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  • Revision, Quadratic Time

    - by stan
    I am not sure if you can post revision programming questions in here but i am stuck with some algorithms revision If an algorithm is quadratic it takes time proportional to the number of n^2 ? So if the slides say its almost 1/2 the square of n records is this the same as saying (n^2 * 0.5) Thanks

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  • Manipulating values from database table with php

    - by charliecodex23
    I currently have 5 tables in MySQL database. Some of them share foreign keys and are interdependent of each other. I am displaying classes accordingly to their majors. Each class is taught during the fall, spring or all_year. In my database I have a table named semester which has an id, year, and semester fields. The semester field in particular is a tinyint that has three values 0, 1, 2. This signifies the fall, spring or all_year. When I display the query instead of having it show 0 or 1 or 2 can I have it show fall, spring etc? Extra: How can I add space to the end of each loop so the data doesn't look clustered? Key 0 Fall 1 Spring 2 All-year PHP <? try { $pdo = new PDO ("mysql:host=$hostname;dbname=$dbname","$username","$pw"); } catch (PDOException $e) { echo "Failed to get DB handle: " . $e->getMessage() . "\n"; exit; } $query = $pdo->prepare("SELECT course.name, course.code, course.description, course.hours, semester.semester, semester.year FROM course LEFT JOIN major_course_xref ON course.id = major_course_xref.course_id LEFT JOIN major ON major.id = major_course_xref.major_id LEFT JOIN course_semester_xref ON course.id = course_semester_xref.course_id LEFT JOIN semester ON course_semester_xref.semester_id = semester.id"); $query->execute(); if ($query->execute()){ while ($row = $query->fetch(PDO::FETCH_ASSOC)){ print $row['name'] . "<br>"; print $row['code'] . "<br>"; print $row['description'] . "<br>"; print $row['hours'] . " hrs.<br>"; print $row['semester'] . "<br>"; print $row['year'] . "<br>"; } } else echo 'Could not fetch results.'; unset($pdo); unset($query); ?> Current Display Computer Programming I CPSC1400 Introduction to disciplined, object-oriented program development. 4 hrs. 0 2013 Desire Display Computer Programming I CPSC1400 Introduction to disciplined, object-oriented program development. 4 hrs. Fall 2013

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  • "Send it to a friend" button on a webpage

    - by kender
    Hey, How often do we see stuff like "Send this page to a friend" on a webpages? Well, I see them quite often. My question is, how do you guys see it's effectiveness? If I hit a webpage that's interesting, and I think my friend would enjoy it, I can just copy the URL from my browser bar, paste it into the email and press "Send" button. In my opinion, it's usually faster and less mistake-aware then the button/link like this on the webpage. In addition, I'm not really sure what this website does with the emails I enter there - don't they store it and then sell for $1/100 addresses to spammers? My question is - when you design a website, do you put such links on the pages (it's often seen on sites with some news/articles)? Does it even make sense?

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  • Simple Search and Replace use of Regular Expression

    - by nunos
    So, I am adapting some code I found online to suit my needs. However, my set_pixel function has two more parameters. Since there are lots of calls to this function even doing a quick paste over would be very tedious. So, I thought this would be a good time for me to learn some simple regular expressions. So, I have calls of this type: set_pixel(arg1, arg2); which I want to change to something like: set_pixel(arg1, arg2, arg3, arg4); Note: arg1 and and 2 should be preserved, whereas arg3 and arg4 are most of the time the same. How can I achieve this?

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  • What's the Erlang/Haskell job market like in the U.S.?

    - by Krystof
    I've heard that Telecoms are the big source of Erlang jobs but I'm not sure how much of a market there is. How likely is it that someone could find a job in Erlang/Haskell if they decided to learn it? In my case I have a lot of programming experience in Java but am tired of Java and want to try something different.

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  • How to extract the current state of the registry? (in C/C++, XP)

    - by Doori Bar
    I was wondering how one might extract the current state of the registry, of Windows XP, in C or C++? (While the OS is active). I been trying to use BackupRead() on the registry-files, but it is impossible to CreateFile() them. I managed to create a Shadow Copy of the registry-files, but it wasn't the current state of the registry. Would appreciate any hint... (I know ERUNT is able to do it) Thanks, Doori Bar

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  • Which methods are good to overwrite when creating custom NSManagedObject subclasses?

    - by mystify
    The Core Data Programming Guide talks a lot about what not to overwrite. So the question is: What is good to overwrite? Like I see it, I can't overwrite -init or -initWithEntity:insertIntoManagedObjectContext: So where else would be a good overwrite point to set up some basic stuff? Or is it generally not needed to do custom initialization? Does the whole thing rely only on accessing properties which then start to do fancy things? So no custom initializations?

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  • using python,How to cut the wav file between certain time ranges??

    - by kaushik
    How to cut the wav file between certain time ranges from multiple wav files and paste the segments together in a single wav file in continous time ?? For this i thou of a way,to store the contents of the wav file in array form and cut the segments required from the array copy thm in another file and convert it back into wav formant. but i hav no idea how to code it in python as i am a beginner in it.. plz help...any alternative methods which serve the purpose are also welcome.. Quick reply,xpected plzz.. Thanks in advance..

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  • What's the quickest way to dump & load a MySQL InnoDB database using mysqldump?

    - by Josh Schwartzman
    I would like to create a copy of a database with approximately 40 InnoDB tables and around 1.5GB of data with mysqldump and MySQL 5.1. What are the best parameters (ie: --single-transaction) that will result in the quickest dump and load of the data? As well, when loading the data into the second DB, is it quicker to: 1) pipe the results directly to the second MySQL server instance and use the --compress option or 2) load it from a text file (ie: mysql < my_sql_dump.sql)

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  • What is the best way to measure the memory usage of a C# function ?

    - by Duaa
    Hi all: I'm looking for an accurate way to measure memory usage of a C# program under Windows operating system. I'm using Visual Studio for programming my code and I want to know its time consuming for performance. Really, I tried to use the Task Manager, but I do not get an accurate measurment. Please, if any one know an accurate way to measure the memory consumption, please help me and thanks alot

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  • C++ Libraries similar to C#?

    - by cam
    I'm coming to C++ from a .Net background. Knowing how to use the Standard C++ Libraries, and all the syntax, I've never ventured further. Now I'm looking learning a bit more, such as what libraries are commonly used? I want to start getting into Threading but have no idea to start. Is there a library (similar to how .net has System.Threading) out there that will make it a bit easier? I'm specifically looking to do Linux based network programming.

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  • Copying subversion commit messages

    - by Falcor
    I know this isn't the BEST practice, but every once in a while when I'm merging up a huge batch up changes with the trunk (and I know my branch is current), I will simply delete the contents of the trunk and then copy the contents of my branch up, so that I don't have to deal with resolving conflicts for an hour. The problem is that I seem to lose the entire history of commit messages for each file. My branch still has the correct history of commit messages... how can I merge them up?

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  • Getting scp's status bar to appear in a Java window

    - by pete
    I'm writing a program that uses scp to copy files in a bigger java program. As it stands now, the program freezes up while the scp is copying the file, which can take a few minutes, so I'd like to be able to display the progress of the scp or at the very least get the terminal window with the scp progress to show up! Any suggestions?

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  • Data Structure Used For SMS Messages In Android

    - by Greenhouse Gases
    Does anybody know what data structures are used to the store messages in an SMS client app, and whether there is an existing API for this. I was perhaps looking at implementing a link list for the purpose but if the work has already been done in an API then perhaps it would be unnecessary to commit time to the task that could be spent programming other parts. Many thanks

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  • Sql Server Development Server and Live

    - by Chris
    I have a database project that goes through iterations (only one so far) and I need to deploy a testing version to a live server. I'm not sure how to go about this. I can make all the changes in a copy and then remake those changes in the live version. That doesn't make sense. Is there a way to change a server name to an existing server? What's the best practice for this scenario?

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  • mysqldump problem with case sensitivity? Win->linux

    - by acidzombie24
    When i dump a table with uppercase letters using mysqldump it comes out as lower case in my dump.sql file. I found a report here in 2006, almost 4 years old http://bugs.mysql.com/bug.php?id=19967 A solution here suggest making linux insensitive. I rather not if possible. Whats the easiest way to copy a win32 db into linux?

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  • Subversion causes network problems

    - by richard
    I often use tortoisesvn to checkout or update a working copy on a development server. Whenever I do this, it seems to slow down the network and other users complain that browsing websites and accessing files on the dev server is slow. Is this a common bug in Subversion or has anyone else has come across similar problems?

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  • echoing our parts of an Array?

    - by Wes
    I have the following array that I get as an output from facebook: http://www.paste.to/v/1jntlnml With the following code: $stream = $facebook->api_client->stream_get('',128342905144,'0','0',30,'','','',''); foreach($stream as $wallpost) { echo '<pre>'; print_r($wallpost); echo '</pre>'; } So I get the data that I need, but I want to call the individual variables within this array. For example, echo out the [message] for each post. Since it only loops once, I cant echo $wallpost['message'] or anything similar. any idea?

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  • Win32 WndProc Name: why can't I change its name ?

    - by asksuperuser
    I have compiled a simple win32 app successfully with bc++ (2 lines excerpt only): LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM); wincl.lpfnWndProc = WindowProcedure; Why can't I rename WindowProcedure and compile this: LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM); wincl.lpfnWndProc = WndProc; as error message gives: Turbo Incremental Link 5.00 Copyright (c) 1997, 2000 Borland Error: Unresolved external 'stdcall WndProc(HWND *, unsigned int, unsigned int, long)' referenced from C:\PROGRAMMING\SALLY\WIN32TUTORIAL\MAIN.OBJ

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