so that the number of nodes less, to be able to read all the main memory, external contact storage key and value, and order, with good spatial locality. So B-plus + trees are more suitable for data structures with file systems. Below is a B-tree for content storage.In addition, b/b+ tree is often used as the index of the database, it is recommended that you directly see the Zhang Yang M

Reprint Address: http://blog.csdn.net/AE86_FC/article/details/5842020detailed Anatomy of the Namenode startup processa few key data structures in NamenodeFsimageNamenode will store HDFs file and directory metadata in a binary file called Fsimage, and all HDFS operations between each save Fsimage and next save will be recorded in the Editlog file. When the editlog reaches a certain size (bytes, Defined by th

elementsGetelem (l,i,*e)--Returns the value of the I position element in the linear table L to ELocataelem (L,e)--Finds an element in the linear table L that is equal to the given value E, if the lookup succeeds, the return element in the table indicates success; otherwise, a return of 0 indicates a failure.Listinsert (*l,i,e)--Inserting a new element in the linear table L at the first position EInstance code:650) this.width=650; "title=" 11.jpg "src=" http://s3.51cto.com/wyfs02/M01/56/CB/wKioL

Data structures and algorithms (C # implementation) series ----- Preface Heavenkiller (original) Computer programmers should be clear that language is just a tool, and algorithms are the soul. There are many development languages, such as C ++, VB, Perl, Java, C #, and scripting languages such as JS and vbs, many people do not know which one to choose. In fact, no matter which language, since he exists, he

, S's right child is redIn this case we do a left spin on the father of N, so that s becomes the father of N and the parent of S's right son. We then swapped N's father and s for the color, and made s the right son black. The subtree is still the same color on its root, so attribute 3 is not violated. However, N now adds a black ancestor: either N's father turns black, or it is black and S is added to a black grandfather. Therefore, a black node is added through the path of N.4. References(1) "I

From here, we will be explaining the Java data structure, is it ready? Let ' s go~~the data structure model in Java can be divided into several parts:1. Linear structure2. Tree-shaped structure3. Graphic or mesh structureIn the next few, we will explain these data structures separately, mainly through the way of Java c

Objective:Stacks are similar to a list of data structures, but the stack is characterized by ' descendants first out '. Stacks are an efficient data structure, because data can only be added or deleted at the top of the stack, so this is fast and easy to implement.1. Introduction of the Stack:A stack is a special list

In general, the data structures on textbooks include arrays, single-linked lists, stacks, trees, and graphs. The data structure I'm referring to here is a question of how to represent an object, and sometimes a single variable declaration can be overwhelming, such as a int,string,double or even a one-dimensional array, a two-dimensional array that cannot fully ex

In this article, we discussed three parts of the content: What are linear structures and what are the characteristics of linear structures? The simplest linear structure sequential table is described in detail, and some analysis is done by source code. Finally, an example is given to give us a better understanding of the sequential table. Part I: What are linear

1. What is the use of learning data structures? 2. Is it necessary to learn the algorithm? Reply content:Personally think data structure is one of the most important basic skills of programming! Learn the sequential table and linked list, you know, in the query operation of more programs, you should use the sequential table, and modify the operation of more prog

table depth (degrees)The elements of a generalized table can be atomic or sub-tables, and the elements of a child table can be child tables, .... That is, the generalized table is a multi-level structure. The Generalized table D in table 5-2 shows a graphical representation of 5-12.Generalized tables can be shared by other generalized tables, or other generalized tables can be shared. Generalized tables share other generalized tables without having to list the values of the child tables, but by

third loop we have a normal insertion of the data for this group, and the hill sort is a sort of insertion with a certain step, so we can understand that!Issues to be aware of:One: About Hill Sort Step selection question:To tell the truth, I really do not understand the problem, it is not very convenient to make the corresponding explanation, but in my view of the algorithm fourth edition books and data

If the structures of multiple tables are different, it seems impossible to query the results of multiple tables together! For example, Table If the structures of multiple tables are different, it seems impossible to query the results of multiple tables together! For example, table: A_id Title Is_open Last_update 2 Test 1 1 130225252 Table B: B _id Name

Arrays are the most widely used data structures that are often embedded in programming languages and used as basic data types, so in some textbooks, arrays are not interpreted as a data structure alone (in fact, arrays are contiguous memory, even if they are not contiguous in physical memory, logically continuous). In

This article mainly introduces the common data structures of Python. For more information about the data structures of Python, see the following section, I believe it provides some reference value for readers. OverallCommon data structu