faculty of computer science ain shams university

... Questions Question 5 Imagine we have an empty stack of integers S, and two empty queues of integer Q1 and Q2 What would be the value of queues Q1, Q2, and stack S, after the following segment? ... and rear keep positions of the first and the last elements of the queue respectively Their values are -1 when the queue is empty Example 4 Followings are algorithms of insert, remove and getsize ... Write an algorithm for a function called RemoveSecond that removes the second element of a stack The order of other elements in the stack must be the same after the removal algorithm RemoveSecond

Ngày tải lên: 28/03/2014, 15:20

... and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario, Canada M5S 3E1 ‡ Department of Electrical and Computer Engineering, University of Toronto, 40 St George's ... regulation of AS is poorly understood Results: Using quantitative AS microarray profiling, we have identified a large number of widely expressed mouse genes that contain single or coordinated pairs of ... system Nervous system specific functions of genes containing CNS regulated AS events are listed in Table 1, and a more detailed description of the roles of some of these genes is provided in Additional

Ngày tải lên: 14/08/2014, 07:21

... Trang 1CS3102 Theory of ComputationHomework 3 Department of Computer Science, University of Virginia Gabriel Robins • This assignment is due before 11:59pm ... as examples of your PDAs execution on some input strings 2a Draw the PDA of 1.46(a) and explain how it works to recognize its language: 6 Trang 72b Give JFLAP screenshots of the PDA of 1.46(a) ... many of the problem-solving sessions as possible (hopefully all of them) We estimate that to fully understandand master the material of this course typically requires an average effort of somewhere

Ngày tải lên: 18/10/2022, 23:27

... Trang 1CS6160 Theory of ComputationHomework 1 Department of Computer Science, University of Virginia Gabriel Robins • This assignment is due before 11:59pm ... 26 of [Sipser, Second Edition].Short answer (formula in terms of c): Proof: Trang 62 Graph degrees: Solve problem 0.12 on page 27 of [Sipser, Second Edition] Short answer (proof idea): Proof: ... right to ask you to explain any of your answers verbally in person, and we will definitely exercise this option) • Solve as many of the problems as you can; please explain / prove all answers

Ngày tải lên: 18/10/2022, 23:28

... Trang 1CS6160 Theory of ComputationHomework 2 Department of Computer Science, University of Virginia Gabriel Robins • This assignment is due before 11:59pm ... Draw the DFA of 1.6(b) and explain how it works: 7 Trang 84a (continued) Give screenshots of the DFA of 1.6(b) and some executionexamples: 8 Trang 94b Draw the DFA of 1.6(h) and explain how it ... screenshots of the DFA of 1.6(h) and some executionexamples: 10 Trang 114c Draw the DFA of 1.6(i) and explain how it works:11 Trang 124c (continued) Give screenshots of the DFA of 1.6(i) and

Ngày tải lên: 18/10/2022, 23:30

... Trang 1CS6160 Theory of ComputationHomework 2 Department of Computer Science, University of Virginia Gabriel Robins • This assignment is due before 11:59pm ... Draw the DFA of 1.6(b) and explain how it works: 7 Trang 84a (continued) Give screenshots of the DFA of 1.6(b) and some executionexamples: 8 Trang 94b Draw the DFA of 1.6(h) and explain how it ... screenshots of the DFA of 1.6(h) and some executionexamples: 10 Trang 114c Draw the DFA of 1.6(i) and explain how it works:11 Trang 124c (continued) Give screenshots of the DFA of 1.6(i) and

Ngày tải lên: 18/10/2022, 23:31

... Trang 1CS6160 Theory of ComputationHomework 4 Department of Computer Science, University of Virginia Gabriel Robins • This assignment is due before 11:59pm ... right to ask you to explain any of your answers verbally in person, and we will definitely exercise this option) • Solve as many of the problems as you can; please explain / prove all answers ... many of the problem-solving sessions as possible (hopefully all of them) We estimate that to fully understand and master the material of this course typically requires an average effort of somewhere

Ngày tải lên: 18/10/2022, 23:32

... Trang 1CS6160 Theory of ComputationHomework 5 Department of Computer Science, University of Virginia Gabriel Robins • This assignment is due before 11:59pm ... right to ask you to explain any of your answers verbally in person, and we will definitely exercise this option) • Solve as many of the problems as you can; please explain / prove all answers ... many of the problem-solving sessions as possible (hopefully all of them) We estimate that to fully understand and master the material of this course typically requires an average effort of somewhere

Ngày tải lên: 18/10/2022, 23:33

... click here. Professional Want to learn more? Trang 7v Trang 11OUTLINE OFPrinciples of COMPUTER SCIENCE Trang 13Introduction to Computer ScienceWHAT IS COMPUTER SCIENCE? Computer Science is defined ... focus of computer science It’s also a fair question to ask, “How is computer science a science?” In contrast to physics, biology, andchemistry, computer science is not based on the study of the ... definitions of computer science emphasize the study of algorithms.Algorithms, in one form or another, are central to computer science Computer science combines the theoreticalconcepts of algorithm

Ngày tải lên: 27/06/2014, 12:20

... to Computer Science WHAT IS COMPUTER SCIENCE? Computer Science is defined in different ways by different authors Wikipedia (http://en.wikipedia.org/wiki/Computer_science) defines computer science ... focus of computer science It’s also a fair question to ask, “How is computer science a science?” In contrast to physics, biology, andchemistry, computer science is not based on the study of the ... definitions of computer science emphasize the study of algorithms.Algorithms, in one form or another, are central to computer science Computer science combines the theoreticalconcepts of algorithm

Ngày tải lên: 12/08/2014, 21:22

... but in computer science, because of the ubiquity of binary math, this is usually written as lg n, meaninglogarithm to the base 2 of n The total running time T of the merge sort consists of the ... comprised of two sets of numbers; the first “set” consists of the first number in the original list, and the second set consists of all the rest of the numbers.The first set is the set of “sorted” ... merge_sort again, passing a list of the last two numbers in NUMS.This will sort the back half of NUMS It’s back to level 1 of recursion 9 merge_sort calls merge_sort again, passing only the first of the

Ngày tải lên: 12/08/2014, 21:22

... handling of data is appropriate CPU /ALU The CPU is the part of the computer one thinks of first when describing the components of a computer Therepetitive cycle of the von Neumann computer is ... discussed the concept of the computer word, and theimplications of computer word sizes of different numbers of bits Data are encoded in different ways, depending on the type of data We described ... certain operations in response to instructions An instruction is a pattern of ones and zeros stored in a word of computer memory By the way, a “word” of memory is the basic unit ofstorage for a computer

Ngày tải lên: 12/08/2014, 21:22

... ((cdr n)), a list of one element (the element is another list,the cdr of the list of parameters), and the second line of cond would return a list instead of a number.Our version of sum now behaves ... checking for the length of n (the set of parameters in thecase of sum), but if the number of parameters is two or greater, sum uses the listSum function to computethe sum of elements 2 through ... regularity Regularity means consistency of behavior, consistency of appearance, and avoidance of special cases In C, an example of an irregularity is the use of the == Boolean operator.Any two values

Ngày tải lên: 12/08/2014, 21:22

... overrides a method of a superior class, thebehavior of the method will depend upon which type of object is being used in the program, an instance of thesuperior class or an instance of the subclass ... Trang 2Automobile or a new SportsCar will increment the count of Automobiles maintained by theAutomobileclass.We didn’t have to change any of our existing code to enhance our work to treat sports ... instances of SportsCar and instances of Automobile will be the behavior provided by the accelerate() method In the case of an Automobile, the maximum speed will be 70, but in the case of a SportsCar,

Ngày tải lên: 12/08/2014, 21:22

... deadlock detection algorithm works by maintaining several data structures First, the algorithm maintains a vector with the count of available resources of each type This vector is called Available ... instance of the class Thus, when one thread is executing any one of the synchronized methods of the class, no other thread will be allowed to execute any synchronized method of that instance of the ... results of the computation or the dynamic needs of the application The number of processes is not fixed, either; processes can be added to the mix at any moment, rendering previous calculations of

Ngày tải lên: 12/08/2014, 21:22

... destination computer will be a local computer on a network served by the last router in thechain When the data link software at the destination computer receives the message, the data link software ... transmitted between computers, possibly via a world wide web of computer connections, understanding the meaning of the message, and reacting appropriately, is theresponsibility of whatever application ... layer of the internet model provides computer-to-computer delivery using the internet protocol (IP), and it corresponds to the network layer of the OSI model. 3 The end-to-end (transport) layer of

Ngày tải lên: 12/08/2014, 21:22

... science, there will be 300 lines containing the words “Computer Science” Such a report isprobably not what one had in mind Probably one is interested in a list of the different major fields of ... subquery returns any rows ALL True if all of a set of comparisons are true ANY True if any one of a set of comparisons is true SOME True if some of a set of comparisons is ture Table 8-1 Trang 2Another ... enforce these basic constraints that are essential ifrelationships between entities are to be maintained satisfactorily Many times additional constraints must bemaintained in order to satisfy

Ngày tải lên: 12/08/2014, 21:22

... products of professional work 2.2 Acquire and maintain professional competence 2.5 Give comprehensive and thorough evaluations of computer systems and their impacts, including analysis of possible ... pertaining to professional work 3.3 Acknowledge and support proper and authorized uses of computing resources CAN COMPUTERS KILL? In particular, can software kill? Can software maim? Can software ... and to their peace of mind, regardless of the quality of their locks Software professionals should never condone the spreading of viruses, Trojan horses, or worms The ACM Code of Ethics provides

Ngày tải lên: 12/08/2014, 21:22

... development of timesharing computers, and has remained animportant part of scheduling for interactive computer systems? The round robin scheduler was the basis of the first timesharing computers ... programs as system software or application software, and explain your categorization: Java Virtual Machine system software—facilitates program development and executionExcel application software—used ... system software, because of the generality of a browser’s application A browser supports a multitude of user intentions,and it includes features that facilitate web-based applications of many

Ngày tải lên: 12/08/2014, 21:22

... Reading strategies by Students from the Northern Mountainous Provinces at the Faculty of Information Technology, Thai Nguyen University" 2 Aims of the study This study aims to: - Investigate what ... All of these serve as a basis for an investigation into reading strategies in English employed by students from northern mountainous provinces at Faculty of Information Technology, Thai Nguyen University ... Theories of reading that stress bottom-up processing claim that the reader processes all of the letters in the last word of the sentence, regardless of its predictability Obviously, in the view of

Ngày tải lên: 28/03/2015, 10:18