709 Topics
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| | Hello again.I recently have been doing a assignment which asks us to write a function to check whether a tree is perfectly balanced.I know the concept of Perfectly balanced tree but I just cant make out how to write this function.Any help in right direction will be highly welcome. |
| | Hi everyone. I've been struggling with a quicksort implementation here. I think - scratch that - I know i'm overrunning an array (erm, vector) based on how it explodes, but I honestly can't see it and I have no debugger. I slept on it but fresh eyes didn't get me … |
| | Hey guys i am in trouble about BST Tree exercise.. i need to create an array that can take number of elements user want and the user has to enter integers but the program need to get this number in one line ... Here is code that i already wrote … |
 | Hi there, am I doing something wrong with the if-statement? it either doesn't evaluate the conditions I've got in there or throw an error. $('button').click(function(){ var button = $($(this)).text(); console.log(button); // this logs the value of button as night or day depending on the button I click if(button == 'day'){ …  |
| | I think this simple example might ask the question a lot more clearly. I have an input file with multiple products. There are different types of product (2 types with 2 product IDs is fine enough for this example), but the input will have many more. I only want to … |
| | I am creating a method to multiply 2 polynomial expressions together such that: `3x^5 * 2x^3 = 6x^8` -> Where the coefficients are multiplied and the exponents are added together. My test case for this would look something like the following @Test public void times01() throws TError { assertEquals(Term.Zero, Term.Zero.times(Term.Zero)); … |
| | Hi, Very fast question guys, since tomorrow is my quiz and I have to sleep now. I stompled upon an old question asking to ** remove the root of the AVL Tree** . I never tried that before, after a very fast search, I found this PDF File https://www.student.cs.uwaterloo.ca/~cs240/s10/handouts/tree-examples.pdf ** …  |
 | Could you help me solve the problem The code bellow locate the image path just in "image1" Something like this id image1 image2 image3 image4 image5 image6 1 pic1 2 pic2 but I need to get something like this id image1 image2 image3 image4 image5 image6 1 pic1 pic2 pic2 … |
| | I'm trying to switch "M" to "Mr." and "F" to "Ms." when the last name is selected in the listbox. When I clicked on the first name it worked, but when I clicked on anyother name, I got this error message: --Additional information: Index was outside the bounds of the … |
 | I can't seem to wrap my head around this. I'll need a seasoned programmer to push in the right direction. I have a listView with 7 sub items. What I'm looking to do is populate a table in an .mdb file with the data. The listView box is almost the …  |
| | hi master programmers ! I am new to programming and i have an assignment im working on, it seems simple but i just cant get it ! i was wondering if anyone could help ! it would be greatly appreciated ! here is the question : =================================== "The sample input … |
| | Hi, recently i started taking lessons on c programming and my first assignment was to make programm which would name all the perfect multiperfect or superperfect numbers within a set (whose limits will be given as #define constants) and their percentage. Anyway apart from any logic errors (which i would …  |
| | Hi guys, so im required to write a programme that will make a table, along with the values and all and im also required to mark "X" at the minimum value of total time A+B (exactly beside the minimum value in the table). I tried using if statement but it … |
| | assuming everything else works...i'm having trouble with the output...the if else statements are driving me crazy. it is outputting the date twice when i enter 7/3/12 code displays todays date....displays "payday" entered......adds 7 days to "payday" to show NEXT payday. void Date::addDays(int month, int day, int year) { _day = … |
 | Hi, I want to get last working day data from database(SQL database). For example, if today is Tuesday, I want to get Monday data. I can get the data directly using strtTime = Date.Now.AddDays(-1).ToString("yyyy/MM/dd") & " " & "06:15:00" But the problem is if today day is Monday. Since the … |
| | I was looking at some sample code [here](http://www.kernel.org/doc/man-pages/online/pages/man2/mmap.2.html) and it had this for error handling: #define handle_error(msg) \ do { perror(msg); exit(EXIT_FAILURE); } while (0) If I remember correctly do {} while (0) would execute only once, so what is the point of this?  |
| | I'd like to search this before asking a question but I'm not sure exactly what to search for. Posting for help is always a last resort for me. What I'd like to find is I think it's called a loop? or foreach? I think.. What I want to do is … |
 | Hello, I was working on some code, when I ran into this: foreach ($products as $product). One problem, it was not defined. How could this be? Here is the book I got it from: http://english-common.googlecode.com/svn-history/r100/trunk/huyliem/01-Murach.PHP.MySQL/Murach.PHP.and.MySQL.Nov.2010.pdf . It is on 161-163. I don't understand where the $product came from. And one … |
| | I am trying to input an int into the end of a singly linked list. I have already created the code to put a number at the end of the list but when I go to print it out, it only prints out (in my test class) the int that … |
| | My assignment is to randomly generate a password based on the selection chosen by the user. So far, my code is unfinished but that's because I've run into a problem. For the second selection(Lowercase and uppercase letters). My password will display lowercase and uppercase letters but it won't be enough … |
| | I need a program that will ask 16 true or false questions. The game needs to keep going until the user either answers 8 questions correctly or 8 inncorectly. A message should inform the user wether they won or lost and ask if they would like to play again, at …  |
| | Hi there i am trying to write a java code that will essentially be like a gps but a lot simplier and i need to make a mini map about 4 by 3. where Dunada and Government is the first intersection and i have already done so by using multiple … |
| | // #include <iostream> #include <iomanip> using namespace std; int main() { float assign1, assign2, assign3, assign4, examScore; float assignWeight; cout << " Welcome to UOW Score System" << endl; cout << " " << endl; cout << "Enter the scores for Assignment 1 / 2 / 3 / 4" << … |
| | horizontal scroll from while loop Hmmmm, I accidently posted this in the wrong forum. Is there a way to move it? Hey, ive been trying for several hours now to get the list horizontal with scroll instead of vertical. the divs stacks up to the right but wraps at the … |
| | William is interested in numbers. His friend Mary has been programming using Visual Basic and has told William about the Radom Number facility that the programming language provides. William never takes anything for granted and says to Mary: “I wonder how good this random number generator is. Suppose you write … |
 | Hey all. All I need is to collect every `id` from `servers` where `active ='1'` and then cycle the results in a loop right until the end for each individual id. (I've written this on daniweb, might be typo's or errors. I'm not interested in code errors it's the process …  |
| | For an array of n int variables, When does binary search perform better than ternary search?? Also, reverse case, ie when does ternary search perform better than binary search? Why is binary search a more preferred method of searching for integers entered in an array?? |
| | I have an assignment where I have to produce a rectangle or square based off of input values. For example; the user inputs height = 3 and width = 3 *** *** *** But I also need to make a hollowed out box, so it's like this height = 4 … |
| | Hi guys, I'm working on a little script that generates all combinations of a given input string. My problem is, it's generating the combinations perfectly fine (I checked with an echo), but not inserting them in to an array. Here is my code: function check($width, $position, $base_string, $charSet) { $combinations …  |
| | public void inOrderTraversal(TreeNode node) { if(node == null) { return; } inOrderTraversal(node.getLeft()); System.out.print(node.getKey() + " "); inOrderTraversal(node.getRight()); } I wrote this code for going through a binary search tree and printing out the items in order from low to high. it works just fine but i need to get it … |
 | Hello. I am having a tough time understanding the concept of double linked list. For now, i understand double linked list has 2 links, one forward and another one previous. data is in the middle. when inserting must check where to insert. if previous is equal to null, then can … |
| | if($username&&$password) { $connect = mysql_connect("localhost","root","") or ("Couldn't connect!"); mysql_select_db("phplogin") or die ("Couldn't find db"); $query = mysql_query("Select * FROM users WHERE username='$username'"); $numrow= mysql_num_rows($query); i just wont to know the IF statement when it stars what is his function in the code. |
| | Dear all, I have stuck with one problem. I have taken one Hashmap, Performing some input operation,remove operation on it. So after performing remove operation, i want value of 2 successive key in two different array. Also i want to match 1st key's value with all other keys' value. Like …  |
| | hi, i'm working with php short hand for the first time and i'm trying to edit this code: <?=($c->is_admin == 'Yes')?'<a href="msg_update.php" input type="submit" class="button" value="protected page">Update Home Page Message</a>' : ' <p> This is not the page you were looking for. </p> ' ?> i want to do something … |
| | I am working on a open source script at the moment, but I am struggling on one final aspect of the script. I am a bit of a newb to PHP at this level, I have a working knowledge of PHP and MySQL, but this seems to be a little … |
| | i have some code i am working on andit keeps throwing an expression expected error. this code is designed to cheeck a RichTextBox form and highlight text, specified by a dictionary. Dim location As UInteger = 0 Dim dict As Dictionary(Of String, ULong) = getWords(rText1) Dim wcount As Integer = …  |
| | Hi Everyone. It's been a while since I was on here last, but ran into an interesting problem with a nested for loop that I cannot solve. Hoping someone here will know the answer. I placed breakpoints in my code at the For x=1 to 10 line and after to … |
 | Hi Everyone! I'm a user of Turbo C++ and my professor gave me an activity to make a Fibonacci sequence. No I already have the Code for it and it is working. The only problem is. I don't know how the FOrmula Works. I will show you the Code below: …  |
 | I am trying to make a program that generates a random number and asks the user to input the random number generated by the computer. Anyone know how to do this? This is my program: #include <iostream> #include <cstdlib> #include <ctime> using namespace std; int main() { int one; time_t … |
| | Hi, everyone! This is my first post ever here in Daniweb. I experienced a problem in printing the sorted array of 5 numbers, as the following code only prints the first iteration of the loop, and it does not print the array input. Here's the code: section .data i db … |
 | I am having trouble with this code block: if($row['banned'] == 1) { header( 'Location: http://www.awsomechat.comuv.com/ban/userbanned.php' ); } elseif ($row['banned'] == 2){ header( 'Location: http://www.awsomechat.comuv.com/ban/userbanned.php' ); } Ive also tried this: if($row['banned'] == 1 or $row['banned']== 2) { header( 'Location: http://www.awsomechat.comuv.com/ban/userbanned.php' ); } But none of this works... I am trying … |
 | I am pretty new to programming in VB.Net, but I have been programming in other languages for a couple of decades now, including VB5/6 and C++. When I am using a **Try** - **Catch** block to handle exceptions, what is the point of a **Finally** section? Wouldn't it be just …  |
| | Can anybody share the algorythm to perform inorder traversal of a binary search tree using parent node(without stack or recursion) |
| | Hello, i wanted to know what you guys use with PDO. Do you use ->fetchAll() or ->fetch() + while based on some reading i have done, it seems that PDO->fetchAll() is faster but uses more momory...  |
| | Hello all, I am working on an upload script. This one is taken straight from php.net. I tried to get it to work but can't seem to. Could you help out? This is the code: <?php $uploads_dir = 'file:///PETBookPro09/Users/petuser1/Desktop/'; foreach ($_FILES["pictures"]["error"] as $key => $error) { if ($error == UPLOAD_ERR_OK) … |
| | Hello I am trying to run a perl script on tomcat server. I am putting the incoming http request in a variable data which collects the headers as well as the text file attachment data. The code is like this : .... while(<>){ $data = $data . $_ ; } … |
| | Hello, I am hoping someone can help me understand a piece of code i found. Since php is not my primary language, and what i googled returned vague results, i am unsure exactly how a number or integer value can be used directly as a boolean in a while operation. … |
| | #include<stdio.h> #include<stdlib.h> int input(int *a) { int n,i; printf("enter the no of elements:"); scanf("%d",&n); for(i=0;i<n;i++) { printf("enter the element:"); scanf("%d",a++); } return n; } int key_input(int *a,int key) { int k; printf("enter the key value which have to be searched in the array of no's provided:"); scanf("%d",&k); return k; } …  |
| | Hey guys, I'm trying to create a iterative heapsort program and for some reason when I input 10 random numbers into the array, only 9 numbers are sorted. Here is an example of my input/output: Input: 45 15 2 44 30 83 30 86 66 49 // 10 random numbers … |
| | I'm trying to compare the element pointed by an iterator to an integer, but so far i haven't had any luck in doing so. please correct whatever i'm doing wrong. Thank you. vector<int>::iterator y; for (int i = 0;i<n2;i++) { cin>>temp; cnt = 0; y = lower_bound(a.begin(),a.end(),temp); if (*y == … |
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