Computer Science Forum

Hey, [B][U]Problem:[/U][/B] Need to find an algorithm that given 2 sequences of [B]n[/B] numbers each, say [B]S1[/B] and [B]S2[/B], and 1 number, say [B]x[/B], it would tell if x is in the sum result of S1 and S2. The hashing function, say [B]h[/B], must be picked at random from a …

I just wanted to know what famous algorithms that you should have in hand? or be familiar with? or That is always used?

Hi, I currently studying computer science 1st year and I have trouble with practice exercise because I got exam tomorrow can you guys help me Here is my question: I have done some sql query am not sure It correct or not ITEM([U]INO integer[/U], INAME: varchar(10), DEPT: integer, PRICE: float, …

I'm so confused on how to calculate the running time of an algorithm. i've searched online but i can't seem to understand any of the explanations hence my question: how do you calculate the running time of any algorithm? Please i'd love an explanation with any example or you can …

can somebody tell me what can be the application of bubble sorting.or what actually application of bubble sorting means is it the usage of bubble sort in different areas.please give me some applications of it..

Howdy! I've searched the forums and Google for ideas but all the information/advice I found was either not helpful or inaccurate. So, perhaps someone here can help point me in the right direction. I'm heading off to University next year but, before I do that, I'd like to study some …

Which is the difference between overloading and polymorphism?

Hi, I have a method that returns a list of images. I will say, (get_images str) and (list-ref item num) simply displays num'th element in the list. From the list, I need to print all of the images recursively. And I noticed DrScheme is not smart enough to perform more …

Hi World, Im stuck on my Computer Science Homework. Ive found out that I need to compare it to a full adder and that is that. Can someone help me go step by step through it at I have to hand it by Friday and I am quite confused. I …

i need help on how to convert ucs2 to utf8 i dont want to use any functions that instantly converts the 2 what i want to do is that from what i have read about this topic that ucs2 has 16 bits i want to convert the 16 bits to …

Would you help me with this question. Just using basic and easist language. Design a grade average program that will produce the numerical grade average of test scores input by a user. Your program should contain the following: • You must use an Array as your data structure to store …

I'm new to this stuff, so bare with me! I'm trying to determine the time complexity of a recursive algorithm which reverses the branches of a tree. The algorithm in R goes as follows: [CODE]rev <- function (x) { if (is.leaf(x)) return(x) k <- length(x) if (k < 1) stop("dendrogram …

I have a list of productions. There are several instances of left recursion in it. I'm having trouble eliminating them even after reading my notes and the textbook on it. *Production* (With AST definition) MuMu-program: declaration-list; stmt-seq {Mumuprog l: id r: stmt} stmt: id := expr {assstmt l: id r: …

I am trying to alphabetize by generating a weight of a word, saving those numbers, and then comparing which numbers are greater. Don't ask me why I need to do this way. So I am trying to come up with a function that calculates the value of a certain word. …

Hello, idk if i am in a right area... well, my question have to do a bit with programming.... All devices are programmed to do 1 work, i really wanna know how airplans/radar works... i can't image any example of code and i guess on radars/airplan systems is not used …

If a binary tree can be represented with the array data structure in an efficient way(it means there is no blank key in b/w two non-zero elements) then it cannot be designed uniquely with the help of which of the following traversals? 1.Preorder 2.Inorder 3.Postorder Please answer this question.It is …

No luck in youtube so don't suggest Good article would do it too

i need help on comparative analysis of waterfall,prototype and agile methodologies.give me some instructions how should i do it.i have to write a 3000 words essay on this topic.what points should i keep in mind while writing it

Currently I am studying multi-thread, and I feel pretty confusion about the concept of blocking, non-blocking, synchronous and asynchronous. Exactly, there are so many explanations, and each of them have something differents, someone says synchronous could be non-blocking too, someone says synchronous must be blocking.Someone says asynchronous must be non-blocking, …

This is my time to build a final year project. Am a UG Computer Science Student. Though I have 6 month to start my final year project, Am forced to submit the ABSTRACT of the project in a week or two. I tried in some search engines but am not …

Especially in "java" but other programming languages too. What's the hardest thing you got told to create? I'm about to start my second year and am wondering what sort of stuff may await me and see if I should start practising now or not.

It is my understanding that with over 115,000 signed-up, it constitutes the largest MOOC [ [url]http://en.wikipedia.org/wiki/Massive_open_online_course[/url] ] ever. Certainly an historical experiment with possible future changes in delivery of University-level education: [url]http://www.reddit.com/r/aiclass/comments/kp1wb/amazing_we_can_probably_offer_a_masters_degree_of/[/url] I've decided to take the Basic track so that I only take the quizzes, but get to miss …

Which statement is NOT TRUE? 1) for all x E Z: if x^(squared) - 5x + 6 = 0, then x > 1 and x < 4. 2) there exists an integer x such that x < 0 and x^(squared) + 4 = 0. 3) there exists an integer x …

Hello.. i need some help.. WHich lang to use for my proj on Online recruitment system.. And how 2 start.. I haven't studied asp,vbscript.. what shd i do.. i m really worried. plz help.

This the question. Given. A = [1 -1 2 -2 3 -3] And matrix B = [1 0 2] what is the product A.B? Ok I'm confused because the number of rows in A is 2 and number Of columns in B is 3. So the sizes of matrices do …

I have to find a cost optimal solution for staying on campsites. It is kind of weigthed interval scheduling with a given number of intervals (nights). I wonder how to tackle it, dynamic programmic will work for cost optimizatation gernerally but how to build in the restriction on the number …

Let G = (V, E) be a directed graph, with source s belonging to V, sink t belonging to V, and nonnegative edge capacities. Give a exist a polynomial time algorithm to decide whether G has a unique minimum cut (basically an s-t capacity strictly less than that of all …

Ok, so I am a freshman in college. I am taking a Software Programming class this fall semester and I'm totally lost. The teacher has to be the worst teacher ever. I've been trying to learn from the internet, but I decided to come to a forum where I could …

i am searching for Matlab or Simulink code for a beamformer (a faamily of algorithms in array processing, part of digital signal processing with emphasis on LMS and RLS algorithms thank you for any help, links, ...

Hello, I'm interested in becoming a computer software engineer when I get older. I'm currently a sophmore in highschool enrolled in an engineering program. I enjoy it a lot and plan to take the program throughout the rest of my highschool career. For one of our projects I need to …

I mean,How do they 1.Compile an English written High level language to Binary and understand,execute it 2.How computers do calculations using these 1s and 0s or electricity differences ? etc.... Name the books or give the links thanks

Give a converse of the following expression: [(p Λ q) V ¬r] --> ¬[(q V ¬r) --> (¬p Λ r)] This is my answer : ¬[(q V ¬r) --> (¬p Λ r)] --> [(p Λ q) V ¬r] Is this right? Please help.

Hello all, I'm a Jr. in college and I haven't studied machine learning yet to any extent. I would like to at least know how to specify this project I have in mind though. Basically I'd like to have a number of input images to "train" the software with, and …

Hello guys i need your help to finish my project in computer programming so guys i need your help problem: the new telephone company has the following rate structure for long-distance calls: a. The regular rate for a call is $0.40 per minute b. any call started after 6:00 PM(1800 …

Hi Everyone :) I know you don't like homework help..but I have tried to answer it and got a resit and now I have no idea!! Can someone please please help me to figure out which ones are correct??? Which of the following statements are correct when considering backing up …

[CODE]I am planning to make an application that can graph all functions.(polynomials, rational, trigonometric,etc) but I can't make a decision on which programming language I am going to use. I am choosing between Java and VB.net. what are the ups and downs of these languages? Which one would be better …

I'm a Jr. in college and I'm in some clubs. This year the school has decided to make every club use a web site to track community service, attendance, etc.. The issue with this is the web site sucks. The way we were suppose to go about doing this was …

Hi, I have created for an e-Learning Web Application. I am not sure if the concept I have chosen is correct and would appreciate any sort of guidance or assistance to improve the design. Please see attached screenshot of database design.

Hello everyone. I am conducting an academic research on the use of web based IDE. It will be of great help if you can give your suggestions. I have setup a survey regarding this. Please spare few minutes to answer them. Feel free to pass this survey to your friends. …

Hey everyone. I've been contemplating something lately and I haven't been able to come to a conclusion, so I thought I'd see what you all thought about it. When checking for null (nevermind that we should try to not make something null in the first place), would it be better …

hello?? every body know what just now a question came to my mind:-/ :idea:to which i'm unable to figure out the answer:confused::-O hope fully you pepple can help.The question is how to create an antivirus on your own:icon_question:thank you advance:icon_biggrin:

for the PDA: d=delta d(q0,a,Z) = {(q0,AZ)} d(q0,b,Z) = {(q0,BZ)} d(q0,a,A) = {(q0,AA)} d(q0,b,A) = {(q0,BA)} d(q0,a,B) = {(q0,AB)} d(q0,b,B) = {(q0,BB)} d(q0,c,Z) = {(q1,Z)} d(q0,c,A) = {(q1,A)} d(q0,c,B) = {(q1,B)} d(q1,a,A) = {(q1,e)} d(q1,b,B) = {(q1,e)} d(q1,e,Z0) = {(q1,e)} the cfg rules are: S -> [q0 Z q] [q0 …

Hi everyone, I'm just adding these two binary numbers and not sure about the sub-questions(a,b) of the question that are below: Q1 - What is the (5-bit) result of adding the 5-bit unsigned numbers 10001 and 00111? Answer: 11000 Q1a - What is the value of the carry in to …

If X[0], X[1],...., X[N - 1] is a list of N numbers and the mean (average) of these numbers is M, then we define their standard deviation to be the square root of the number: ((X[0] - M)^2 + (X[1] - M)^2 + ... + (X[N] - M)^2) / (N …

I recently attended an interview in which i have been asked this question. " A person is sending a gmail to another person. now u have to explain the process that will happen along with the network layers and where in the system these layer functionalities are implemented" eg: application …

Hi all I'm not sure is this the right place to post this, other places are strongly oriented to the real programming. However... I know some MD5 hashes contains only numbers or letters, but I don't know which one. Some string X gives only letters in the hash, Y gives …

plz can any one help me out???

Forgive me if this is in the wrong spot. If it is, please move it to the correct location. Hello all, I am at square one of a very large project. I understand it will be a great undertaking and I'm not expecting miracles. In fact, I'm not expecting code …

To walk, the robot must receive input in meters, how long it has to walk. The robot will compute the distance it has moved every 1 meter. The process of checking the distance will be repeated every 1 meter until it finishes the movement. [B]My Pseudo code Design:[/B] [CODE] start …

I want to know how the structure of C++ program resembles to a client server architecture?