middle seasons

Interview topics will be more or less the choice of questions or simple questions: First we need to know the concept: Pre-sequence traversal: First access the current node, then access the current node's left subtree, and finally access the current node's right subtree. For binary trees, the depth traversal is the same as this. Regularity: Root in front, subtree after root and Supi right subtree, and the first is root node; In-sequence traversal: First access to the current node's left subtree,

Using the Linux desktop for a long time, has been accustomed to the left mouse button selected, the right-hand pop-up menu copy sticky.I did not expect Linux to use the middle of the mouse sticky posts, very convenient.Reference: Linux mouse key copy paste puzzle "Felix Egg Pain Science Stickers"Click the left mouse button at the beginning of the text you want to copy, then right-click at the end of the text to be copied, you have selected it, with th

Win7 64-bit version of the flagship download, we all found that it is more convenient to use, but for beginners, the first thing to do is to learn some basic knowledge, such as the operation of some shortcuts, the mouse button in the function and application and so on. Some people say that the mouse on those keys, nothing good to learn, is not. Here is a look at the Ghost Win7 system in the mouse button function of the application method. 1. Fast New In fact, you can use the

When we get a book, we don't hesitate to start reading from the beginning. Even when we hit the beaten, we continue to go on, and finally do not know what the book said. There is such a book. Start with us all the same. But I held on for two days, and I disarmed completely. He is called the principle of computer network. There is a spirit called Breaking the tradition, also called innovation. I have never given up. In the "Baidu Encyclopedia" everywhere in the wall, after a long swim in the net

Zheng, general Manager of Education Division, Beijing Beyondsoft Technology Development Co., Ltd., said that any software enterprise needs three kinds of talents: the first type is to know the technology, industry knowledge and management of software senior talent, namely "software gold collar"; The second category is system analysis and designers, called software engineers, "software white-collar" The third category is skilled workers or basic programmers, or "software blue collars", who can sk

@ Algorithm Learning The problem is: based on sequence traversal sequences + middle sequence traversal sequence, only one tree is established, then the pre-order and sequential traversal sequence are output. The four ways of traversing the tree and the code naturally do not have to speak much, and it is interesting how to build the tree by sequence + middle order. The first thing to say is that this is also

WPAD-based man-in-the-middle attack 0x00 Preface Windows Name Parsing Mechanism Research and defect utilization (http://www.bkjia.com/Article/201512/452217.html) is very inspired, so the actual use of further research, found that WPAD-based man-in-the-middle attack is very interesting, now we will share with you the results. 0x01 Introduction WPAD: The Web Proxy Autodiscovery Protocol allows the browser t

It is to add clues when traversing in the middle order. To distinguish between clues and children, we need to add two more variable ltags. If the rtag is true, it indicates that it is a clue, If it is false, it indicates the child; The general rule is to use pointer fields with null pointers to store the direct precursor; The pointer field with NULL pointer is used to store the direct successor. Of course, if it is not null, it will not be used to sto

depends on the "middle class". What is the "middle class "? The "middle class" refers to the vast majority of people with certain consumption power, which is difficult to judge, but at least I think the "middle class" has two features: 1. You must have a certain degree of digestion, that is, you can buy most of the th

Today to summarize the next two fork tree pre-order, middle sequence, order traversal mutual seeking method, that is, if you know the two traversal, how to find a third traversal method, the more stupid method is to draw out the binary tree, and then according to a variety of different characteristics of the traversal, can also be programmed to find out, the following we separately explained.First, we look at the characteristics of the pre-order, the

(pNode root){Stack S. push (stack_arg (root, 1 ));While (! S. empty ()){Switch (s. top (). line ){Case 1:If (s. top (). root = NULL)S. pop ();ElseS. top (). line = 2;Break;Case 2:S. top (). line = 3;S. push (stack_arg (s. top (). root-> left, 1 ));Break;Case 3:S. top (). line = 4;S. push (stack_arg (s. top (). root-> right, 1 ));Break;Case 4:Cout S. pop ();Break;}}}Int main (){Cin> line;It = line. begin ();PNode root = NULL;Plant (root );Cout Pre_order (root );Cout Cout In_order (root );Cout Co

Enthusiastic investment migrants in the middle class: Selling a suite in the Fourth Ring Road in Beijing to migrate to the U.S. industry news China Business News [microblogging] Li Lin I want to share 23 Middle-class "new" Immigrants Li Lin Editor's Note/once upon a time, spending money to migrate to Western countries is regarded as a lifestyle for the rich. Today, this so-called lifestyle has become a tren

Man-in-the-middle attack Concept The man-in-the-middle attack concept should be first defined in cryptography, so it is nothing new. The principle of man-in-the-middle attack can be used to represent: For example in cryptography, Alice, Bob, and Eve are usually used. We also follow this habit. Alice wanted to communicate with Bob, but she did not expect that the

In my customer base, a 40-year-old middle-level manager often asks me how I can maintain my competitiveness after I am 45, or how I can collapse my business, can you find a new job? However, they often worry that their abilities and energy cannot compete with young people. Once their experience can be replaced, they lose the ability to compete. Now I have a salary of 10 thousands or 20 thousands in a month, but I am confused about the future. The

The evolution of algorithms: "outputting post-order Sequences Based on the first and middle order sequences of Binary Trees" Clever if (Welcome to reprint, but please note the Source: http://blog.csdn.net/qiaoruozhuo) Not long ago, I saw a job "outputting post-order Sequences Based on the first and middle order sequences of Binary Trees". At that time, I referred to the practices in the data structure and

ARP is a double-edged sword for the network. On the one hand, ARP is an indispensable protocol in network communication. It is like a programmer, which determines the data transmission path to a certain extent. On the other hand, it is easy to be used by attackers and plays an inappropriate role. Currently, ARP attacks are not at a low level. Although there are also a lot of related measures, it is difficult to prevent them. To solve this problem, Cisco has designed dynamic ARP detection technol

ARP is a double-edged sword for the network. On the one hand, ARP is an indispensable protocol in network communication. It is like a programmer, which determines the data transmission path to a certain extent. On the other hand, it is easy to be used by attackers and plays an inappropriate role. Currently, ARP attacks are not at a low level. Although there are also a lot of related measures, it is difficult to prevent them. To solve this problem, Cisco has designed dynamic ARP detection technol

First, let's take a look at the features of forward, middle, and backward traversal: Forward traversal: 1. Access the root node 2. traverse the left subtree in the forward order 3. traverse the right subtree in ascending order In-order traversal: 1. traverse the left subtree in the middle order 2. Access the root node 3. traverse the right subtree in the middle o

For a binary tree to traverse, we can take 3 of the sequence of traversal, respectively, is the pre-sequence traversal, the middle sequence traversal and post-order traversal. These three methods are named in the order in which the parent nodes are accessed. Assuming that the parent node is n, the left node is L, and the right node is r, then the corresponding access traversal order is as follows: Pre-sequence Traversal n->l->r

ARP spoofing and man-in-the-middle attacksPreface: In the previous WPA/WAP2wifi password cracking note, we talked about how to detect nearby open APs and crack the access, so what can we do when we enter someone else's lan? In other words, what will happen if someone else enters our internal network? This article briefly introduces the principles of ARP and MITM, and hijack the traffic of the target host in the actual environment. Exposed the common p