Mark all the correct statements.A) If u → v is a back edge, then pre [v] < pre [u] < post [u] < post [[v]B) Ifu → v is a cross edge, then pre [u] < post [u] < pre [v] < post [v]C)If u → v is a tree edge or a forward edge, then pre [u] < pre [v] < post [v] < post [u]D) If u→ v is a tree edge or a forward edge, then pre [v] < pre [u] < post [u] < post [v]E) If uv is a cross edge, then pre [v] < post [v] < pre [u] < post [u]F) The running time of DFS is O (|V]²)G)Testing if a graph is directed acyclic (has no directed cycle) can be done in O (|V| + |E|) time.AEGB.

Correct statements of the given statements

Answered: ark all the correct statements. If u →…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Let H(x) = " plays hockey". Let B(x) = "x plays basketball". Which statement below means "Everyone who plays hockey also plays basketball"? OVx (H(x) ^ B(x)) Ox (H(x) ^ B(x)) OVx (H(x) v B(x)) Ovx (H(x)→ B(x)) Ox (H(x) v B(x)) OxH(x) 3x B(x) OVx (B(x)→ H(x)) OVx H(x)→VB(x)
Write a menu-based program that implement simple binary Search Tree and write the following functions for that: 1.Write a function Add () that add a single leaf on each call according to BST. 2. Write function Delete () that delete the provided value on each call if exist.3.Write function In order () to display list of all nodes using in order traversing technique.4.Wire function Preorder () to display list of all nodes using preorder traversing technique.5.Wire function Post order () to display list of all nodes using post order traversing technique.
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write a C++ program for a singly linked list delete node at k-th position without using loop. For example Input : list = 9->8->3->5->2->1 k=4 Output : 9->8->3->2->1 Input : list = 0->0->1->6->2->3 k=3 Output : 0->0->6->2->3 Note:use DSA concepts
B. Consider a Priority Queue where insertion in the queue is random. Your task is to write a function of DeQueue_All_Highest, where all nodes with highest priority node should be deleted. You will first find the highest priority in the queue and delete all nodes containing highest priority. A node structure is defined as follows struct QNode{ int data; int priority; node * next; };
1
Show a context-free grammar for each of the following languag Example 1: {a¹bm: m > n, m-n is even} Context-free grammar for the language: S -> aSb S -> Sbb S-> € Example 2: {albi: i, j≥0 and 2i = 3j + 1} Context-free grammar for the language: S->aaaSbb S -> aab
Program in Haskell (Replace the question marks with code). Has to be recursive: my_map :: (a -> b) -> [a] -> [b] my_map = ? my_all :: (a -> Bool) -> [a] -> Bool my_all = ? my_any :: (a -> Bool) -> [a] -> Bool my_any = ? my_filter :: (a -> Bool) -> [a] -> [a] my_filter = ? my_dropWhile :: (a -> Bool) -> [a] -> [a] my_dropWhile = ? my_takeWhile :: (a -> Bool) -> [a] -> [a] my_takeWhile = ? my_break :: (a -> Bool) -> [a] -> ([a], [a]) my_break = ? -- Implement the Prelude functions and, or, concat using foldr my_and :: [Bool] -> Bool my_and = ? my_or :: [Bool] -> Bool my_or = ? my_concat :: [[a]] -> [a] my_concat = ? -- Implement the functions sum, product, reverse using foldl my_sum :: Num a => [a] -> a my_sum = ? my_product :: Num a => [a] -> a my_product = ? my_reverse :: [a] -> [a] my_reverse = ?
* f:R-> R such that f(x) = 4x – 7 one to one not one to one onto not onto
Computer Engineering C++ Programming
12:34 A cs61a.org Implement add_d_leaves, a function that takes in a Tree instance t and a number v. We define the depth of a node in t to be the number of edges from the root to that node. The depth of root is therefore 0. For each node in the tree, you should add d leaves to it, where d is the depth of the node. Every added leaf should have a label of v. If the node at this depth has existing branches, you should add these leaves to the end of that list of branches. For example, you should be adding 1 leaf with label v to each node at depth 1, 2 leaves to each node at depth 2, and so on. Here is an example of a tree t (shown on the left) and the result after add_d_leaves is applied with v as 5. 3 2 3 2 4 4 5 5 5 Hint: Use a helper function to keep track of the depth! def add_d_leaves(t, v): """Add d leaves containing v to each ng

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