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Question: In order to speed up Dijkstra's algorithm for certain classes of graphs, let's see if we can use some auxiliary information. Suppose we want to find a shortest-path from u to v, and we have a *valid* heuristic, i.e.: For every node w, we have a value a(w) such that the distance from w to v in G is at least a(w) for all nodes w. Recall that Dijkstra's algorithm will maintain a set S of nodes whose distances to u are known, and once v is in S, we will have the correct distance from u to v. The node w added to S at every step is the node not in S with smallest label d[w].
Instead, let's add the node with the smallest value d[w]+a(w).
Prove that when v is added to S, we can stop and recover a shortest u-v path.
Describe each and every question in depth with examples.
Two CSMA/CD stations are each trying to transmit long documents. After each frame is sent, they contend for the channel using the binary exponential backoff algorithm.
1. describe the differences between our specifications of the sorted list adt and the binary search tree adt. 2. write
Write computer program to implement this algorithm and demonstrate the results and what is the machine run time in second for sorting array A?
Design an O(V+E) time algorithm that computes the smallest number of batches required to complete all tasks. A task can be assigned to a batch i if and only if all tasks that are its prerequisites have already been assigned to batches 1 to (i-1).
Describe open source and proprietary databases. What are some drawbacks and benefits of each type of database?
Illustrate that if you were given a polynomial time algorithm for determining whether two rooted directed acyclic graphs are isomorphic, then polynomial time algorithm for testing.
Show how the algorithm would proceed to find the two closest points from the list [(1,2),(1,11),(7,8),(9,9),(12,13),(13,4) ,(20,8),(22,3),(23,12),(25,14),(26,7)(31,10)].
A microcomputer memory is built from 64K X 1 DRAM, with DRAM cell array organized into 256 rows. Each row requires being refreshed at least once every four ms, strictly on a periodic basis.
Expalin the search algorithm that results from each of the following special cases. How does it relate to other algorithms we have discussed.
A digital computer has a memory unit with 32 bits per word. The instruction set consists of 128 different operations. All instructions have an operations code part (opcode) and an address part (allowing for only one address). Each instruction is s..
Explain and analyze the algorithm to determine the length of longest substring that appears both forward and backward in an input string T[1 . n].
Describe and analyze an algorithm to determine, given the initial sequence of cards, the maximum number of points that you can collect playing against a perfect opponent.
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