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  • Is using build-in sorting considered cheating in practice tests?

    - by user10326
    I am using one of the practice online judges where a practice problem is asked and one submits the answer and gets back if it is accepted or not based on test inputs. My question is the following: In one of the practice tests, I needed to sort an array as part of the solution algorithm. If it matters the problem was: find 2 numbers in an array that add up to a specific target. As part of my algorithm I sorted the array, but to do that I used Java's quicksort and not implement sorting as part of the same method. To do that I had to do: java.util.Arrays.sort(array); Since I had to use the fully qualified name I am wondering if this is a kind of "cheating". (I mean perhaps an online judge does not expect this) Is it? In a formal interview (since these tests are practice for interview as I understand) would this be acceptable?

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  • CS4326/7 sound chipset on Thinkpad 600E

    - by user7120
    OK, I know this has been a problem for a while, and I know by now this really old Pentium II laptop is really really really obsolete. However, I have installed Lubuntu 10.10 on this laptop and things seem to work fine except the sound. Now I've read and gone through a bunch of tutorials and guides to working around this, none of which have worked. I have gone through this Ubuntu bug report and that doesn't work either. The problem I think is that the latest workaround is (understandably) about two Ubuntu versions behind. Now I'm not sure what has changed since then to make that workaround not work, but I would appreciate any help. Thanks

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  • How do you ensure consistent experience across multiple graphics cards (or even driver versions)?

    - by Grigory Javadyan
    So I was writing a simple 2D game with OpenGL and SDL and had this problem when there was awful tearing when running in windowed mode (even though I explicitly asked SDL_SetVideoMode to use double buffering). Didn't worry about it all too much because most of the time the game grabs the entire screen, windowed mode is just for debugging. Anyway, yesterday I updated my nVidia drivers and tearing disappeared, the game runs smooth and looks nice in windowed mode too. I can see how the problem may be in the graphics driver, but this leads to a question. Obviously, professional game developers have to deal with a lot of different hardware/software configurations. What are the techniques they use to make sure the game looks the roughly the same on different graphics cards or even the same model of graphics card, but with different driver versions?

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  • Why Your Firefox 21 Crash ?

    - by Anirudha
    Originally posted on: http://geekswithblogs.net/anirugu/archive/2013/06/25/why-your-firefox-21-crash.aspxEvery new version of Firefox Come with new features. Recently people using Firefox 21 Reported that Their Firefox has crashed after click on X-close button. What is the problem ? Actually Firefox have trouble with “hardware acceleration”. You need to disable it. Try to go to  Tools > options > Browsing > uncheck the hardware acceleration. This is one of the problem in Firefox. If you have any kind of trouble then I recommended you to try https://support.mozilla.org/en-US/questions/new for get official help & support For Firefox

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  • Help with intel Imac 2008 Audio not working

    - by Tomtom
    I installed Ubuntu 12.04 and I get no audio except if i insert speakers and set them as headphones. This means really weird feedback and little volume. i'd like to set it back to the mac's default speakers but currently no matter what graphical interface i go into such as Audio or Alsamixer i can not fix the problem.Ive run alsamixer and looked thoroughly throught the forums but cannot find the answer to my problem. When i input cat /proc/asound/cards i get 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0x50600000 irq 47 Any help would be very much appreciated and as a newcomer i would be glad to give you any information you need. Thank you

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  • wordpress login encryption

    - by tech
    I am running wordpress with woocommerce and theme_my_login plugins. When a user registers on my site it sends them a confirmation email and then they can click to activate account. Problem is when the user goes to login they get an error of incorrect password. If the user uses the forgot password link and resets the password then they can login without any errors. What might cause this problem? Is the password being encrypted with the wrong method? I went through the registration process and checked the string in the php users table. password in php table after registration: $P$BF/gIt6dFfBBuNx6rP41Qv3i71TUie1 password in php table after change password to same password: $P$BxpByDbNU3vr3sytTOcbzttp1tOodH1 Do Theme my login and either woocommerce or wordpress use different encryption methods?

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  • Ubuntu One doesn't show captcha in windows 7

    - by Fredrik Hansson
    I try to set up a new U1 account in W7. However, the sign on screen reports "There was a problem getting the captcha, reloading" - but nothing seems to happen. I tried it on two different computers (in the same home network). Same result. Anything to do or is U1 for W7 corrupt? Also experiencing this problem. Trying to install latest U1 on brand new Toshiba Win7 laptops at work and the captcha field is simply blank, there is nothing to copy. Tried refresh, restart, reload and different browsers (Firefox 13, IE9) and nothing improved the situtation. Without being able to see the captcha I cannot do anything at all and will have to use silverlight if I can't overcome this.

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  • Server 13.10 Install Hangs

    - by noloader
    I'm trying to install Server 13.10 on some old hardware for testing (HP/Compaq dc5850, with Athlon X2 2.3 GHz dual core, 4GB RAM). The third screen is "Select Language" and the machine appears to hang. Ath e selection screen, the keyboard and mouse does not work. I integrity checked the CD and it checked out OK. I also performed a second ISO download and it cross checked with my initial download: $ md5 Desktop/ubuntu-13.10-server-amd64.iso Downloads/ubuntu-13.10-server-amd64.iso MD5 (Desktop/ubuntu-13.10-server-amd64.iso) = 4d1a8b720cdd14b76ed9410c63a00d0e MD5 (Downloads/ubuntu-13.10-server-amd64.iso) = 4d1a8b720cdd14b76ed9410c63a00d0e I was able to install Server 12.04 on the same machine. The problem with 12.04 is the OpenStack packages are too old, and I wanted to try something with fresher packages. My problem appears similar to I cannot install Ubuntu Server 12.10. The Installer hangs at the language selection, but my ISOs appear to be good and the disc appears to be good. Any ideas?

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  • How to simulate objects floating on water without a physics engine?

    - by user1075940
    In my game the water movement is done in a shader using Gerstner equations. The water movement looks realistic enough for a school project but I encounter serious problem when I wanted to do sailing on waves (similar to this). I managed to do collision with land by calculating quad's vertices and normals beneath ship, however same method can not be applied to water because XZ are displaced and Y is calculated in a shader :( How to approach this problem ? Is it possible to retrieve transformed grid from shader? Unfortunately no external physics libraries can be used.

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  • No desktop after installation of nvidia drivers

    - by hovmand
    I have a problem very similar to this guy: Desktop does not show when I installed nvidia drivers!. I have the same problem with the desktop not being present when I install choose the nvidia drivers from the software sources dialog. I've trie the answer mark as the solution, but this doesn't help me. Still get the same result / bug. I've also tried just to reconfigure it, like this guy says: http://ubuntuforums.org/showpost.php?p=12303179&postcount=4, but that didn't help me either. Then someone suggested that I should try Bumblebee. I followed the installation (https://wiki.ubuntu.com/Bumblebee#Installation) and after the reboot the resolution was still crappy, but this time the desktop did show up, but with bad graphics and I couldn't use optirun and it turned out that bumblebee couldn't start. I hope someone might know whats wrong or what I'm doing wrong. I have a Lenovo W520 with a nvidia Quadro FX 880M and I'm running ubuntu 12.10

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  • Encrypted usb stick not booting anymore how can I resolve the Disaster

    - by statquant
    Guys I am experiencing massive problem here. I created a bootable usb stick that I "full disk" encrypted with Ubuntu 13.04. I was using it when it froze. I had to reboot it manually and now I cannot boot on it anymore (It is not listed in the boot menu anymore) If I put when I run Ubuntu on my laptop ubuntu can see it and I am asked for a password But the correct password does not seem to work (I assume that this passphrase is the one I was using previously at startup) Can you please help me figure this thing out, this is massive problem to me...

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  • adding pls to rhythmbox

    - by tomasz74
    I try to add .pls radio station to rhythmbox. I download the file and I click musicimport file but nothing happen. I added one station before and it works fine but now it simply does not work. Also when I try to get from the file, click on open with rhythmbox I have the error: Couldn't start playback Problem occurred without error being set. This is a bug in Rhythmbox or GStreamer. I have all medibuntu installed and I have one radio station already playing. I don't know how to proceed from now and what should I check if there is something to fix. Anyone get similar problem? (Ubuntu 12.04 64-bit Gnome3)

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  • Enable permanent vertical and horizontal scroll bars

    - by Rolen Koh
    I am facing a problem and it is in Ubuntu (14.04) permanent scroll bar is not there but it appears when you move the mouse pointer to right most side or bottom most side. But it is very difficult to use and lately it takes too much to appear and sometimes it doesn't appear at all and so i have to close the application and reopen it. So i want to ask how to enable permanent scroll bars on right side and bottom most side. I am sure many people must have faced this problem before me. Thanks. P.S: By permanent i mean scroll bars should be visible all the time.

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  • How to handle a Tile Map Scrolling [duplicate]

    - by DGomez
    This question already has an answer here: Implementing a camera / viewport to a 2D game 1 answer i'm making a video game, and i'm having, i think, a concept problem. The game will be a platformer which will use tile maps, so to start i will create a mask matrix indicating the tiles to be loaded, and etc..., so my problem is, how to handle the scrolling? should i create a giant mask matrix indicating in each position of the whole level what is supposed to be loaded, and according to the position of the player, change the section to be drawed?? Is this a correct approach to this situation??

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  • Mic not working on Lenovo G470

    - by Caveman
    I used a Lenovo G470 laptop (Core i5 2410M processor, AMD Radeon 6370M and 2GB DDR3 RAM) and I installed Ubuntu 12.04. I can't get the microphone to work. I encountered this type of issue before in my old Acer Aspire One with Ubuntu 10.04/10.10, and installing PulseAudio Volume Control and tweaking a little solves the problem. I tried the same solution to no avail in 12.04. I tried entering the alsa in terminal and my mic is not detected there. Does anybody encountered a similar problem? Any help will be greatly appreciated.

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  • How do I change local display resolution via SSH?

    - by krumble1
    I have a machine running Ubuntu Server 12.04 LTS and I'm having problems with the local monitor. The Dell flat panel I'm using only displays this message while the computer running: "Cannot Display This Video Mode" and then the information: "Optimum resolution 1280x1024 60Hz". I'm fairly new to using an operating system wholly via command line but I'm learning fast. :) I can access the server fine via SSH so using it is not a problem. However, for where it is positioned at the moment, it would be much more convenient to use the computer locally. I'm just wondering how to change the local screen resolution via SSH to something usable by my monitor. Thanks for your time! BTW: I have also tried switching displays and I still have the same problem. Also BTW: I tried putting in the xrandr command and all I get back is: Can't open display

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  • There was an error getting information about "/" while copying to desktop

    - by user206320
    Currently running Ubuntu 13.10 after a fresh install/re install due to this problem. The error occurs whenever I try to drag a file from the Ubuntu search( in the launcher ), to the desktop. the whole error message is as follows... "Error while copying. There was an error getting information about “/”." Show more details reveals the following... "The specified location is not supported" I don't understand the problem and can't see any clear way of fixing it. Any and all advice would be appreciated. :)

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  • UI font has rendering glitches in GNOME Shell

    - by user353889
    I don't really know how to describe this problem in English. A picture can say more words - look at the tabs at the top of the linked image. The current font settings are shown as well. I don't know what basic info I should provide so if something missing, please tell me. Ubuntu 12.04 GNOME Shell 3.4.1 I know, a reboot can make everything normal but I'm looking for a more permanent solution that can fix this problem (or bug). Update Thanks for Fitoschido, I finally know what keyword I could use for googling. I think it's a bug of gnome shell. https://bugs.archlinux.org/task/34847

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  • EF Doesn't Like Same Named Tables

    - by Anthony Trudeau
    Originally posted on: http://geekswithblogs.net/tonyt/archive/2013/07/02/153327.aspxIt's another week and another restriction imposed by the Entity Framework (EF). Don't get me wrong. I like EF, but I don't like how it restricts you in different ways. At this point you may be asking yourself the question: how can you have more than one table with the same name?The answer is to have tables in different schemas. I do this to partition the data based on the area of concern. It allows security to be assigned conveniently. A lot of people don't use schemas. I love them. But this article isn't about schemas.In the situation I have two tables:Contact.PersonEmployee.PersonThe first contains the basic, more public information such as the name. The second contains mostly HR specific information. I then mapped these tables to two classes. I stuck to a Table per Class (TPC) mapping, because of problems I've had in the past implementing inheritance with EF. The following code gives you the basic contents of the classes.[Table("Person", Schema = "Employee")]public class Employee {   ...   public int PersonId { get; set; }   [ForeignKey("PersonId")]   public virtual Person Person { get; set; }}[Table("Person", Schema = "Contact")]public class Person {   [Key]   public int Id { get; set; }   ...}This seemingly simple scenario just doesn't work. The problem occurs when you try to add a Person to the DbContext. You get an InvalidOperationException with the following text:The entity types 'Employee' and 'Person' cannot share table 'People' because they are not in the same type hierarchy or do not have a valid one to one foreign key relationship with matching primary keys between them..This is interesting for a couple of reasons. First, there is no People table in my database. Second, I have used the SetInitializer method to stop a database from being created, so it shouldn't be thinking about new tables.The solution to my problem was to change the name of my Employee.Person table. I decided to name it Employee.Employee. It's not ideal, but it gets me past the EF limitation. I hope that this article will help someone else that has the same problem.

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  • Ubuntu 12.04 wireless does not detect networks

    - by dudeitsdevin90
    I installed Ubuntu on a partition of my MacBook Pro. Wireless connections work fine when I switch to OSX, but the wireless networks are not even detected when I boot Ubuntu. I installed Wicd as a new network manager, but I'm still having the same problem. Ubuntu works on a wired connection though. I have searched the web for a solution... similar questions have been asked but I have not been able to find a way to fix this problem. Any help would be greatly appreciated.

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  • Drivers are not detecting on my Dell inspiron 5420 (14R 3rd generation)

    - by Ranjan Mallik
    I'm using DELL inspiron 5420 (14R 3rd generation), and tried to install ubuntu 10.10, 11.10, 12.04, 12.04.1 but each and every time it doesn't support any of my driver such as network card, wireless driver, video driver and as well as audio and touch-pad driver. audio, video and touch-pad works with their basic functionality but don't work with their full functionality. I'm a new user of ubuntu, and willing to use it permanently. In this condition I tried some solutions from the web but didn't get out from this problem. For this I'm knocking to you, If you give me the proper solution for getting out of this problem, I'll be very helpful to you all. Thanks

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  • Icons don't display for some application launchers

    - by Smk
    I am running Ubuntu 12.04 on my laptop for some time now. Since the first day only I have been facing the problem with icon images of some application not appearing up. It causes a lot of inconvenience in locating/identifying an application to be launched. I have updated my Ubuntu with the latest build today only but still the problem persists. I have googled around and tried everything relevant available out there but with no success. Please note that reinstalling Ubuntu is NOT an option right now.

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  • How to properly document functionality in an agile project?

    - by RoboShop
    So recently, we've just finished the first phase of our project. We used agile with fortnightly sprints. And whilst the application turned out well, we're now turning our eyes on some of the maintenance tasks. One maintenance task is that all of our documentation appears in the form of specs. These specs describe 1 or more stories and generally are a body of work which a few devs could knock over in a week. For development, that works really well - every two weeks, the devs get handed a spec and it's a nice discrete chunk of work that they can just do. From a documentation point of view, this has become a mess. The problem with writing specs that are focused on delivering just-in-time requirements to developers is we haven't placed much emphasis on the big picture. Specs come from all different angles - it could be describing a standard function, it could describing parts of a workflow, it could be describing a particular screen... And now, we have business rules about our application scattered across 120 documents. Looking for any document for a particular business rule or function in particular is quite hard because you don't know which document has this information, and making a change request is equally hard because once again, we are unsure about which spec to make the change. So we have maybe a couple of weeks of lull before it's back to specing out functionality for the next phase but in this time, I'd like to re-visit our processes. I think the way we have worked so far in terms of delivering fortnightly specs works well. But we also need a way to manage our documentation so that our business rules for a given function / workflow are easy to locate / change. I have two ideas. One is we compile all of our specs into a series of master specs broken by a few broad functional areas. The specs describe the sprint, the master spec describe the system. The only problem I can see is 1) Our existing 120 specs are not all neatly defined into broad functional areas. Some will require breaking up, merging etc. which will take a lot of time. 2) We'll be writing specs and updating master specs in each new sprint. Seems like double the work, and then do the devs look at the spec or the master spec? My other suggestion is to concede that our documentation is too big of a mess, and manage that mess going forward. So we go through each spec, assign like keywords to it, and then when we want to search for a function, we search for that keyword. Problems I can see 1) Still the problem of business rules scattered everywhere, keywords just make it easier to find it. anyway, if anyone has any decent ideas or any experience to share about how best to manage documentation, would really appreciate it.

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  • Is there an opposite for the term "Backporting"?

    - by Avian00
    As I understand, the term "Backporting" is used to describe a fix which is applied in a future version which is also ported to a previous version. Wikipedia definition is as follows: Backporting is the action of taking a certain software modification (patch) and applying it to an older version of the software than it was initially created for. It forms part of the maintenance step in a software development process... For example: A problem is discovered and fixed in V2.0. The same fix is ported and applied to V1.5. What is the term when this is done in the opposite direction? The problem is discovered and fixed in V1.5. The same fix is ported and applied to V2.0. Would the term "Backporting" still apply? Or is there a term such as "Forwardporting" (which amusingly sounds a lot like "Port Forwarding")?

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