Computer Science Forum

Can anyone explain what logical mobility is or direct me to a decent link to research from as im just finding pages with the word being used but no explanation to the meaning Thanks

Im making a program the that uses wild cards on files example /home/My*/n?w/*txt im trying to make a binary tree of paths because base on the example the My* can be MyDocu MyHome etc, at the n?w can be new naw etc and get all the txt files i dont …

I have about 86 process in around 950 threads.Why that much of threads?my laptop is not a server? Windows 7 ,core2duo ,2GB ram why 950????????that much?why can't be there only process ? thanks

Is there available programming language for Bayanihan Linux?.. :(:(:( Ahm can i have some?..

hi I'm a newbie in learning c++ and java..I was just thinking if what is the best operating system and compiler and why?

Hi, There is a small blogging system where a user posts small blogs and they are time stamped, if this system was expanded into a distributed environment the main issue I can for see is with so many people using the system then posts will go out off order, the …

I was trying to find a solution for checking the symmetry of a tree. I would like to get some comments on the approach.. I am trying to do it by modifying the inorder traversal thing.. The pseudo code is: [CODE] // since the structure should be similar string in1,in2; …

Hi I have been given a homework question asking to compare a made up Cipher along with know Ciphers, the cipher i have been given is called name cipher it takes the last letter of your first and second name and gives them a value and then adds them together …

Hey, is there a way to replace a single characters by 2 characters in a string ???? This was asked to me at 1 of the interviews. I answered linked list, I mean, take each node as a character, so u can easily insert 2 nodes, if u want to …

Hello. ^^ I would like to know why most pointers of most languages restricted to pointing at a single type object. Is it because for readability purposes? Memory address? Or another reason? Thanks. :)

Hi there... A little mental blockage ='-( The scenario: 1. A thief has a bag that cannot be larger than 5m^3. 2. He is a superman, and he can carry ANY amount. 3. He finds piles of valuable powders. He plans to steal them... naughty naughty. 4. Each pile is …

I wonder how can I program without any operating system in my computer? is that possible?

What is the number of swaps required to sort n elements using selection sort, in the worst case? The site i am referring says theta(n). Shouldnt it be theta(n2), cuz worst case it requires n swaps for each of the n elements.

[ATTACH=right]16125[/ATTACH]Google has been speaking about their commitment to be a[URL="http://www.google.com/intl/en/corporate/green/index.html"] cleaner, greener company[/URL] since they announced their commitment to become a carbon neutral enterprise back in 2007. Now, they have made a new green energy deal that could help give wind power the boost that it needs not only to …

My company is planning to develop a web search engine with a crawler, and we're considering using three languages, namely C++, Java and Python. Now we're a bit not sure which language is best suitable for features like web crawling, extracting keywords & indexing, ranking of indexed pages and searching. …

Well, i won't be programmer, but programming is a part of my life i like it. I Really confused, im 22 years old, and im in Informatic HSchool, i know that if i follow to be programmer that is good thing because i like it + as i know programmers …

Guys , for this question, i have been able to come up with the O(n logn) - by sorting, and O(n.k) - by Tournament Principle algorithms, I read in a few places about Ordered Statistics but couldnt get anything out of it. Please can some1 give me an O(n) algo …

Hi all! I am a BSc. IT (Hons) student and am doing my research project in the field of AI, more specifically, affective computing, which basically deals with emotions within computers, either detecting them, displaying them or both. I am focusing on designing a computer program to detect emotion. The …

I have 2 doubts 1)what is the default value of a mutex ? Is it 0 or 1? 2)Why cant we have a code like, this to solve the Concurrency issues. I mean, i know its not possible, but this was asked to me at an interview ... [CODE]if(pid == …

Hello Everyone, I just have few questions about the the job of web developer and I hope that I selected the right place 1- what is the difference between web developer and web coder ? 2- should a web developer study computer science deeply , before starting a career & …

hi!i need idea for final project of bcs honours..plzzz any1 give idea about the topic and the language name which would be used e.g JAVA.C++,C# etc....regards thanxxx

Recently I have been trying to get my head around the PackBits compression algorithm and I'm having problems. I understand that the packets consist of a one byte header followed by the given data and if the value of the header byte is positive, it is followed by the same …

I have this problem and haven't solve it, yet. who has any idea, please give me :) the problem is: give a sequence with n elements (n<=10^6), for example 4 3 2 1 and 2 number L,R (left and right) count how many pair (i,j), i<=j that: [CODE]L<=A[i]+A[i+1]+..+A[j]<=R[/CODE] someone will …

This is dumb and I've been banging my head against it for the better part of the day, so perhaps someone here could help me see the light I keep missing. Let's say I have a string of 0/1's (or heads of tails coins, or yes or nos etc) For …

Hello! My question concerns software architects that have experience with UML/UTP. [U]Introduction:[/U] We are currently in the start phase of a new project, where documentation for hardware with embedded software is written. I am responsible for the GUI development. As the starting point, a predecessor model is used. Its GUI …

guys, i am having trouble printing the LCS. This is the algorithm i am following to get the count of the LCS. [CODE]int main(void) { printf("\nThe LCS is %d",LCS(0,0)); } int LCS(int m, int n) { if(m==l1 || n==l2) return 0; if(X[m] == Y[n]) return 1 + LCS(X[m+1],Y[n+1]); else return …

Hey is there a way to find the maximum occuring character in a string without using a hash map. ? Maybe in dynamic Programming or something ???

hello all, please i want to ask a question about a size of the charecters i read some where that 2 charecters is ‎32 bit strings‎!!!! isn't 2 charecter is 16 bit? so what is i have problem with?? and how it is computed truly? thanks very much to any …

hey, is there an optimized way to generate primes between 2 limits ? I was recently asked this question in an interview. Obviously, the Brute Force method would be to run a loop between the limits and check if each number has a factot between 2 and square-root of the …

[CODE]#include<string.h> #define MAX 15 #define true 1 #define false 0 /*Structure Decvlaration*/ typedef struct { char data[MAX]; char top; }STK; /*Function Declarations*/ void input(char str[]); void intopre(char str1[],char pre[]); void intopost(char str1[],char post[]); int isoperand(char sym); int prcd(char sym); void push(STK *s1,char elem); int pop(STK *s1); int empty(STK *s2); int …

Hello, I am trying to remotely connect to my mac that is at home. It appears when I am on my network, I can ssh into it without any problems whatsoever. If I try and ssh outside of my network it displays an error saying "Connection failed" Is there a …

I have a question regarding Dijkstra's algorithm (priority-first search) To be precise: In [url]http://flylib.com/books/en/3.56.1.58/1/[/url] The statement to reassign the weight of tree vertices to 0 is needed for a general PFS implementation but not for Dijkstra's algorithm, since the priorities of the vertices added to the SPT are nondecreasing Note …

[B]Don't they both do pretty much the exact same things?[/B]

I am trying to figure out the time complexity for a best case scenario shell sort. I know worst case is O(n^2) and I think best case should be O(n^2) as well because even thought its already sorted it still has to break the array down into gaps and check …

1) Let X be the length of the first linked list until intersection point. Let Y be the length of the second linked list until the intersection point. Let Z be the length of the linked list from intersection point to End of the linked list including the intersection node. …

Hello Everyone. I am looking to make a program that uses the webcam that is integrated into my laptop. What I would like to know is how would I go about doing this? What I mean is, is there a standard API or library that I can use. Am I …

Hi I wasn't sure if this was the right section or not How is a GUI implemented in modern operating system. Currently I use win32 code to generate a window and then use openGl with C++ to generate the application. How is explorer.exe (the windows interface) designed and built. Does …

Ok guys i am suppose to simulate an atm machine declare a variable to store the acct balance there shud be three options 1. if the user choses option 1, print balance 2. If the user choses option 2, ask the user to enter amt they want to withdraw. accept …

i want to pursue M.tech. from IIT but most of the people say that after M.Tech,u r limited to the field of teaching or research. I m interested in company jobs..plz do tell me if its useless to pursue M.Tech from IIt if i want to get a job in …

Hey, I'm a 4th year CS student. And I need a topic for my thesis. Anything related to software or any CAI or gaming would be great. :) Please help me! :S

I'm not sure if this is the right spot to put this. I was wondering how would you create and operating system like linux or windows or novell. What programs would you use. I've always wondered how it was done. I would love to learn to create my own.

I installed Oracle 11g R2 on my Windows 7 64-bit OS.When i'm trying to login to SQL Plus,i can't.As i remember my Username and password is correct.Is there any method to login without giving username and password? or is there a way to get my username & password?Please help me....

Design a program using psuedocode to accept :name, gross salary, personal status, number of children (50employees) Calculate and print: name, gross salary, income tax for all Rules: personal allowance $12000 single person $23,000 married. child allowance $1000 per child. Taxabl;e income gross salary- personal allowance and child allowance. Income tax …

Hey, i was trying to implement the sqrt function in c, and this was what i came across, and it works abs fine. But i dont get this , is this a standard logic based on Taylor, Maclaurin or something ? Is this more of a programming question or a …

Greetings, I am a student from Greece, currently studying Computer Science & Telecommunications. The time to choose a Bachelor thesis topic is approaching and I haven't come up with anything yet. I know I would like it to be modern and be about innovations of today, and I don't mind …

hi i m bachelor student i want to know about different methodologies used to develop certain software. i know little about waterflow process model, spiral process model, V process model. i know the name of object oriented model bt dont have any knowlegde about that. i m trying to develop …

Hi guys, planning to do my masters in computer science. I'm very R&D oriented and interested in scientific software. Currently i'm a C# developer in multi-threading environment. I'm pretty comfortable in c/c++ as well. Looking forward to master a subject. Stuff that i'm interested are computer architecture, image processing and …

Hi all, I am a student and would like to know where i can get a free download of matlab. Is that possible anywhere?

how can i detect all cycles in the graph? i tried to use DFS and back edges and this ddetect some loops in te graph but not all cycles.

In a flow chart ,what does both <> marks together mean? <>600 ? that <>600 is in a decision box