good book for data structures and algorithms

1. Basic properties of stacks and queues Stack is advanced after out; (like a bullet clip, a last-shot first) Queues are FIFO; (like waiting in line to buy ice cream, in order to take turns) Stack and queue in the implementation of the structure can have an array and a list of two forms; (1) The array structure is easy to implement;(2) The structure of the linked list is more complicated, because it involves a lot of pointer operation;1.1 Basic operation of stack structure(1) Pop op

()) { CharCH =Thestack.pop (); Output= output +ch; } returnoutput; } } classReverseapp { Public Static voidMain (string[] args)throwsIOException {String input, output; while(true) {System.out.print ("Enter A string:"); System.out.flush (); Input=getString1 (); if(Input.equals ("")) { Break; } reverser Thereverser=Newreverser (input); Output=Thereverser.dorev (); System.out.println ("Reversed:" +output); } } Public StaticString getString

value.Similarly, when an element of the RightMark position is greater than or equal to the base value, RightMark moves to the left one position to continue scanning, and the scan stops when the element of the RightMark position is less than the base value.After stopping the scan, we compare the size of the Leftmark and RightMark, if the Rightmark　　After we have put the datum values in the correct position, we see that the elements on the left side of the base value are smaller than the datum va

"Select Sort"The selection sort is based on a bubbling sort (Bubble sort) that has been improved: each visit process (pass) needs to be exchanged at most.Each visit process, to find the maximum value, when the end of the visit, the maximum value is exchanged to the correct position;Then continue to repeat the process in the remaining sublist until the n-1 visit is completed (n is the length of the list);At this point, the remaining elements in the list are automatically aligned to the correct po

= [] showing the same gender; Let len = this.list.length; while (len--) {if (This.list[len].gender = = = Gender) {Ret.push (this.list[len].name); }} return ret;} Example let people = new person ();p eople.save (' Mazey ', ' Male ');p eople.save (' John ', ' Male ');p eople.save (' Zero ', ' Male '); People.save (' July ', ' Male ');p eople.save (' Bob ', ' Male ');p eople.save (' Ada ', ' female ');p eople.save (' Cherrie ', ' female ');p eople.save (' Luna ', ' female ');p eople.save

This article illustrates the fast sequencing of data structures and algorithms implemented by Python. Share to everyone for your reference. The specific analysis is as follows: I. Overview Quick Sort is a sort of divide-and-conquer algorithm. The algorithm first selects a partitioning element (partition element, sometimes called a pivot), and then rearranges th

result.So what do we do with the program language output?int sum =0,n = 100;for (int i=1;i{Sum =sum+i;}coutGaussian algorithmint i,sum=0,n=100;sum = (1+n) *N/2;cout Execute only onceWhat is an algorithm?A description of the solution steps for a specific problem, represented as a finite sequence of instructions in the computer, and each instruction represents one or more operationsFive basic featuresInput, output, poor, deterministic and feasibleInputAlgorithm Local area 0 or more inputsvoid Tes

algorithm is O (NLOGN).2: Worst of all, that's what I'm talking about. The maximum and minimum values are selected:Then look at the worst-case fast-track, when the sequence to be sorted is in a positive or reverse order, and each partition has only one sub-sequence that is less than the last one, noting that the other is empty. If the recursive tree is drawn, it is a diagonal tree. You need to perform a n‐1 recursive call at this time, and the first Division I need to go through the N‐i keyword

;//I fall back to the next last match firstj =0;//J fallback to the first of the substring } if(J = =searchstr.length) {returnIJ; } }}I is the subscript positioning of the main string, and J is the subscript location of the substring.When the main string string is equal, it enters the loop mode of the substring, and when the number of cycles J satisfies the substring length, the validation is exactly the same.When the main string string is not equal, it is necessary to move the

Chapter 6 of Robert lafore, Java data structures and algorithms /* 6.1 assume that you have bought a cheap handheld computer, but find that its built-in chip cannot be used for multiplication and can only be used for addition. To get rid of this dilemma, you need to write your own program, write a recursive method mult (), and its parameter number is X and the re

Data Structure : There is a relationship between the two;algorithm : A description of the steps of the problem solving, represented in the computer as some column instructions and operationsalgorithm Five features : input (input parameters), output (results obtained), certainty (step is meaningful without ambiguity), feasibility (each step is feasible) correctness (in addition to the previous features, it also has the need to reflect the problem and g

Recommend a Visual Web site "Visual Algo": Url= ' https://visualgo.net/en/sorting 'This website gives the principles and processes of various sorting algorithms, which are visualized through dynamic forms. The related pseudo-code are also given, as well as the specific steps to execute to code."Bubble Sort"You need to repeatedly visit the sequence of columns that need to be sorted. The size of the adjacent two items is compared during the visit, and i

("Lookup data does not exist"); the return NULL; the } + -System.out.println ("Find successful, data is:" + This. list[p]); the return This. list[p];Bayi } the the //Sequential Table Size - Public intSizeOf () { - return This. Listlen; the } the the Public voidPrint () { theSystem.out.print ("["); - for(inti = 0; I This. list.length;

;}/* Loop to delete the queue node */while (P.LINK!=P){for (i=0;i{R=p;P=p.link;}R.link=p.link;Console.WriteLine ("deleted element: {0}", P.data);Free (p);P=r.node.;}Console.WriteLine ("\ n the last element removed is: {0}", P.data);The specific algorithm:650) this.width=650; "Width=" 620 "height=" 420 "src=" http://files.jb51.net/file_images/article/201211/ 2012110120510432.png "/>The complexity of the time of this algorithm is O (n2)}Reference: http://www.jb51.net/article/31698.htmThis article

= {'x': 1,'Z': 3}b= {'y': 2,'Z': 4 } fromCollectionsImportCHAINMAPC=Chainmap (A, b)Print(c['x'])#Outputs 1 (from a)Print(c['y'])#Outputs 2 (from B)Print(c['Z'])#Outputs 3 (from a)Idea 2:dict_bak.update ({new_dict}), update the original dictionary (copy), the original duplicate key's value will be overwritten, can only query to the new dictionary data, the original dictionary changes can not be reflected synchronouslyTest = Dict (a) #用dict生成原字典的副本

if(Head.next.data.equals (key)) { theSystem.out.print ("Query node:" + key + ","); theSystem.out.print ("Query node predecessor node is:" + Head.data + ","); the if(Head.next.next! =NULL) {98SYSTEM.OUT.PRINTLN ("Query node post node is:" +head.next.next.data); About}Else { -SYSTEM.OUT.PRINTLN ("Query node is tail node!"));101 }102 return;103 }104Head =Head.next; the }106System.out.println ("No this node!"));107

This article mainly introduces the binary tree of JavaScript Data Structures and Algorithms. This article describes the concept of binary tree, the characteristics of binary tree, the definition of binary tree nodes, and the maximum and minimum values for searching, for more information, see Binary Tree concept A Binary Tree is a finite set of n (n> = 0) nodes.

(Long value) {Reference the current node, starting at the root nodeNode current = root;Loop, as long as the lookup value is not equal to the current node's data itemwhile (current.data! = value) {Compare the lookup value and the size of the current nodeif (Current.data > value) {current = Current.leftchild;} else {current = Current.rightchild;}If you do not find theif (current = = null) {return null;}}return current;}/*** Delete Node* @param value*/p

, while (!thestack.isempty ()) {int Currentvertex = Thestack.peek (); int v = Getadjunvisitedvertex (Currentvertex); if (v = =-1) {Thestack.pop ();} else{vertexlist[v].wasvisited = True;thestack.push (v);d Isplayvertex (Currentvertex);d Isplayvertex (v); System.out.print ("");}} Search complete, initialize, for the next search for (int i = 0; i 5. SummaryThe graph is made up of vertices connected by edges, which can represent many real world situations, including aircraft routes, electronic circ

than D), but the cardinality sort is only suitable for a key code with distinct structural characteristics such as strings and integers. When n is large and d is small, it can be sorted by cardinality. (5The sorting algorithm discussed earlier, in addition to the Cardinal sort, the other sorting algorithm is the sequential storage structure. In order to avoid a significant amount of time to record movement, a chain storage structure can be used in order to sort the records. Direct Insert sor