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In SAP system, you can use tools like RSECNOTE and SAP EarlyWatch Alert which can be to find out the patches and verify their implementation status. You can access RSECNOTE by executing Transaction code: SA38 or ST13.RSECNOTE tool in SAP system is used to determine which important security notes or hot notes are missing in a system.You can refer more details about this tool in SAP OSS Note 888889. You can access this tool by calling T-Code: ST13 and entering RSECNOTE and then press F8 button.888889 - Automatic checks for security notes using RSECNOTE (outdated)You use transaction ST13 to start ... Read More
Drawing on the HTML canvas is to be done with JavaScript. Use the HTML DOM Method getElementById() and getContext() before drawing on the canvas.For that, follow some steps −You need to use the getElementById() method to find the canvas element.Use the getContext(), which is drawing object for the canvas. It provides the methods and properties for drawing.After that draw on the canvas.ExampleYou can try to run the following code to draw canvas on JavaScript − HTML Canvas var canvas = document.getElementById("newCanvas"); var ctxt = canvas.getContext("2d"); ctxt.fillStyle = "#56A7E2"; ctxt.fillRect(0,0,250,120);
An AVL tree (named after inventors Adelson-Velsky and Landis) is a self-balancing binary search tree. A self-balancing tree is a tree that performs some rotation within it's subtrees so that it can be balanced on both left and right side.These trees are particularly helpful in cases where insertions cause a tree to become heavy on one side. Balanced trees keep the lookup times close to O(log(n)) as opposed to an completely unbalanced tree that leans more towards the O(n) side.
Specifies height of the canvas.The HTML tag is used to draw graphics, animations, etc. using scripting. The tag introduced in HTML5.Let’s see a simple element with two specific attributes width and height along with all the core HTML5 attributes like id, name, and class etc.Here are the attributes −AttributeValueDescriptionheight pixelsSpecifies height of the canvas.width pixelsSpecifies width of the canvas.ExampleYou can try to run the following code to learn how to use canvas to create a rectangle. The canvas element has a DOM method called getContext, which obtains rendering context and its drawing functions. This function takes one ... Read More
AVL tree checks the height of the left and the right sub-trees and assures that the difference is not more than 1. This difference is called the Balance Factor.For example, in the following trees, the first tree is balanced and the next two trees are not balanced −In the second tree, the left subtree of C has height 2 and the right subtree has height 0, so the difference is 2. In the third tree, the right subtree of A has height 2 and the left is missing, so it is 0, and the difference is 2 again. AVL tree ... Read More
To balance itself, an AVL tree may perform the following four kinds of rotations −Left rotationRight rotationLeft-Right rotationRight-Left rotationThe first two rotations are single rotations and the next two rotations are double rotations. To have an unbalanced tree, we at least need a tree of height 2. With this simple tree, let's understand them one by one.Left RotationIf a tree becomes unbalanced, when a node is inserted into the right subtree of the right subtree, then we perform a single left rotation −In our example, node A has become unbalanced as a node is inserted in the right subtree of ... Read More
We can learn how we can insert a node in an AVL Tree. Insertions in AVL trees are the same as BST, we just need to perform one extra step called balance tree during insert whenever we move down the tree.This requires calculating the balance factor which we already saw before. And according to the configurations, we need to call appropriate rotation methods. These are pretty intuitive with the help of the above explanation.We again create a class method and a helper function for recursive calls − Exampleinsert(data) { let node = new this.Node(data); // Check if the tree ... Read More
Here is the complete implementation of the AVL Tree Class −Exampleclass AVLTree { constructor() { // Initialize a root element to null. this.root = null; } getBalanceFactor(root) { return this.getHeight(root.left) - this.getHeight(root.right); } getHeight(root) { let height = 0; if (root === null || typeof root == "undefined") { height = -1; } else { height = Math.max(this.getHeight(root.left), this.getHeight(root.right)) + 1; } ... Read More
The HTML tag is used for declaring a script within your HTML document. Through this, you can define client-side JavaScript. But, what if you want to add external JavaScript inside an HTML Page? Well, you can easily do that too using the src attribute of the tag.The following are the attributes of the tag −AttributeValueDescriptionasyncasyncSpecifies that the script is executed asynchronously.charsetcharsetDefines the character encoding that the script uses.deferdeferDeclares that the script will not generate any content. Therefore, the browser/user agent can continue parsing and rendering the rest of the page.srcURLSpecifies a URI/URL of an external script.typetext/JavaScript application/ecmascript ... Read More
A graph is a pictorial representation of a set of objects where some pairs of objects are connected by links. The interconnected objects are represented by points termed as vertices, and the links that connect the vertices are called edges.Formally, a graph is a pair of sets (V, E), where V is the set of vertices and E is the set of edges, connecting the pairs of vertices. Take a look at the following graph −In the above graph, V = {a, b, c, d, e} E = {ab, ac, bd, cd, de}TerminologyMathematical graphs can be represented in the data ... Read More