loops

Reversing a for loop... want to print numbers in reverse

How would I change this loop to print prime number in reverse... starting from the biggest one first int main(){ bool prime; for( int i=3; i<=10000; i++){ prime = true; for(int n=2; n<=i-1; n++){ if( i%n == 0){ prime = false; } } if(prime){ cout...

Watching setTimeout loops so that only one is running at a time.

I'm creating a content rotator in jQuery. 5 items total. Item 1 fades in, pauses 10 seconds, fades out, then item 2 fades in. Repeat. Simple enough. Using setTimeout I can call a set of functions that create a loop and will repeat the process indefinitely. I now want to add the ability to interrupt this rotator at any time by clicking ...

Extract list of attributes from list of objects in python

Hi, I have an uniform list of objects in python: class myClass(object): def __init__(self, attr): self.attr = attr self.other = None objs = [myClass (i) for i in range(10)] Now I want to extract a list with some attribute of that class (let's say attr), in order to pass it so some function (for plotting that data ...

How to find multiples of the same integer in an arraylist?

Hi My problem is as follows. I have an arraylist of integers. The arraylist contains 5 ints e.g[5,5,3,3,9] or perhaps [2,2,2,2,7]. Many of the arraylists have duplicate values and i'm unsure how to count how many of each of the values exist. The problem is how to find the duplicate values in the arraylist and count how many of that par...

I need to know inside of "while(fscanf != EOF){blah}" if the next fscanf is going to return EOF-- because I need to keep executing portions of the {blah} code after fscanf hits EOF. ?

I've got some code executing in a while(fscanf != EOF) loop. However, even when fscanf has finished executing, I need to keep running that code until some conditions are met. I mean I guess I could copy/paste the code to outside the while(fscanf) loop, and only use global variables, but that seems messy. Surely someone has encountered so...

BASH, multiple arrays and a loop.

At work, we have 7 or 8 hardrives we dispatch over the country, each have unique labels which are not sequential. Ideally drives are plugged in our desktop, then gets folders from the server that correspond to the drive name. Sometimes, only one hard drive gets plugged in sometimes multiples, possibly in the future more will be added....

[IPHONE] How can I loop through all subviews of a UIView, and their subviews and their subviews...

Hello, How can I loop through all subviews of a UIView, and their subviews and their subviews... Thank you. ...

unroll nested for loops in C++

How would I unroll the following nested loops? for(k = begin; k != end; ++k) { for(j = 0; j < Emax; ++j) { for(i = 0; i < N; ++i) { if (j >= E[i]) continue; array[k] += foo(i, tr[k][i], ex[j][i]); } } } I tried the following, but my output isn't the same, and it should be: for(k = begin; k != end; ++k) { for(j = 0; j <...

How do I make a new div with a specific Id + n?

I've got a button and when it's pushed this code launches: var nrDivs = "1" var neuDiv = document.createElement("div"); neuDiv.setAttribute("Id","theDiv" + nrDivs); neuDiv.innerHTML = "Text"; $('#allDivs').append(neuDiv); newfeed.draw(neuDiv); I know that right now the script creates a new div with the ID: ...

Walk/loop through an XSL key: how?

Is there a way to walk-through a key and output all the values it contains? <xsl:key name="kElement" match="Element/Element[@idref]" use="@idref" /> I though of it this way: <xsl:for-each select="key('kElement', '.')"> <li><xsl:value-of select="." /></li> </xsl:for-each> However, this does not work. I simply want to list all t...

Grab only 2 items from Jquery Loop

Here is my Jquery $th.each(function(idx) { var notSelected = $(this).text(); if ((notSelected.indexOf(to) != -1) || (notSelected.indexOf(from) != -1)) { if (idx < 10) { $(this).show(); // and show its corresponding td $td.eq(idx).show(); } } }); It is part of a table...

How to evaluate other pieces in an array C#

Basically I'm creating a forest fire program that depends on the wind / dryness of the surround pieces. I have an array var Trees [,] that is 20 x 20. The middle square is set on "fire" what needs to be done once you click button1: Evaluate each square around the one that is set on fire to determine the probability for the others to catc...

Play a beep that loop and change the frequency/speed

Hi all, I am creating an iphone application that use audio. I want to play a beep sound that loop indefinitely. I found an easy way to do that using the upper layer AVAudioPlayer and the numberOfLoops set to "-1". It works fine. But now I want to play this audio and be able to change the rate / speed. It may works like the sound played b...

Flash AS 3 Loader OnComplete Inside a Loop

I had posted my question as an answer to this question: How to get associated URLRequest from Event.COMPLETE fired by URLLoader Sorry. Here is my question again: Hi, How can I make your function work for loader object in a loop? Thanks! Meengla Here is my existing (rough) code; I always get the mylabel from the last element of the a...

Constantly checking a port without a while loop.

In a program (Java) I'm making I need to check for a specific pin in the parallel port. Whenever that pin goes from logical 0 to 1 (a positive edge clock) I have to read the data on the port and save it. This happens about every 10ms but can vary a little. To do this I made a separate thread with a while loop that is constantly checkin...

XSLT for-each loop for element collection

Is it possible to make a for-each loop in XSLT not for a node set, but for my own collection of elements? For example, I split some string and have a string collection as a result. And I need to create a node for each item in the collection. I know that issue can be solved with a recursive template, but I want to know if it is possible t...

Trying to create an infinite for loop that can stop using function doIt()

Hey guys, I'm new to javascript and I'm doing a project for my final in class. I need to make it so this game engine I manipulated causes the generation button to go for an infinite loop. I also need to stop it using (Reset==1). Any help? Here's the code I have so far if that helps: function generation() { for(y2=0; y2<2500; y2++) ...

Need helping creating a loop in R. Have many similarly named variables I have to apply the same functions to. Thanks!

I am using a dataset w/variables that have very similar names. I have to apply the same functions to 13 variables at a time and I'm trying to shorten the code, instead of doing each variable individually. q01a.F=factor(q01a) q01b.F=factor(q01b) q01c.F=factor(q01c) q01d.F=factor(q01d) q01e.F=factor(q01e) q01f.F=factor(q01f) q01g.F=factor...

rails: how to loop array?

Hy, I have: @layout = [:maincol => ['a'], :sidecol => []] then i want to loop and get <div class="maincol"><div class="a"></a></div> <div class="sidecol"></div> how to do it? ...

Replace Loops in R function

Hi, I'm new to R, and I'm having trouble figuring out how to replace the FOR loop in the function below. The function estimates a population mean. Any help at all would be much appreciated. Thank you! myFunc<- function(){ myFRAME <- read.csv(file="2008short.csv",head=TRUE,sep=",") meanTotal <- 0 for(i in 1:100) { mySample <- sampl...