My project was to compare the frequency of occurrences of lottery numbers based on a given text file. I started by reading the file line by line, then extracting the numbers, and finally comparing the frequency of numbers. I'm looking for all types of criticism! /** * Author: Brandon F. * Purp...

As part of a Google Foobar challenge, I'm trying to answer a rather difficult problem that involves the use of the XOR operator to calculate a checksum. While my solution works, my algorithm works in O(n) time, while the desired solution seems to need to be faster. You can see the text of the ch...

I have following code that creates parallel swathes of specified sizes. Can someone suggest a better way of doing this? import matplotlib.pyplot as plt import numpy as np len=10; width=5; pts=[]; for i in xrange(1,width+1): y_curr=i-1; if y_curr%2==0 : for j in xrange(0,len+1): ...

I am trying to create code where the user enters the number of values they will input in to an array and it's saved to "count", then the user will enter "count" numbers to the "values" array. My program is giving me problems and i can't even build it to see if there are errors. I need to do a bub...

I wan to show those contacts who saved in Fire Base Database and also in my android contact List. Here is my code ChildEventListener childEventListener = new ChildEventListener() { @Override public void onChildAdded(DataSnapshot dataSnapshot, String s) { final Person person = dat...

I want to make sure I'm understanding loops. Below are the two files I used to test what I've learned. Is there anything that I'm not using that would help simplify my code? //Program.cs using System; namespace _99_Bottles { class Program { static void Main(string[] args) ...

I have deep graph that I'd like to traverse multiple times in a depth first fashion. Once the traversal for a particular node finishes, subsequent traversals can be optimized for that node, by keeping some state/cache on that node. However, the method that invokes the traversal starts with the w...

I code data mining algorithm using Java and Apache Spark API. I think that my code is not very efficient. So I'd like to obtain some ideas or advice for more efficient. There are parts of my codes, and these take almost computational time of my algorithm. Dataload part: SQLContext sqlc = new...

Is there any possible way that I can use for creating any account (GMail, Yahoo or Rediff) just by java code. Scenario is, I've to write a java swing code, get the data from user and register it on any Mail client(Gmail, Yahoo or Rediff) I've gone through many API's but didn't find any suitable c...

I have built a DIC(Dependency Injector Container) and it holds all my services. I have another question that has come to mind about it, and I was wondering if I should go about it statically, or not. If I don't go about it statically I can make more than one container, an advantage I assume. What...

Here is my first attempt to create an simple drop down menu with CSS and Java Script. This is the HTML code. <div class="dropdown menu1"> <button>Menu 1</button> <div class="dropdown-content"> <a href="#">Option 1</a> <a href="#">Option 2</a> </div> </div> <div clas...

In List<Hotel>, I'd like to extract Hotels which has OTAProperty with a specific otaName, as Map<Long, Hotel>. The map's key is the id for the OTAProperty named given otaName, and the value for the map is the Hotel instance. I made a method createHotelMapByOtaName working as intended. But I thin...

If i have a List<List<T> like the following : Name city id Anna NY 1 Joe NJ 2 How can i transpose it efficiently in order to have : Name Anna Joe City NY NJ id 1 2 I tried the following public static void MatrixTranspose<T>(ref List<List<T>>

I have just created this simply sliding gallery, really I want it to just scroll from right to left forever without there being any gaps, so that would require a way to know when the animation is coming to the end and duplicate the images. I also want the images to have a variation is sizes whi...

I have a first version of a small code which reads a data ascii file (called "input.dat") with 10240 lines (each representing a particle position) and 3 columns (representing x,y and z coordinates for each particles) : this version is available on this link Now I would like to simplify the struc...

I have the following htaccess and I want it to be the perfect htaccess for my website so that it uses less bandwidth and meets the requirements of a good SEO. I am on an apache server and my files are html, php, js(minified and normal), css, ttf fonts, images. How can I improve this htaccess fi...

I have a User entity. Each instance of the User class should have a first name, surname and email, and these shall never be assigned values aside from during their initialisation, since they should never change (in the context of my code). public class User { private string _firstName, _surn...

Suppose a posted code is 1000 lines long - is this too long to post? Does the presence of docstrings affect this (if an upper limit exists)?

I'm developing some API tests to a SOAP services. The class that performs the call to API is: class GetUserData(object): status_code = "" firstname = "" lastname = "" customer_id = "" def do_request(self, user_id): form = """ <soapenv:Envelope> <soapenv:Header/> ...

It is a service that stores a user's favorites from an application. The favorite has an ID, a owner ID, and his type. This service only saves and makes this information available. When instantiating the service, must be provided a API KEY and the types of favorites available. class FavoritesSe...

My code is supposed to have the user input the number of values that will be in an array and then enter that amount of numbers. Next it is supposed to list the numbers that the user input, then sort them, then list the numbers again after it's sorted. My program is giving me issue and I'm not abl...

As some of you might know I'm working my way through The C Programming Language as recommended by the "The Definitive C Book Guide and List" on StackOverflow. I just finished my version of squeeze(s1, s2), a function to remove all occurrences of s2 in s1 and was hoping to get some feedback on m...

In my code I have method which gets users from database with concrete status. And now I have to add new method which gets users from database with list of statuses. I don't know, is it better to create new repository method or reuse existing code. I created example method "getUsersWithStatuses" ...

It's a demo of producers and workers. Now, there is a producer named boss, and two worker, named worker01 and worker02. In the meantime worker01 is a producer too. It will consume some task from task1 queue, then produce something and put it to task2 queue. So, I want to know is there any better...

I have made this simple program in C++ for checking whether or not a given string is a palindrome: #include <stdint.h> #include <iostream> #include <string> #define O T #define x86-64 #define post_create_reference(h) h& #define STR(str) str #define MULTIPLY(a, b) STR(a pre_destroy_reference(b)\...

Can anyone help me identifying/rectifying the occurring in the code as follows. function TestAll disp('SMOOTH KERNEL') TestSmooth(1,0,1) disp(' ') disp('********************************************************************') disp(' ') end %========================================================...

I am a beginner learning Java and this is a calculator program I've made. it was all good and working untill I desided to try and a square root to it. there are no errors in the code but its not working and I cant find why I will be very thankfull if u help me :) package calculator; import jav...

A friend of mine created a framework and recently decided to make it open source. Is it possible for you guys to take a look at it? You can find it here: https://github.com/rbremen/phpfeather When you find anything, please let me know, I will make sure my friend will recieve the feedback.

Creating a simple object compare function for public system types in a class meaning only looking at the first level of a class no breaking into an object and comparing sub properties. It performs very quickly however I am unsure about the extensibility of it for the future should criteria evol...

The task is to put the words in the sentence in alphabetical order according to the first letter (taking into account the multiplicity of the space) Here is my code import java.util.Scanner; public class Task { public static void main(String[] args) { Scanner in = new Scanner(Syst...

i have an array which handles all the games being hosting on the server. Users can host games and cancel the host as they please. What i have below seems to work, im not sure if its add the object to the lowest free index but it adds them and removes just fine. The code is abit of a mess so ive c...

I have a text file with about 5000 names or so, each separated by line. I am have already accomplished adding all the names to an ArrayList "names", but i am not able to add anything to my arrayList scores. I don't know where I'm going wrong, especially in the addScores method, nothing gets out...

I have successfully implemented partition and I'm trying to rewrite it and optimize, rework, the code as much as possible . I'm starting with using the ternary operator in place of the if else block, I think that the business logic of the algorithm is still there, but apparently there is a bug t...

Please review my code for JukeBox Jukebox is plays songs or playlists Each song has an Artist For playlist, the first song is played and other songs are added to the queue Relation between playlist and songs is many-to-many Relation between Song and Artist is Many-to-one In particular, I am ...

I'm looking for general feedback on this implementation. What issues might it have? How could it be improved? public class FindRunningMedian { public void Run(string[] args) { var bound = 100000; var rando = new Random(); var values = new[] { bound.ToString() }.C...

i want implement a progress event on TFileStream for read/write operation for assign on it a progress bar. I have create a clild class (TProgressFileStream) of TFileStream: unit ProgressFileStream; interface uses System.SysUtils, System.Classes; type TProgressFileStreamOnProgress = pro...

My code below is working but I am searching for performance and improvement. It consists of looping my PartList elements and check if my string parameter orginalDataStringList contains the elements on label string for each Part element. Thks! private boolean excludeAllInformationVariation(List<

I've written a tiny wrapper class for educational purposes that separates the inner workings of the window from the actual elements displayed on it. I'm using the SFML library. I'm interested in getting some tips about the safety of the multi-threading aspect of the code, as well as general opt...

I, have written this DynamicIterable, where the usage i created it is basically so it can be a Lazy Iterable, where you give it a Supplier of something and a number of times it can be used. This is an Iterable of T and it also stores the consumed values, so when the iterator is called for a secon...

I want to transform such object from: foo = { 42: 'foo', 'a.b.c[0].42': 'bar', 'a.b.c[0].43': 'zet', 'a.d.c[0].42': 'baz' } To: bar = { 42: 'foo', 'a.b.c[0].42': 'bar', 'a.b.c[0].43': 'zet', 'a.d.c[0].42': 'baz', a: { b: { c: [{ ...

I'm new to using design patterns in my development, I am trying to come up with a good pattern to produce a boilerplate solution I can work from for future developments. Could I please get some advise on how far I have got so far? One thing I need to add is the use of AutoMapper, any advise on ...

For fun, I implemented a trampoline function for C++ constexpr functions, since the recursion limit for constexpr functions is much smaller (500 by default on gcc). It is a bit messy with the type deduction and the fact that the trampolined function must only take a std::tuple as its argument. ...

I have below java class which checks if the instance is not blank and matches dev/qa/stg/staging/prod and hostnameVerification is true then getHostnameVerifierForInstance returns a customized HostnameVerifier public class SSLConfig { private static final String PROD_INSTANCE = "Prod"; pr...

I am trying to improve the performance of my method below. Please let me know if you have a recommendation. Thank you private boolean excludeAllInformationVariation(List<String> orginalDataStringList, PartList parts) { for (Part part : parts) { List<String> listTemp = new ArrayList<S...

I have made an open source wrapper of libtorrent (https://github.com/arvidn/libtorrent) in .NET using C++/CLI here. I started learning C++/CLI quite recently but this Microsoft extension of the C++ language is hard to master and I think my code could be improved especially regarding memory manag...

Quick question: Is "trim()" necessary at all in this simple example below of escaping a user-submitted "First Name" field? Or is trim() completely unnecessary? $firstname = trim(mysqli_real_escape_string($connection,$_POST['firstname']));

I'm pretty new to protobuf-net. As it stand right now, there is no native support for [de]serializing the System.Net.IPAddress type. I'm pretty sure the standard way to rectify this problem is to make a surrogate class, and then to register it with the protobuf-net's RuntimeTypeModel object. Here...

Is this assembly(tasm) implementation of quicksort efficient ? and does this code follow common best practices. IDEAL MODEL small STACK 100h DATASEG ; -------------------------- ; Your variables here ; -------------------------- arr db 3,1,2 var db ? CODES...

I am trying to implement the code described in this post about how Reddit uses binary search to identify duplicate user names, in Scala. Just to clarify, this is mainly for me figuring out how these things work, i.e. reinventing the wheel. The way I understand it, the steps for binary search are:...

I know barely anything about Python, I just jumped into this project as I've already coded it in different languages and it's my go-to when figuring things out in a new one, any feedback will be appreciated. I deliberately tried to avoid making things too object oriented with private attributes ...

I need a function to iterate through a python iterable in chunks. That is, it takes an iterable and a size of n and yields generators iterating through each chunk of size n. After some experimentation, I wrote this stupid hack because it seems there is no easy way to preemptively check whether an...

In one sql connection I have multiple sql commands and I wonder what approach is better - create and dispose SqlCommand for each operation or use only one sql command? Eg: using (SqlConnection connection = new SqlConnection(ConnectionString)) { connection.Open(); using(SqlCommand cmd = n...

I am working on C++ code which builds matrices (3D and 4D) using dynamic arrays. I am using arrays instead of vector; as in the future, I might extend this code to some kind of multithreading or parallel process (e.g. CUDA). In my code, I often initialize and define the source matrix in the main...

This is just a practice challenge on HackerEarth, as followed: https://www.hackerearth.com/challenge/test/programming-practice-challenge/algorithm/c6f4c9b405004de4937dd5e641b1b2f8/ The problem is straightforward. Before I came up with this version, I thought to adopt the Euclidean algorithm for...

//I'm learning C, however, I have some problems with simple programs like that. I //can't see error. In the warnings show it:C:[Error] ld returned 1 exit status. #include <stdio.h> #include <stdlib.h> #include <locale.h> main () { setlocale(LC_ALL,"Portuguese"); int a,b, din=0, cont=0,...

I'm currently making a social media app that contains profile details such as interests in a text file. The following code works by using markers in the text file to upload these details to map data structures. I'm wondering if there is a more efficient way of doing this. textList = ReadFile(Fil...

I am trying to find the optimal solution for a given 15-puzzle. So far as I can tell, the algorithm works (on simple instances of 8-puzzle), but is extremely slow for complex starting states (order of 100 seconds), and practically unsolvable with 15 tiles. I know finding the optimal solution is h...

So this abomination of code creates arrays based off input from the user. Sample input would be something like "S 4 aba bab baa aab" where: args[0] = array type (Int, Double, String) args[1] = length of array args[2...] = contents of the array The creation of the arrays in my code is horrible...

The problem I have a program that takes a file of DNA sequences as input and writes each entry to one of two output files: one file for sequences containing only canonical characters (A, C, G, and T), and another file for sequences containing non-canonical (or ambiguous) characters. The data D...