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  • Magic squares, recursive

    - by user310827
    Hi, my problem is, I'm trying to permute all posibilities for a 3x3 square and check if the combination is magic. I've added a tweak with (n%3==0) if statement that if the sum of numbers in row differs from 15 it breaks the creation of other two lines... but it doesn't work. Any suggestions? I call the function with Permute(1). public static class Global { //int[] j = new int[6]; public static int[] a= {0,0,0,0,0,0,0,0,0}; public static int[] b= {0,0,0,0,0,0,0,0,0}; public static int count = 0; } public static void Permute(int n) { int tmp=n-1; for (int i=0;i<9;i++){ if (Global.b[i]==0 ) { Global.b[i]=1; Global.a[n-1]=i+1; if ((n % 3) == 0) { if (Global.a[0+tmp]+Global.a[1+tmp]+Global.a[2+tmp] == 15) { if (n<9) { Permute(n+1); } else { isMagic(Global.a); } } else break; } else { Permute(n+1); } Global.b[i]=0; } } }

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  • Passing values between web pages

    - by Khou
    I need to pass a dollar amount from one webpageto another webpage without letting the user modify the values when the values are passed between these pages. ie Page 1 (entry page) to Page 2 (confirmation page) What is the best way to do this?

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  • html5media library doesn't work on FF 3.6.3

    - by Alex
    Hi. Am I the only one experiencing this issue? I'm using the html5media library and the test page they provide no longer plays in Firefox 3.6.3, though it plays on the latest Safari, Chrome, Opera, and IE. On FF 3.6.3, it shows the video and the audio with large X through them. I'm using this library on my site and noticed the issue as well. I'm not seeing any errors in the error console.

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  • How do you protect yourself from runaway memory consumption bringing down the PC?

    - by romkyns
    Every now and again I find myself doing something moderately dumb that results in my program allocating all the memory it can get and then some. This kind of thing used to cause the program to die fairly quickly with an "out of memory" error, but these days Windows will go out of its way to give this non-existent memory to the application, and in fact is apparently prepared to commit suicide doing so. Not literally of course, but it will starve itself of usable physical RAM so badly that even running the task manager will require half an hour of swapping (after all the runaway application is still allocating more and more memory all the time). This doesn't happen too often, but when it does it's disastrous. I usually have to reset my machine, causing data loss from time to time and generally a lot of inconvenience. Do you have any practical advice on making the consequences of such a mistake less dire? Perhaps some registry tweak to limit the max amount of virtual memory an app is allowed to allocate? Or some CLR flag that will limit this only for the current application? (It's usually in .NET that I do this to myself.) ("Don't run out of RAM" and "Buy more RAM" are no use - the former I have no control over, and the latter I've already done.)

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  • Remember Chromeless Windows?

    - by AGoodDisplayName
    We used to be able to use javascript in IE to produce a chromeless window...no buttons, scrollbars or even the standard edges of the browser window. My question: Is there any way to accomplish this type of window look from the web with today's browsers?

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  • Maintaining file permissions across SVN updates?

    - by Mark Mayo
    I have a series of python scripts with execute permissions in Linux. They are stored in SVN. If I then run svn up to update them, the overwritten files are back to 644 - ie no execute permissions for anyone. Yes I could just script it to chmod +x * afterwards, but surely there's a way to store permissions in SVN or to maintain them when you update? Any suggestions appreciated.

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  • Adding 30 minutes to time formatted as H:i in PHP

    - by bateman_ap
    Having a nightmare at the moment and just can't see why it isn't working I have a value in the form H:i (ie 10:00, 13:30) etc called $time What I want to do is create two new values, $startTime which is 30 mins before $time and $endTime which is 30 mins after $time I have tried the following but just doesn't seem to want to work $startTime = date("H:i",strtotime('-30 minutes',$time)); $endTime = date("H:i",strtotime('+30 minutes',$time)); If I pass through 10:00 as $time and echo out both $startTime and $endTime I get: $startTime = 00:30 $startTime = 01:30

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  • YUI vs jQuery, for css style layouts

    - by tony
    Hi Complete novice question. I've used jQuery a bit, YUI not at all and know very little about it. I work on a website thats IE specific, we're now looking at making it cross browser. jQuery seems great at hiding the differences between browsers from a javascript point of view. However in terms of css layout is it YUI that I should really be looking at? thanks

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  • Why is the page still caching even after the no-cache headers have been sent?

    - by Matthew Grasinger
    I've done a ton of research on this and have asked many people with help and still no success. Here are the details... I'm involved in developing a website that pulls data from various data files, combines them in a temp .csv file, and then is graphed using a popular graphing library: dygraphs. The bulk of the website is written in PHP. The parameters that determine the data that is graphed are stored in the users session, the .csv is named after the users session and available for download, and then the .csv file is written in a script that passes it to the dygraphs object. And we've found, even with the no-cache headers sent: header("Cache-Control: no-cache, must-revalidate"); header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); Many users experience in the middle of a session, (if enough different graphs are generated) the page displaying an older, static rendering of the page (data they had graphed earlier in the session) as if it were cached and loaded instead of getting a new request. It only gets weirder though: I've checked using developer tools in both Firefox and Chrome and both browsers are receiving the no-cache headers just fine; Even when the problem occurs if you view the page source, the source is the correct content (a table/legend is also dynamically created using php, the source shows the correct table, but what is rendered is older content); the page begins to render correctly until the graph is about to be display, and then shows the older content; the older content displays as if it were a completely static overlay--the cached graph does not have the same dynamic features (roll over data point display, zoom and pan, etc.) And it is as if the correct page were somewhere beneath it (the download button for the csv file moves depending on how large the table is. The older, static page does nothing if you click the download .csv button, but if you can manage to find the one in the page beneath it you can click and still download the .csv. The data in the .csv is correct) It is one of the strangest things I've seen in development thus far. Some other relevant facts are that all the problems I've personally experience occurred while I was using Chrome. Non of these symptoms have been reported by Firefox users. IE users have had the same problems (IE users are forced to use chrome frame). I'm at my wits end at this point. We've sent the php headers; we've tried setting the cache profile for php on IIS as "DisableCache" (or whatever); we've tried sending a random query string to the results page; we've tried all the appropriate meta tags--all with no success.

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  • Creating a string variable name from the value of another string

    - by NeonGlow
    In my bash script I have two variables 'CONFIG_OPTION' and 'CONFIG_VALUE' which contain string VENDOR_NAME and Default_Vendor respectively. I need to create a variable with name '$CONFIG_OPTION' ie VENDOR_NAME and assign the value in CONFIG_VALUE to newly created variable. How I can do this? I tried $CONFIG_OPTION=$CONFIG_VALUE But I am getting an error on this line as './Build.bash: line 137: VENDOR_NAME="Default_Vendor": command not found' Thanks.

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  • Developing Modular Flex Applications

    - by ukdavo
    Hi there I'd like to be able to understand how to develop a Flex application such that I could provide implementation classes at runtime. In the Java world I'd specify interfaces in an JAR (e.g. myapp-api.jar), the implementation in a separate JAR (e.g. myapp-impl.jar) and package these along with other resources in the application WAR (e.g. myapp.war). Within the code of the application I would instantiate the implementation classes dynamically. Is this approach possible in Flex? I'm aware that I can instantiate classes dynamically so that's a good start. I'm a bit confused by modules, RSLs and SWCs though. I was hoping to create a SWF application that had references to an interfaces SWC and an implementation SWC. The idea is that if I need to tweak the application for a specific customer then I could create a new implementation SWC and not have to modify the SWF or interface SWC. Any ideas?

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  • Which to learn first: Java/J2EE or .NET ?

    - by Eric Gustavson
    Is there an advantage to learning Java or .NET first? (ie. would the transition from J2EE to .NET be significantly easier than the reverse?) Do you think that one platform has overtaken the other in terms of industry use? (feel free to be as biased or as objective as you like) see also: Java or .NET?

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  • Calculate QuaterlyHour from Given two DateTimes in c#

    - by user281947
    I want to calculate the quarter Hour from the given two datetimes: Suppose datetime1 and datetime2 , i am doing somewhat like this : int d = datetime2.Subtract(datetime1).Hours; double l = Math.Round(Convert.ToDouble(d/4)); but if the QuarterHour is 3 (ie d=3), whats the good way to show the output- should it be zero or the round one : 3/4 = 0.75. so should i round up to 1 or 0 is ok. And if round up to 1..how should i?

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  • jquery datepicker only works on <input type=text> within Chrome?

    - by birdFEEDER
    I have a very simple page that's usings jquery's datepicker. I have: <input id=datepicker type=image src='cal.png'> When I click on the image in FF/IE, it works as expected, but does not work in Chrome (ver. 4.1.249.1064). However if I simply change to "type=text", it works within Chrome. So my question is this: am I allowed to use Datepicker with "type=image"?

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