This article mainly introduces 2-3 trees, and introduces the RB tree (red-black tree) by 2-3 treesComplete code attached2-3 Trees1.2-3 Trees2-3 Tree Concept:A 2-3 find tree, or an empty tree, or a tree consisting of 2-node, 3-node.2
black;2. The root node is black.3. Each leaf node (null) is black.4. If a node is red, its two child nodes are black.5. For each node, the simple path from this node to all its descendant leaf nodes contains the same number of black
The two-fork search tree is described earlier, and he has no problem with the efficiency of finding and inserting in most cases, but he is less efficient in the worst case. The data structure of the balanced lookup tree introduced in this article and later in this article ensures that the LGN efficiency can be achieved in the worst case, and we need to make sure that the tree remains in equilibrium after the insert is complete, which is the Balanced search tree. In a tree with n nodes, we want t
The red/black tree is a binary search tree. to delete the red/black tree, follow the rules of the Binary Search Tree. To delete node Z (5), delete the minimum value of Y in the right subtree of Z and then assign the value of Y to the Z node. :
Then we will consider the red and black trees.
1. The deleted node y is red. We will not handle it. It is still a red-
1. Insert Introductionthe first way to sort trees with two forks Add the node and mark it red. (Why not red?) Because if set to black, it will cause the root to the leaves of all paths, one path will have an extra black node, this is difficult to adjust. However, when set to a red node, it may cause two consecutive red nodes to conflict, which can be adjusted by re-coloring and rotation . The specific adjus
, as stated below:
Figure14: CommonRCCircuit
The relationship between the output voltage at both ends of the capacitor and the power supply voltage is as follows:
The relationship between the voltage increase amplitude and the increase time (lagging time) is as follows:
T (/RC)
1
2
3
4
5
UC/us
0.632
0.865
0.95
0.98
0.993
Table 1: lagging schedules
The
2-3-4 trees and red/black trees may look completely different. However, in a sense, the two are exactly the same.
There is a data item and two subnodes are called 2-nodes.
There are two data items and three sub-nodes called 3-nodes.
Three data items and four subnodes are called 4-nodes.
Rules for converting from 2
dwell on it.Direct Sticker CodeRight balance rotation processing function void Rightbalance (Bstree t) {bstree rc,ld;rc=t->rchild;switch (RC->BF) //Check the balance of right subtree of T in insert operation , and make the appropriate balance processing {case rh:t->bf=rc->bf=eh; L_rotate (T); Break;case Lh:ld=rc->lchild;switch (LD->BF) {case Lh:t->bf=eh;rc->bf=rh;break;case EH:T- >bf=rc->bf=eh;break;case Rh:t->bf=lh;rc->bf=eh;break;} ld->bf=eh; R_rotate (T->rchild); L_rotate (T);}}From t
program design ". Experiment 1 Configuration
Black gold FPGA model: Cyclone II ep2c8q208c8
1. You have added five. V files to the experiment. After the compilation is successful, the hierarchy will be shown in another figure. Top_module file organization
Four other functional modules.
2. About the circuit pins of the
1, Border-radiusBasically, a lot of people use it this way:{ Border-radius: 4px;}A little bit higher{ Border-radius: 4px 6px 6px 4px;}This is how the ultimate black technology is used.{ Border-radius: 10px 10px 30px 2px/50px 50px 10px 3px;}EffectBorder-radius It can assign 8 values:The front of the slash is in the horizontal direction, and the slash behind it affects the vertical direction,Each number represents four different directions.
interface-style management, and then click on the default template editing, in the normal font and the small font before adding the font you want (such as Microsoft Ya Black, xxx,xxx), each row to the back, if the previous font does not show the followingThe effect after the change (note you do not have to define another CSS file in the page to overwrite the existing font)Discuz Common Minor issues 2-How to
Operating Environment 1 Operating system: Redhat 6.5IP Address: 192.168.10.128Host Name: zred2 Operating system: Win 7IP Address: 192.168.10.10Verify that two hosts are interconnected.Requirements: Configure home directory imprisonment, account black and white list.First, we restart the service.Then we use a mod user created before WIN7 to log on to the FTPYou can see the default, we are logged in the user's home directory, and can upload files to the
character equals ' G ', then the corresponding cup of tea should to be green. If some character equals ' B ', then the corresponding cup of tea should is black.
If There are multiple answers, print any of them. Examples Input
5 1 3 2
Output
Gbgbg
Input
7 2 2 5
Output
BbgbgbbInput
4 3 4 0
Output
NO
The question: have
installed wine to run Diablo 2.
Installing wine in Ubuntu is very simple. It can be done through the new software package manager.
After the installation is complete, the wine group will appear in the Application menu. After installation, no configuration is required. However, you must first install the graphics card driver and then perform the wine step.
Run Diablo 2. I copied the Diablo folder directly f
local variables, the function can directly manipulate the member variables of a class3, the function call is directly through the function name to callObject method:1, which is subordinate to the object of the class, only the object of that class is called2.member variables can be accessed directly in the object method, because they are all objects that belong to the class.Creation of ObjectsObject * obj = [ class name new]; 1. Createstorage space for class objects in the heap2.Initialize all m
. That's the same thing on the above project. Max-height Pain points cannot be setIn addition, the use of margin will need to consider the problem of margin folding (reference code BFC related),padding no such annoyance. Ha, the container will give you, to add content to the container, but can not add extra height, it can only use position:absolute ~ Finally, the sass is as follows: //placeholder is controllable height: false (cannot control min-height, but no redundant structure) True (can c
because we can get exposure from other publishers. The bottom line may be set lower than our bid, but may be higher than the second bid, so we will give up a portion of the profit to the publisher. This is the meaning of exchange : Market mechanisms use competition to make profit margins bigger. It is important to note that at the macro level, publishers do not have to sell their traffic all over the RTB : They can sell it at a higher price by way of contract advertising. In terms of advertisi
Today's group Progress:1, the team members initially run the measured web system, generally familiar with the function;2, write the requirements specification;3. Preliminary design test Case4. Installation Test Tool SOAPUI1) Download a soapui software from the official website, download success is an EXE executable file, double-click to execute2) After the Installation Wizard is complete, you can see the following, click "Next" to enter the next step3
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