hash tables, sometimes called hash lists. Personally, the hash table is an intermediate structure between a linked list and a two-fork tree. It is very convenient to use the linked list, but the data lookup is very troublesome; the data in the binary tree is strictly ordered, but this is the result of the cost of one more pointer. Hash table not only satisfies
Data Structure and algorithm principles behind MySQL indexes (I)
This article takes MySQL database as the research object and discusses some topics related to database indexes. In particular, MySQL supports many storage engines, and various storage engines also support different indexes. Therefore, MySQL database supports multiple index types, such as BTree inde
If you want to reprint, please keep this article link.First of all, the "Big Talk data Structure" on the KMP algorithm of the explanation part affixed, this article does not provide download links, will not be the book as a data to stay Baidu Cloud, the need for ebooks, plea
MySql infinite classification data structure -- pre-sorting traversal tree algorithm bitsCN.com
Unlimited classification is a very common application in our development, such as Forum Sections, CMS categories, and many applications.The most common and simple method is ID, parentID, and name in MySql. The advantage is that the
data structure and algorithm Foundation
1.1 Object of data structure research
Steps for the computer to solve the problem:
1.3 Basic concepts and terminology
1. Data: A collection of symbols that can be entered into a computer a
≠φ, there is a unique element D1 x1,
After understanding the basic operations that can be performed on a two-fork tree, we need to review the concept of recursion (skip this section and look directly at the code if you don't need to). Min's book P56 The relationship between recursion and the stack. But there is no mention of the basic concepts of recursion and the conversion of recursive and non-recursive algorithms.
The colloquial recursion is that
-*-# author:liu Jiang # Python 3.5 class Bstnode: "" Defines a binary tree node class.
Based on the discussion algorithm, some problems such as judging data types are neglected.
"" "Def __init__ (self, data, Left=none, Right=none):" "Initialize:p Aram Data: node-stored:p Aram left: node Zuozi :p Aram Right: "" "s
Data Structure and algorithm principle behind MySQL indexes (I), mysql Indexes
This document usesMySQLThe database is the object of study. We will discuss some topics related to database indexes. In particular,MySQLSupports many storage engines, and different storage engines support different indexes. ThereforeMySQLThe Database supports multiple index types, suc
This article is a common data structure and algorithm collation summary of the next, the previous article is mainly on the common information structures to summarize, this article is mainly to summarize some common algorithm related content, the article if there are errors, welcome to point out.
一、概述二、查找算法三、排序算法四、
Still continues the first reading note, this is based on the "ACM/ICPC Algorithm training Tutorial" on the line tree of the summary and modification (this book in the segment tree here error very much), but overall this book about the specific algorithm of the explanation and case are good.
Segment Tree Introduct
Hill sort , also called descending incremental sorting algorithm , is a more efficient and improved version of insertion sequencing. Hill Sort is a non-stable sorting algorithm.The hill sort is based on the following two-point nature of the insertion sort, which proposes an improved method:
The insertion sort is efficient in the case of almost sequenced data operations, i.e. the efficiency of linea
Before looking at the data structure and algorithm JavaScript description of the book, wrote a few blog posts, not too deep, hanging on the new blog.Data structures and algorithms JavaScript description-Stacks and queuesData structure and
Data structure and algorithmsData structure and algorithm, is now almost medium and above the company interviews are on the inspection, as a programmer, some basic data structure and algorithms still need to be, most of the inform
(chain queue)/* Common operations for Queues: 1. Initialize queue 2. element into queue 3. Element out of queue 4. Traversal of queue */#include Run the DemoAlgorithm SummaryThe operation of the queue and the operation of the stack are similar in principle, it is worth noting that the queue to traverse the words and the stack traversal a little bit different. Where you need to be aware is already described in the code block.Basic algorithm demo (circ
Learning causes
Once in a stroll v2ex, encountered such a post.Mathematics completely back to the teacher, want to learn some basic mathematics, probably high school degree, what book recommended?Post the landlord University does not have a high number of courses, go out to work has been engaged in the front-end work. Feel the lack of knowledge of mathematics, so I want to make up a math supplement.Look at the post, feeling and I very much like, beca
Data structure: including logical structure and physical structure (logical structure in the computer storage form).
Four logical structures: 1. Set structure 2. Linear structure (one-
Based on the traditional data structure algorithms, this book puts forward many new ideas, concepts, and design methods, and explains many new data structures and algorithms, this section focuses on how to enable data structures and algorithms to support multiple tasks, intr
string Element or node (node). When a data element consists of several data items, the sub-string corresponding to each data item in the bit string is called the data field. Thus, an element or node can be thought of as a mapping of data elements in a computer.6, the relati
comparisons is independent of the initial state of the keyword, and the total number of comparisons。 Number of exchanges, the best case is that it has been ordered, exchanged 0 times; Worst case scenario is, reverse, swapTimes. The number of exchanges is less than the bubble sort, because the exchange requires more CPU time than the CPU time required to compare,When the value is small, the selection sort is faster than the bubble sort.In-situ operations are almost the only advantage of selectin
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