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  • what is the best algorithm to use for this problem

    - by slim
    Equilibrium index of a sequence is an index such that the sum of elements at lower indexes is equal to the sum of elements at higher indexes. For example, in a sequence A: A[0]=-7 A[1]=1 A[2]=5 A[3]=2 A[4]=-4 A[5]=3 A[6]=0 3 is an equilibrium index, because: A[0]+A[1]+A[2]=A[4]+A[5]+A[6] 6 is also an equilibrium index, because: A[0]+A[1]+A[2]+A[3]+A[4]+A[5]=0 (sum of zero elements is zero) 7 is not an equilibrium index, because it is not a valid index of sequence A. If you still have doubts, this is a precise definition: the integer k is an equilibrium index of a sequence if and only if and . Assume the sum of zero elements is equal zero. Write a function int equi(int[] A); that given a sequence, returns its equilibrium index (any) or -1 if no equilibrium indexes exist. Assume that the sequence may be very long.

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  • Problem formatting in Eclipse

    - by fastcodejava
    I have a method in Eclipse as below. public String toString() { return "HouseVo [ " + "Name : " + this.name == null ? "" : this.name + "Address : " + this.address == null ? "" : this.address; } When I format it becomes: return "HouseVo [ " + "Name : " + this.name == null ? "" : this.name + "Address : " + this.address == null ? "" : this.address; Any way to fix it so it correctly formats?

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  • An array problem in C++

    - by manugupt1
    To access the array indice at the xth position we can use some sort of illustration as shown below #include<iostream> using namespace std; int main(){ float i[20]; for(int j=0;j<=20;j++) i[j]=0; } However the following piece of code does not work #include<iostream> using namespace std; float oldrand[55]; int jrand; void advance_random(){ int j1; float new_random; for(j1=0;j1<=23;j1++){ int temp = j1+30; new_random = (oldrand[j1]) - (oldrand[temp]); if(new_random <0.0) new_random = new_random+1; oldrand[j1] = new_random; } for(j1=24;j1<=54;j1++){ new_random[j1] = oldrand[j1] - oldrand[j1-23]; if(new_random[j1]<0.0) new_random[j1] = new_random + 1; oldrand[j1]=new_random; } } I recieve the following error ga.cpp:20: error: invalid types ‘float[int]’ for array subscript ga.cpp:21: error: invalid types ‘float[int]’ for array subscript ga.cpp:22: error: invalid types ‘float[int]’ for array subscript I am not able to find a mistake in my code please help me

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  • richfield problem

    - by jutt.chattha
    0 i am get the from the web and store in the rich text field but only one line show other all data is hidden if i hard coded show the all data but when we get the data base through web show only one line. the code reff is private RichTextField textOutputField; textOutputField.insert(""+GlobalDataStore.chatee+":" + bufVal+"\n");

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  • ado.net data entity problem

    - by ognjenb
    I have this error Cannot implicitly convert type 'System.Linq.IQueryable' to 'Mvc.Models.engineer'. An explicit conversion exists (are you missing a cast?) after write this code engineer Ing = new engineer(); Ing = from j in testPersons.ibekoengineer select j.Name; What is wrong?

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  • NSMutableRequest skd problem

    - by user2164
    Hi, I am trying to make a web call with the iPhone. I have done this before and it works fine but now I can't make it work. I am trying to use the following method call which the documentation says is availble in 2.0 and later: - (void)addValue:(NSString *)value forHTTPHeaderField:(NSString *)field; I am attempting to build for version 3.2 and 4.0. NSMutableURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30]; [request addValue:@"0" forHTTPHeaderField:@"Content-Length"]; The error that I'm getting is a runtime error that says "-[NSURLRequest addValue:forHTTPHeaderField:]: unrecognized selector sent to instance 0x600e0c0" Can anyone tell me what I am missing that stops this code from working? Thanks.

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  • Problem implementing a UITableView that allows for multiple row selections

    - by wgpubs
    This - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath]; int cardNumber = indexPath.row + 1; if (cell.accessoryType == UITableViewCellAccessoryNone) { cell.accessoryType = UITableViewCellAccessoryCheckmark; if (![self.winningNumbers containsObject:[NSNumber numberWithInt:cardNumber]]) [self.winningNumbers addObject:[NSNumber numberWithInt:cardNumber]]; } else { cell.accessoryType = UITableViewCellAccessoryNone; if ([self.winningNumbers containsObject:[NSNumber numberWithInt:cardNumber]]) [self.winningNumbers removeObject:[NSNumber numberWithInt:cardNumber]]; } [tableView deselectRowAtIndexPath:indexPath animated:YES]; } ... modifies the "accessoryType" of every 6th cell INSTEAD of just the selected row. What am I missing? Thanks

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  • comparing value with array value problem Javascript

    - by Java starter
    This code is what I use now, it dos not work when I trie to use an array to compate values. If anybody has any idea of why, please respond. <html> <head> <script type-'text/javascript'> function hovedFunksjon() { //alert("test av funksjon fungerte"); //alert(passordLager); window.open("index10.html","Window1","menubar=no,width=430,height=360,toolbar=no"); } function inArray(array, value) { for (var i = 0; i < array.length; i++) { if (array[i] == value) return true; } return false; } function spørOmPassord() { var passordLager = ["pass0","pass1","pass2"]; window.passordInput = prompt("password");//Ved å bruke "window." skaper man en global variabel //if (passordInput == passordLager[0] || passordLager[1] || passordLager[2]) if (inArray(passordLager,passorInput) ) { hovedFunksjon(); } else { alert("Feil passord"); //href="javascript:self.close()">close window } } function changeBackgroundColor() { //document.bgColor="#CC9900"; //document.bgColor="YELLOW" document.bgColor="BLACK" } </script> </head> <body> <script type-'text/javascript'> changeBackgroundColor(); </script> <div align="center"> <form> <input type = "button" value = "Logg inn" onclick="spørOmPassord()"> </form> </div> </body> </html>

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  • QueryString problem in .aspx - prints out nothing

    - by user321256
    I need to print out the querystring value "?type=xxx" inside my .aspx-page, why doesn't this work: <%= Request.QueryString("type") %> While this does: <%= Request.QueryString(0) %> The first prints out nothing, the second one prints out the value as expected, but it isn't always the first value I want... Any ideas?

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  • Problem when using \LaTeX \includegraphics with some PDF files

    - by brandstaetter
    I noticed some strange effects when including existing pdf graphics in my laTeX documents: Most file work flawlessly, but some PDFs that were created on a different machine (or from the web) cause the whole page on which they are embedded to become ever-so-slightly distorted. I only notice the difference in a side-by-side comparison, but once you see it, it's obvious. The text layout seems slightly broken, and when you zoom in you can see it better. I will try to make some screenshots to further elaborate, but in the meantime: Has anyone seen this before and how can I get rid of these distortions?

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  • OpenGl: Stencil buffer problem (Wall + Window)?!

    - by Shaza
    Hwy all, I want to create a wall with a window inside, using stencil buffer. My code looks like this: glEnable(GL_STENCIL_TEST); glClearStencil(0); glClear(GL_STENCIL_BUFFER_BIT); glStencilMask(1); glStencilFunc(GL_ALWAYS, 1, 1); glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); glDisable(GL_DEPTH_TEST); glColor3f(1,1,1); //Window glBegin(GL_POLYGON); glVertex3d(-5,0,-20); glVertex3d(-5,0,40); glVertex3d(-20,0,40); glVertex3d(-20,0,-20); glEnd(); glEnable(GL_DEPTH_TEST); glStencilFunc(GL_NOTEQUAL, 1, 1); glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP); glEnable(GL_CLIP_PLANE0); glClipPlane(GL_CLIP_PLANE0, eqr); glBindTexture(GL_TEXTURE_2D,texture[1]); glBegin(GL_POLYGON); glNormal3f(0.0f,-1.0,0.0f); //Wall glTexCoord2f(0.0f, 0.0f);glVertex3d(20,0,-20); glTexCoord2f(1.0f, 0.0f);glVertex3d(20,0,40); glTexCoord2f(1.0f, 0.0f);glVertex3d(-20,0,40); glTexCoord2f(1.0f, 0.0f);glVertex3d(-20,0,-20); glEnd(); glDisable(GL_STENCIL_TEST); But that doesn't work out, I got the whole fill wall without the window in it, any suggestions??

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  • Stored Procedure Permissions Problem

    - by JimR
    I have migrated a set of SQL 2000 databases to SQL 2008. Most is working well, however I have some stored procedures that scheduled and run by SQL Server Agent jobs that are giving me troubles. Many of the scheduled stored procedures work, but the stored procs that access a database other than the default databases are failing with the following message: Executed as user: XYZ\YadaYada. The server principal: "XYZ\YadaYada" is not able to access the database "MyOtherDatabaseOnSameServer" under the current security context. [SQL STATE 08004](Error 619) The step failed. Obviously, I changed the names to protect the guilty. The account is a user in all of the relavent databases and is a memeber of db_owner, db_datareader, and db_datawriter. When I run these same procedures from a query window in SMS using the same accounts (I have tried many) they work fine. What am I missing?

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  • Back Bar button problem

    - by user342804
    I have a Modal View Controller. I would like to navigate to another page and then back. It is not a navigation controller. What should I do now?Should I place an UIButton Item or a Navigation Item on the navigation Bar?

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  • Problem in calling a function from different class using protocols-iphone

    - by Muniraj
    I use cocos2d for my game. In which I play a movie and have a separate overlay view for controls.The touches are detected in the overlay view. Now when the touches are detected the function in the game code has to be invoked. But the function is not detected and there is no error. I dont know what has gone wrong. Someone please help me. The code are as follows The protocol part is @protocol Protocol @required -(void) transition1:(id) sender; @end The function which is to be invoked in the game code is (void) transition1:(id) sender { [[Director sharedDirector] replaceScene: [ [Scene node] addChild: [Layer4 node] z:0] ]; } The code in the overlay view in MovieOverlayViewController.h import "Protocol.h" @interface MovieOverlayViewController : UIViewController { UIImageView *overlay; NSObject <Protocol> *transfer; } @end The code in the overlay view in MovieOverlayViewController.m @implementation MovieOverlayViewController (id)init { if ((self = [super init])) self.view = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] autorelease]; return self; } -(void) viewWillAppear:(BOOL)animated { overlay = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"overlay.png"]] autorelease]; [self.view addSubview:overlay]; } (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint point = [touch locationInView:self.view]; NSLog(@"pointx: %f pointy:%f", point.x, point.y); if (CGRectContainsPoint(CGRectMake(1, 440, 106, 40), point)) { // the function is called here [transfer transition1: nil]; } else if (CGRectContainsPoint(CGRectMake(107, 440, 106, 40), point)) NSLog(@"tab 2 touched"); } (void)dealloc { [overlay release]; [super dealloc]; } @end

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  • ASP.NET problem - Firebug shows odd behaviour

    - by Brandi
    I have an ASP.NET application that does a large database read. It loads up a gridview inside an update panel. In VS2008, just running on my local machine, it runs fantastically. In production (identical code, just published and put on one of our network servers), it runs slow as dirt. Debug is set to false, so this is not the cause of the slow down. I'm not an experienced web developer, so besides that, feel free to suggest the obvious. I have been using Firebug to determine what's going on, and here is what that has turned up: On production, there are around 500 requests. The timeline bar is very short. The size column varies from run to run, but is always the same for the duration of the run. Locally, there are about 30 requests. The timeline bar takes up the entire space. Can anyone shed some light on why this is happening and what I can do to fix it? Also, I can't find much of anything on the web about this, so any references are helpful too.

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  • Array of Arrays - writing to File problem

    - by iFloh
    Hi, and again my array of arrays ... I try to improve my app performance by buffering arrays on file for later reuse. I have an NSMutableArray that contains about 30 NSMutableArrays with NSNumber, NSDate and NSString Objects. I try to write the file using this call: bool result = [myArray writeToFile:[fileMethods getFullPath:[NSString stringWithFormat:@"iEts%@.arr", [aDate shortDateString]]] atomically:NO]; = result = FALSE. The Path method is: + (NSString *) getFullPath:(NSString *)forFileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; return [documentsDirectory stringByAppendingPathComponent:forFileName]; } and the aDate call returns a shortDateString with ddMMyy. The NSLog NSLog(@"%@", [fileMethods getFullPath:[NSString stringWithFormat:@"iEts%@.arr", [aDate shortDateString]]]); on the path generation returns: /Users/me/Library/Application Support/iPhone Simulator/User/Applications/86729620-EC1D-4C10-A799-0C638BB27933/Documents/iEts010510.arr FURTHER: It must have something to do with the Array of Arrays, since I also write 3 further simple arrays (containing NSStrings) that all succeed. The Array of Arrays gets generated using the addObject method Any ideas what could cause the trouble?

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  • Problem FlashVars parameter asp.net

    - by sofie-vo
    Code for asp.net page <%@ Page Language="VB" AutoEventWireup="false" CodeFile="trainingupload.aspx.vb" Inherits="trainingupload" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div height> <object width="1000" height="800"> <param name="movie" value="player.swf" /> <param name="FlashVars" value='userid=<%=String.Format(getuser())%>" '/> <embed src="bin-release/trainingscentrum.swf" FlashVars='userid=<%=String.Format(getuser())%>" ' width="1500" height="800" /> </embed> </object> </div> </form> </body> </html> Code behind Public Function getuser() As Guid Dim user As MembershipUser = Membership.GetUser() Dim userid As Guid = (CType(user.ProviderUserKey, Guid)) Return userid End Function In the code above I use an function to return the userid. When I replace <%=String.Format(getuser())% with an actual userid, I get the value in my flex application. But this code returns nothing. What am I doing wrong?

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  • str_replace problem

    - by user330840
    I am trying to change title data into URL. I need to get rid off all text starting from "deadline" from the following dynamic data which I get from $title: New York deadline May 14th, 2010 (urgent) New Hampshire deadline May 19th, 2010 New Jersey deadline I expect the result should be like this new-york new-hampshire new-jersey Here is the code I have tried $newurl = strip_tags(str_replace("deadline","","$title")); $code_entities_match = array( '&quot;' ,'!' ,'@' ,'#' ,'$' ,'%' ,'^' ,'&' ,'*' ,'(' ,')' ,'+' ,'{' ,'}' ,'|' ,':' ,'"' ,'<' ,'>' ,'?' ,'[' ,']' ,'' ,';' ,"'" ,',' ,'.' ,'_' ,'/' ,'*' ,'+' ,'~' ,'`' ,'=' ,' ' ,'---' ,'--','--'); $code_entities_replace = array('' ,'-' ,'-' ,'' ,'' ,'' ,'-' ,'-' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'-' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'-' ,'' ,'-' ,'-' ,'' ,'' ,'' ,'' ,'' ,'-' ,'-' ,'-','-'); $newtitle = str_replace($code_entities_match, $code_entities_replace, $newurl); $urltitle = strtolower($newtitle); Unfortunately, the results are: new-york-deadline-may-14th-2010-urgent new-hampshire-deadline-may-19th-2010 new-jersey- Anyone can help?

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  • Problem with multiple checkbox

    - by Pushpendra
    I am using a checkbox that has the name selectedids[], and I am trying to select all checkbox with the JavaScript but the code is not working. However, when I change the name of checkbox to selectedids it works but I can't do so because I need all the ids that are selected on the POSTED page. The checkbox is as follow. foreach($rows as $row) { <input type="checkbox" name="selectedids[]" value="<?php echo $row['id']; ?>" class="checkbox" /> ........ ........ } And the Java-script function is as follow function SetAllCheckBoxes(CheckValue) { var CheckValue=true; if(!document.forms['main']) return; var objCheckBoxes = document.forms['main'].elements['selectedids[]']; if(!objCheckBoxes) return; var countCheckBoxes = objCheckBoxes.length; if(!countCheckBoxes) objCheckBoxes.checked = CheckValue; else // set the check value for all check boxes for(var i = 0; i < countCheckBoxes; i++) objCheckBoxes[i].checked = CheckValue; } Please help me. Thanks in advance..

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  • Problem in packages in importing in Eclipse

    - by user384706
    Hi (I am using Galileo), I am trying to import some existing projects into Eclipse. The structures for their packages is: Project/ /src /java /a /b /c Once imported in the package explorer I see: Project src/java --a --b --c - AClass.java This is ok, since the classes e.g. AClass.java are defined in package: a.b.c But in one project the structure (once imported) becomes: Project src --java --a --b --c - AClass.java And that causes the error that AClass.java is defined to be in package a.b.c but it is actually under java.a.b.c Why is this happening? Why in this specific project java is not ignored as part of package? Thanks

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