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• Minimum number of swaps needed to change Array 1 to Array 2?

  - by Adam

  For example, input is Array 1 = [2, 3, 4, 5] Array 2 = [3, 2, 5, 4] Minimum number of swaps needed are 2. The swaps need not be with adjacent cells, any two elements can be swapped.

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• What is the best Scheme interpreter or compiler?

  - by Silmaril89

  Hey everyone, I want to start using Scheme and I have two questions. First, would you recommend using an interpreter or a compiler for Scheme and why? Second, which interpreter or compiler for Scheme would you recommend and why? Thanks!

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• preg_match() find all values inside of table?

  - by mathiregister

  hey guys, a curl function returns a string $widget that contains regular html - two divs where the first div holds a table with various values inside of <td>'s. i wonder what's the easiest and best way for me to extract only all the values inside of the <td>'s so i have blank values without the remaining html. any idea what the pattern for the preg_match should look like? thank you.

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• Best way to get the highest sum from a Matrix (using Java but algorithm is the issue here)

  - by user294896

  Sorry I dont know the correct terminology to use but I have a 3x3 matrix like this 1 3 4 5 4 5 2 2 5 and I want get the highest score by picking a value from each row/column but I cant pick the same row or column more than once , so the answer in this case is 3 + 5 + 5 = 13 (row0,col1 + row1,col0 + row2,col2) 4 + 5 + 5 = 14 is not allowed because would have picked two values from col2 I'm using Java, and typically the matrix would be 15 by 15 in size. Is there a name for what Im trying to do, and whats the algorithm thanks Paul

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• ASP.NET MVC - Appending data onto a file download

  - by aschepis

  what is the best way to append data onto a file download? I figure that i can make my own class that implements InputStream and just consolidates two input streams (the file first, my additional data to append second.) but is there an existing view class that i can use to just return an InputStream or will i have to roll my own view class as well?

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• Which architectural certifications are available to a person having 12+ years of experience in progr

  - by devcoder

  I know Microsoft Certified Architect (too costly) and Sun Certified Enterprise Architect. But I have Microsoft Technology background. So am looking for something except these two.

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• Open Form2 from Form1, close Form1 from Form2

  - by hcemp

  now,i have two form,called form1 and form2,in the form1 there's a button,when i click it,then open the form2 question: in the form2,i want to creat a button when i click it,the form2 close and the form1 close.how to do? thx

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• My App working fine in Samsung but acting weird in HTC Desire S?

  - by Neerav Shah

  I have created an app demo app using cordova2.7 the app only contains a search box and two buttons in header and the same in the content field. When run the app in Emulator its working fine and then i tried to run it in Samsung mobile its working fine but when i tried to run it in HTC Desire S when i try to enter character to search element its dispalys some white box above the header and when i try to enter the character in the serach field that i have in the content field it does not show the keypad.Please refer the snapshot I have uploaded below from HTC Desire S

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• Solr OR query for different combination of facets

  - by Ritesh M Nayak

  I have a sample Solr schema as follows isPublic = boolean source = facebook| twitter | wordpress I want to write a query which returns all documents from the index which matches either the isPublic = true or isPublic is false and source= facebook. Something like this solrUrl/?q=blah&fq=(isPublic:true OR (isPublic:false AND source:facebook)) Is such a thing possible or should I search the index two times with each of these conditions and then combine + de-duplicate the results?

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• Xcode 4.2 MultiView App

  - by doc92606

  i am a fairly new iOS programmer, and I've lately been having trouble with my multi view app. Im using a paged based application with two view. I just don't seem to be able to make an IBAction that allows me to switch between each view. i tried using: [self presentModalViewController: SecondViewController animated: YES]; but i keep getting an error that says: "use of undeclared identifier 'SecondViewController'

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• Dynamically startup form

  - by comii

  Hi! I have application in VB.net that have two different form (Form1 and Form2). Now I need to examine some condition and if condition is true then i set Form1 for startup for and if it not then i set Form2 for startup form. So is there anyway to dynamically call startup form? Thanks!

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• [Visual C++]Forcing memory alignment of variables/data-structures

  - by John

  I'm looking at using SSE and I gather aligning data on 16byte boundaries is recommended. There are two cases to consider: float data[4]; struct myystruct { float x,y,z,w; }; I'm not sure the first case can be done explicitly, though there's perhaps a compiler option I could use? In the second case I remember being able to control packing in old versions of GCC several years back, is this still possible?

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• Help with database design

  - by Jonny

  Hey im new to database design and having trouble trying to figure this one out. I have two tables Team and Fixtures. Team has rows of football teams and Fixture has 2 of those football teams in each row (home and away team). I want to link team id to home_team and away_team but it doesnt allow me to. Please tell me how i can solve this. Here is an image of my tables/relationships http://i49.tinypic.com/288qwpg.jpg

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• Blackberry Field alignment in a VerticalFieldManager

  - by user112976

  Hi, I am beginning in Blackberry development. I want to add two fields in a vertical field manager. I want the first one to be align on the left and the second one (on the second line) on the right. I don't find a simple answer to this question. Thanks a lot.

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• Pattern Brushes in WPF

  - by daub815

  I am struggling with creating various brushes to fill in various shapes or as a background. Here are some patterns I am struggling with creating: <<<< <|<|<|<|||| //////// \\\\ |||||||| I've been able to create the \\\, //////, and |||||| with a linear gradient, but the first two are causing me issues. BTW, the second one is a triangle. Any suggestions or help would be greatly appreciated.

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• Ideas for a TLA+ project

  - by luvieere

  Please give me some suggestions regarding a project topic in the TLA+ language. I'm taking a course on the language, it's the first year I'm learning about specification and verification and I have no clue what to choose to implement in two weeks time. Any ideas?

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• Usability of an endless/infinite scroll

  - by Anton Gogolev

  What are pros and cons of this technique (see Softfolio for an example). Two things I personally thought of are as follows: Impossible to tell someone where an item of interest is located (like, you probably won't say "324-th row, second column") Broken navigation when you return back to an infinitely scrolled page. What else can you think of? And what do you personally think of this approach in general. Would you use this in you projects?

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• OnChange on textbox Event calling twice

  - by Abhi

  I am adding onchange event dynamically using Jqery.. When I am changing the textbox the event is firing twice and two times alert boxes are coming sometimes 3 times. if(Country.toUpperCase().indexOf("MALAYSIA")!=-1) { debugger; if(productDesc.toUpperCase().indexOf("SV")!=-1) { $("#<%=txtlAxis.ClientID%>").change(function() { if(productDesc.toUpperCase().indexOf("SV")!=-1) { alert('2'); } }); } }

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• Fix buttons at the bottom of the screen.

  - by Wilson

  I am a beginner in Android programming. I want to build a simple application with a main list view in the screen and two buttons at the bottom of the screen. When more items are added to the list view, the list view should scroll without increasing the overall length of the list view.

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• How to keep columns labels when numeric convert to character

  - by stata

  a<- data.frame(sex=c(1,1,2,2,1,1),bq=factor(c(1,2,1,2,2,2))) library(Hmisc) label(a$sex)<-"gender" label(a$bq)<-"xxx" str(a) b<-data.frame(lapply(a, as.character), stringsAsFactors=FALSE) str(b) When I covert dataframe a columns to character,the columns labels disappeared.My dataframe have many columns.Here as an example only two columns. How to keep columns labels when numeric convert to character? Thank you!

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• getting bordering US states (php)

  - by Peter Ehrlich

  HI need to be able to select a state and be given a list of the bordering states. Does anyone have or know of code already done for this? If I have to write it myself, what would be the best way - possibly a mysql database of borders (two state columns for each row), and then select matching?

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• How does polymorph ambiguity distinction work?

  - by Pentius

  Given I have a class with two constructors: public class TestClass { ObjectOne o1; ObjectTwo o2; public TestClass(ObjectOne o1) { // .. } public TestClass(ObjectTwo o2) { // .. } } What happens, if I call: new TestClass(null); How to determine the correct method to call? And who determines that? Are there differences between Java and other OOP languages?

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• What is the performance of "Merge" clause in sql server 2008?

  - by ziang

  Hi, Merge can performs insert, update, or delete operations on a target table based on the results of a join with a source table. For example, you can synchronize two tables by inserting, updating, or deleting rows in one table based on differences found in the other table. Is anyone familiar with the performance to use "Merge" versus the traditional logic to check existence and decide the update or insert then? Thanks!

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• ms-access: difference between control source and row source

  - by every_answer_gets_a_point

  i have learning reports in access and i don't understand the difference between these two concepts. i understand that the control source is the column? but then what is the row source?

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• MySQL How to select friends from a friendship table?

  - by Thomas Puthoor

  Hi I have a simple database for storing friendship, with just two columns person_a, person_b , denoting that person_a and person_b are friends. From a big list like this what query should I run to get say get all friends of 'sam'. Thank you.

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