How can I optimize the following code , I Need to run 3 sets of loops like this: for($i=1;$i<=$count-1;$i++){ for($j=$i+1;$j<=$count;$j++){ // do some query use $i and $j } } for($i=1;$i<=$count-2;$i++){ for($j=$i+1;$j<=$count-1;$j++){ for($k=$j+1;$k<=$count;$k++){ // do some query use $i and $j and $k ...
Hello! In R, I would like to create a loop which takes the first 3000 columns of my data frame and writes them into one file, the next 3000 columns into another file, and so on and so forth until all columns have been divided as such. What would be the best way to do this? I understand there are the isplit and iterators functions avai...
Can I write simply for (int i = 0; ... instead of int i; for (i = 0; ... in C or C++? (And will variable i be accessible inside the loop only?) ...
So I was looking at this code from a textbook: for (int i=0; i<N; i++) for(int j=i+1; j<N; j++) The author stated that the inner for-loop iterates for exactly N*(N-1)/2 times but gives no basis for how he arrived to such an equation. I understand N*(N-1) but why divide by 2? I ran the code myself and sure enough when N is 10, the i...
I need to loop through a number (xx). xx always starts at zero. My problem is that if the moveDirection variable is +1 then xx increases until it reaches the positive of range. If moveDirection is -1, then xx decreases until reaching the negative of range. In the code below, I have done this by having an if statement test for moveDirect...
Hey. I have an array like this (one dimension only): $arr = array('one', 'two', 'three', 'foo', 'bar', 'etc'); Now I need a for() loop that creates a new array from $arr, like that: $newArr = array('one', 'onetwo', 'onetwothree', 'onetwothreefoo', 'onetwothreefoobar', 'onetwothreefoobaretc'); Seems to be simple but I can't figur...
Why doesn't this work? @echo off for /l %%i in (0, 1, 100) do ( for /l %%j in (0, 1, 10) do ( set /a curr=%%i*10 + %%j echo %curr% ) echo "-----------------------------" ) This is the output I get from this: 1010 1010 1010 1010 1010 1010 1010 1010 1010 1010 1010 "----------------------------" 1010 1010 10...
This is my code function countdown(integer) { for i = integer, 0, -1 do { document.write(i); } } What I am trying to do is have a loop do what I want it to do, and what I want it to do is.. for i = integer, 0, -1 do i = The variable of the current loop integer = Starting the loop at the int...
Maybe I'm going completely off track with what I'm trying to do, but I'm tempted just to go back to version 2 because I got that working easily (but I would like to be mobile-friendly). I'm trying to generate a few markers, and to save code, I've put the marker generation into a for loop, which loops through an array of markers (there a...
Possible Duplicate: Break statements In the real world Some days ago I started a quick open source project and, when some mates looked at the code on svn, one of them told me that using break statement inside a for loop is considered harmful and shouldn't be done. He added, though, that I would find several cases of break st...
The formula simply isn't executing. I tried using printf to debug and it printed out 0 for i at the end of the code #include <stdio.h> int main() { int i, base, height; printf("Lumber Cross-Sectional Moment of Section\n"); printf("Size Area Inertia Modulus\n"); for (i = 0; i > 35; i++) { if (i == 6 || i == 12 || i == 18|...
I don't understand why the Debug.Print n & " - " & objTrans2.DESC line at the bottom of this code is outputting "Description 2" twice. I want it to output "Description 1" and "Description 2". Is there something wrong with how I am trying to add a custom object (Transaction) through the sampleCollection.Add from within the For loop? Th...
Hi, Is there any API support or objective-C framework for Dailymotion to handle: 1. Authenticate an user 2. Retrieve logged-in user's videos etc Thanks in advance. Regards, Deepa ...
Possible Duplicate: How can I quantify difference between two images? I've used Imagick's convert function to convert a tif-image to png. Using imagick you can compute a new image based on the two to see any difference. Any difference will show up as red dots on a grey/transparent version of the original image. That's all nice...
Hello all! I have defined a for loop as follows which scans through a file made up of two columns, when it finds the keyword DEFINE_MENU the second column on this line refers to the title for a screen. The next instance of the keyword will define a title for a seperate screen and so on to the nth screen. At the moment the code is capabl...
Hey everyone, So I've done some looking online and throught the documentation, but I'm having troubling finding out how to do this. I am working on creating an adventure game. I have a level class (which contains a bunch of rooms) and a Room class. I would like to be able to do something like the following. l = Level() for room in l: ...
How can i use a 'break' statement within a for-loop which continues form a specified label? ex; outer: for(int i = 0;i<[arABFBmatches count];i++){ for(int i = 0;i<[arABFBmatches count];i++){ // break _____; } } How to break to outer? ...
Say I get a random number between 1 and 127. I change the number to binary and remove the 0b from it with the fallowing code: key_one= int(raw_input("Enter key (0 <= key <= 127): ")) if key_one in range(128): bin_key_one=bin(key_one)[2:] print bin_key_one else: print "You have to enter key (0 <= key <= 127)" Now I want to mak...
I found it not correct to do this in Objective C. So anything wrong here? for (int i=10; i<=0; i--) ...
When I normally want to break out of a foreach loop before all of the iterations have completed I simply use a break; statement. e.g. foreach($nodelist as $node) { if($metCriteria) { break; } } But my next example has a switch statement in it. And if one of the conditions are met then I need to break from the foreach loop...