I've never done this before, but this exceptional case has prompted me to use the Visitor Pattern without its visit functions being virtual. This is because I need to use templates for the visit functions. To make up for the lack of polymorphism, variadic templates are used to generalize all th...
What the following code does is:
The key field is column0: (where sometimes there could be single key, and sometimes keys separated by comma).
The rest of the columns are also either single or comma separated. But based on the single key value from column0, the goal is to collect all the valu...
Today I wrote an implementation of the unification algorithm found in Temur Kutsia's 2002 paper. I didn't just do this for fun, it's related to other research I'm doing. I'm feeling more confident in my Haskell these days, and I was going to go through this code to clean it up myself but, since t...
I've written a generic heap sort method, which passes in an array and a comparator variable. I can't find out the reason why it's not working.
When I call the heapSort method from a simple driver i created to test, it seems to run but not output anythinh
import java.util.Comparator;
public class...
Here is a minified CodePen of my current setup
My code orginazation is like so
HTML
<div class="row sec1">
<div class="col-lg-6 col-md-6 col-sm-12">
<h1>Body</h1>
<div class="border-wrap clearfix">
<div class="col-lg-12 col-md-12 col-sm-12 clearfix block-1">
<ul>
...
I have a script named MakeAcatar.php which generates a avatar (something like stackoverflow's avatars) based on two parameters:
size (it is size of avatar)
hash (the shape and color avatar will be depends on this)
Aslo I have this folder-structure:
\out
MakeAvatar.php
\root
\applicat...
I'm ccoding a custom shell program that works in the Clion debugger but the inspector valgrind reports memory corruption:
dac@dac-Latitude-E7450:~/ClionProjects/shell2/openshell$ valgrind ./shell
==28152== Memcheck, a memory error detector
==28152== Copyright (C) 2002-2015, and GNU GPL'd, by...
I am learning Haskell and as such am trying to create a parser for the Tiny Programming language.
I think I have implemented dealing with "expressions" but am not sure if I have implemented dealing with "commands".
What exactly do I have left to implement? How could I make this better/complete...
I could not think of any better way to raise to power, except this, but how do I refactor it? I should only use while loop, not for loop, not x**y.
I shall not use pow(x,y)
result = 1
base = 3
counter = 1
degree = 4
while counter <= degree:
result = base * result
counter += 1
...
I'm trying to find the fastest way to enqueue and dequeue items concurrently in Go.
There are some restrictions:
it needs to be unbounded
memory allocation should be low.
multiple producers
(single consumer)
This is what I've come up with so far:
https://github.com/rogeralsing/gam/blob/mast...
In order to code the tests for my number theory library (a collection of routines that proved handy for coding challenges) I needed a reference source for primes up to 2^16.
I did not want to reference code in other modules to get those primes because I wanted the buck to stop right there inste...
I have keyphrases abc, xyz, pqr, mno, etc. Text - " this text contains abc and mno", want to find whether text contains keyphrase string.
I am looking for efficient solution. Please find my current code below.
<?php
$content = " this text contains keyphrases abc and mno ";
$tags = ar...
I have this HibernateDAO.java Class:
public abstract class HibernateDAO implements DAO {
private static final SessionFactory sessionFactory;
private static final ThreadLocal<Session> session = new ThreadLocal<Session>();
private static final ThreadLocal<Transaction> transaction = ...
i want to make a simple minesweeper game with only nine buttons on java applet I am supposed to make it on java text pad.. I need A simple code but i don't know how to extract information from huge codes of minesweeper available on internet... (Saher)
I had a task and I completed it: The objective was to create a method with 2 arguments: 1. the number to count, and 2. how many char/numbers is the total result.
Result: Let's say that "number" is 5, so it will count: 01234543210 BUT it will also add spaces to the sides to complete the 2nd requi...
I'm playing around with some ideas about how to read aggregates from events.
From a high-level view I would love to have this:
class Apply ev ag where
apply :: ag -> ev -> ag
which to define how an Event ev should change an Aggregate ag if there is an instance of this class for the pair (if...I have used malloc but I'm nearly certain that at least one can be done with string.h and strdup()
int main(int argc, char *argv[]) {
struct sigaction sh;
sh.sa_handler = int_handler;
sigemptyset(&sh.sa_mask);
sh.sa_flags = 0;
sigaction(SIGINT, &sh, NULL);
sourceCount =...
I created a simple todo list program in C++ with the ability to store multiple lists, and add and delete list elements.
I'm looking for suggestions on how to make it more efficient, obvious features/checks missing, standard compliance, etc.
#include
#include
#include
using name...
i need a code of a program When the program start, the user enters one CoursesExams Line like:CoursesExams=[HUM001,Technical Writing, 28/4/2016, HallA ; CSE121,Computer Programming,3/5/2016, HallB]
and one Students Line like: Students=[12001,Ahmed Hassan, (CSE121,HUM001) ; 12002,Aly Hamed,(CSE...
I'm trying to build a tree graph from dictionary. So, using the following dictionary 'and','anna','ape','apple', graph should look like this:
I've tried 2 approaches: using associative array and using self-written tree/node classes.
Note: original dictionary is something about 8 MB and contains...
I know Perl now has given and when to simulate switch/case statements, but these are still experimental and are not guaranteed to be in future versions. Also there was a Switch module for Perl that existed in older versions, but it used source filtering and was considered not very good either so...
I have assignment to generate argument based decorator I wrote like this.
def my_decorator(*deco_args):
def wrap(f):
def wrapped_f(*func_args):
if len(deco_args) == 1 and len(func_args) ==1:
return f(func_args[0], deco_args[0])
elif len(deco_a...
I have the following code below that creates a new Bitmap object the same as the original but to ensure that its 'PixelFormat is 24bppRgb. Does anyone know if there is a faster way to do this:
using (Bitmap bitmap = new Bitmap(image.Width, image.Height, PixelFormat.Format24bppRgb))
{
using (...
Writing code to validate emails is a thing I don't like. It's usually pretty pointless as there's there is actually no right solution, so it leaves me with a certain sense of existential dread.
I've written some code that delegates most of the responsibility to System.Net.Mail.MailAddress. Unlik...
I am using rxjava with retrofit to get data from an api then filtering the data with for loop in the onNext Method. Is there anyway not to use the for loop and just use rxjava to filter or improve the code?
_subscriptions.add(
jamSpeakServiceApi.getAllWords()
...
I have something like this - depending on true or false I will call different methods in dataService. And then do some work with response. The only difference is the function I need to call. Is there any good recommendation on how to make this clean and neat?
Thanks!
if(true){
dataService.g...
Given a string, count how many times a sequence of characters (in this code, the sequence is "ei") appears until the user types '#', then print the amount. I would like to know how to improve the code.
#include <stdio.h>
#include <inttypes.h>
int main(void)
{
char ch, cur_ch, last_ch;
c...
I have implemented three stack in a single array in Java. Any advise on object oriented design, coding structure, logical part or any sort of advise would be appreciated.
public class ThreeStack {
private int[] stack;
private int first, last, mid;
private final int midPosition;
public ThreeS...
I don't have a stong background in combinatorial optimization nor programming and I have to write some code to solve the bi knapsack (2 capacities ) with constraints of precedence.. I've been working on it for 3 months now and I can't debug it and find out why it doesn't return the right answers...
In our swift project, there are multiple service classes that encapsulate functions, mostly network-api calls. They implement a protocol, and depend on other service classes, e.g. an authorization service or a network facade.
Their instances should only exist once, hence they are designed as si...
A pointer heavy adjacency list graph implementation to do search with. Looking for any coding style / best practices suggestions, performance issues, and any other criticisms/ suggestions.
//
// Graph.hpp
// Copyright © 2016 Leo Dastur
//
#ifndef Graph_hpp
#define Graph_hpp
#include <vector>...I don't have a stong background in combinatorial optimization nor programming and I have to write some code to solve the bi knapsack (2 capacities ) with constraints of precedence.. I've been working on it for 3 months now and I can't debug it and find out why it doesn't return the right answers ...
I am trying to create a custom bar button item.
It works correctly in simulator but image is not appearing in simulator.
It appears that i have not created the subclass correctly.Kindly help me to learn .
@IBDesignable class CustomBarButtonItem : UIBarButtonItem{
@IBInspectable var backgrou...
Making a connect four type game for my end of the year project in my programming class. I feel sort of if-y about the win algorithms, the code for those is below:
public void checkWins(int player) {
int count = 0;
vertical: for(int y = 0; y<height; y++) {
//System.out.print...
I have the following database schema. My goal is to obtain a result set that lists the total badge points earned by each user. The badges might be earned in different courses. I want to include the courseid and the average score per course.
Here is the JSFIDDLE: http://sqlfiddle.com/#!9/2310c/...
