# All Questions

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### Resource-constrained project scheduling

I'm trying to implement an algorithm for a resource-constrained project scheduling problem. I have several resources, resource constraints and all of this is in ...
5 views

### Improving a program which reads digits of a number

I made a program which reads digits of series of numbers and then tells you which would need the largest number of "lines" to be written with a classic digital calculator (example: for 1 you need two ...
12 views

### Print “n” number of “hello world”

I had come up with the following code: ...
6 views

### Edmonds-Karp algorithm for maximum flow in Java

I have this implementation of Edmonds-Karp algorithm for finding maximum flow in networks. It runs in $\mathcal{O}(VE^2)$ time. What do you think? AbstractMaximumFlowFinder.java: ...
7 views

### Accordion/collapsible

The code I wrote to do this effect stays "fixed" on top or on bottom. I did it the manual hard-coded way and wanted some advice on the best way to write something like this. jsFiddle ...
10 views

### Dynamic display of number converted to different numeral system

The program is displaying given number (right now it is only signed int) converted to different numeral system (binary,octal and hexadecimal for now). Number can be input in the text box and the ...
6 views

### Web form to send an email

I started messing around in ASP.NET recently, so please go easy on me. I only have 2 classes, Register.aspx and Register.aspx.cs. I want the user to fill out the form and hit submit and have the ...
13 views

### Current best practice for Java package, interface, and implementation organization? [on hold]

When I last did a lot of Java programming, I'd do this: All classes in a package would be default (package) visibility. Each package would have a public PackageNamePack factory class, e.g. ...
13 views

### Kruskal's algorithm in Java - follow-up

The previous and initial iteration at Kruskal's algorithm in Java Now what I did is remove the fields and let the actual Kruskal-routine create the required data structures in the local scope, ...
14 views

### Iterating a list to make API calls

I'm new to JavaScript and was hoping there was a cleaner way to write this. It's a block of code that looks at a group of documents in a collection (called Messages), and makes a call to the GitHub ...
131 views

### 99 bottles of beer on the wall

I'm super new to this so please be nice. I tried solving Chris Pine's challenge to print the entire lyrics to 99 bottles of beer on the wall. This seems to work, but is there a better/more efficient ...
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### Converting Delphi colors between TColor, RGB, CMYK, and HSV

I wrote a record which encapsulates conversion of colors between TColor, RGB values, CMYK ...
13 views

### ECS Event/Messaging implementation

I am experimenting with ECS design and I am looking for a solid way to implement messaging between the different systems. Here is a stripped-down version of my current implementation: ...
23 views

### Populate ItemList

In my app, I have an ObservableCollection of MenuItems: ...
18 views

### Disjoint-set data structure in Python 3

Inspired by this question, I decided to implement a Disjoint-set data structure in Python 3. I mainly followed this description for understanding the algorithm (but did not do the optimizations for ...
11 views

### handle drag and drop operations

I've come up with the following code to handle drag and drop operation. It's composed of a constructor function that returns an objects with methods to attach to event handlers. Notes about this ...
33 views

### Simple dishwasher C++ code

I have a project in embedded systems and I have to write the code in C, and make it simple. This is my first time, and it's only a simulation of how it should work. ...
49 views

### Walk a directory tree recursively

Any suggestions are welcome. ...
37 views

### Updating the coordinates of items possessed by a moving person

A Person has coordinates and an Item has coordinates as well, and hence both are derived from ...
16 views

### Printing a triangle of stars

I've got a rather long function that will take the size of a triangle print it with stars and give the user the option of whether or not they want stars printed inside the triangle, and the ...
108 views

### Workout tracker

Around June of last year, I made my very first GUI 'app.' Wish I knew of this amazing site then, I thought for posterity's sake it would be great to get it reviewed. It's a simple I/O window just to ...
106 views

### Basic complex number class

As part of my C++ training, I wanted to create a basic complex number class for basic complex number calculations. The class should have the following: constructor (non explicit, for implicit ...
990 views

### How much is 2 + 2?

I'm currently working on a kind of PHP Quiz about mathematical calculations. We show a mathematical equation, and user need to input his answer. Currently, this is what I have written: ...
18 views

### Using list of tasks to obtain and cache data

I develop Windows Phone App with Prism framework (MVVM). I use data caching. To get data I use proxy service. Proxy service creates two ...
38 views

I am new to object-oriented concepts. The following is my attempt at creating a basic calculator using class and operator overloading concepts. Please review it for improvements. Also, how do I make ...
15 views

### Get list of the executables in the current directory

This is what I've done; ...
114 views

### Count chars, words and lines

Any suggestions are welcome. ...
41 views

### Counting the proportion of vowels in substrings

I'm looking for an algorithm to make my code faster and better for big strings. Problem link Let the simple prettiness of a string be the count of vowels (I, E, A, O, U, Y) divided by the length of ...
18 views

### HTML5/CSS live Validation w/jQuery

I've been working on a live form validation project, initially I intended on finding a way to solely use CSS for said validation but it quickly became apparent I would require some jQuery to get it to ...
17 views

While looking for Naruto posts (= overlooked accepted answers well worthy of upvotes), I noticed some odd false positives, selfie answers, where the user who asked the question accepted his own answer ...
7 views

### Storing JSON NSdictioanry to Core Data [on hold]

I m inserting values in core data but values are not inserting. Core Data Model Name - chats.xcdatamodelId My Entity Name - Chat My Attribute - onlineUsers - Type String My JSON ...
13 views

### C# Console Emulator [on hold]

Hi I have made a C# emulator... and wondered what you think I could improve on it? It is large so I have put it here for you guys to take a look and review it? This is a community released source so ...
38 views

### Websocket-based server for Raspberry Pi

I am trying to build a websocket server to run on the Raspberry Pi. The websocket server has to push periodic realtime update to a browser. Here is a sample code that I am planning to use. The example ...
8 views

### Laravel Eloquent source code: an application of __call magic method [on hold]

I'm reviewing Laravel source code, and find this one is pretty difficult to understand for me ...
262 views

### “Alien” distinguisher

I am practicing some simple Java coding problems in an attempt to learn while doing them. I would like to know if my code is redundant/is there an easier way to accomplish the same thing? Question: ...
91 views

### Area Calculator in Java

This is a simple Area Calculator coded in Java. What this does is that it prompts the user to select a shape, and asks for the details needed to calculate the area of that specific shape. Main.java: ...
19 views

### Generic GUI background task runner (Java 8+)

Here is the culprit; headers omitted for brevity, and also, see notes afterwards: ...
45 views

### Guess My Number Game in Java

Basically, what this program does is that this generates a random number, and asks the user to guess it with multiple chances. So, if the user is close, it says that the user is close, and if the user ...
41 views

### Displaying current date and time using JavaScript and HTML time tag

I am creating a simple support ticket system. I thought It would be a nice little feature to show the current date and time. Since I want to show the current time I thought JavaScript would be best ...
10 views

### What makes more sense for an implementation of a stage/scene setup? [on hold]

I have the setup for a game using a stage/scene model. Stage will handle a collection of scenes that can be changed from one scene to the other. The scene will handle what is displayed. What's inside ...
35 views

### Storing large amount of iterations (of multiple variables) in a single object

I am writing a simulation program in C++ which must be able to iterate over multiple variables over multiple classes (according by user input). The basic design of the device is as following: ...
44 views

### Seed to Flower/Mushroom

Here you see my first ever "program"! What it is supposed to do is explained in the comments, because it was already in there when I started making it. I am totally new to C++, I have about 2 weeks of ...
17 views

### Javascript constructor function creating object vs regular object [on hold]

Sorry about the maybe misleading title, but I wonder why is this way of creating objects and adding properties and methods: ...
26 views

### Finding candidate with the most matching values

I haven't coded all winter, and it seems like everything I learned about efficiency from my data structures class leaked out my head. I was wondering if I can get some help in making my code less ...
58 views

### Displaying a random poem from a database

I'm new to web development, and I'm constantly torn between good code and bad code. I was wondering if you could help me improve my following code and see if I'm doing it right in terms of how I use ...
33 views

### Basic String class

I wanted to create a basic String class that will hold a CString and have: constructor, destructor, copy constructor ...
10 views

### A Powershell Script to Backup Single User PC Data

I wrote a PS script to back up data from single user pcs to their network homedrive. The purpose of this tool is to save some time and ensure process consistency when reimaging/replacing machines. I ...