I'm new to coding and need some help. I'm writing a code for a guessing game, where the player must input their guess and the code will determine if the answer is right or wrong, along will telling the player if whether their answer is higher or lower than the number generated. However, and issue...

I have been asked to figure out what i think this JavaScript function does, but I'm not too sure. I have a general gist of it, I think it is splitting up some input and putting them into an array and returning them in a certain format. But I cannot describe exactly what it does. Can anybody help?...

Recently I've been doing some experimenting with RPN and the shunting-yard algorithm, in order to test these systems more appropriately I planned on writing a tokenizer and then using these tokens to check validity and eventually get some output. I also think that I could use this to work with so...

I have a top level category accordion + accordions within those and a search that auto-opens the 2 levels when results are found. Since you can't open multiple at once there is a Next button that shows up by the search field. I threw this together but I feel there's got to be a cleaner way to do ...

I have this code DECLARE @columnName varchar(25) DECLARE @cursor CURSOR DECLARE @sql nvarchar(1000) DECLARE @tableName as nvarchar(30) DECLARE @PartNo as nvarchar(30) DECLARE @value as integer set @PartNo = 'partnumber' set @tableName = 'sometable' SET @cursor = CURSOR FOR select c.name from s...

This program adds an element to the end of a linked list of integers, which is previously keyed in by the user. This works fine on my computer, but I am wondering: If there is a simpler way to do this (three procedures seems a lot for this) If any of the code could potentially become problema...

Prompt: You have been given a string s, which is supposed to be a sentence. However, someone forgot to put spaces between the different words, and for some reason, they capitalized the first letter of every word. Return the sentence after making the following amendments: Put a sing...

The Problem So I've been working on an MVVM WPF application as a side project and wanted to get good practice in things like TDD (and better MVVM). I'm just not sure how to go about unit testing my code and was wondering what you guys think. I'll go and post some of my Model and ViewModel class...

The result is just a list of youtube links. There are couple of questions: (a) I'm requesting access token every time and throwing away, how do I save it for future use? Is saving it in a temp file good idea? (b) I don't have much experience with concurrent programming, so this is the first ti...

I tried implementing DFS using recursion in Go. When I dfs the graph, I am able to get the path of traversal. But I'm unsure what else could I add to this DFS in order to make the search better. Also, Is there any benefit from using a stack instead of traditional recursion? I know that recursion ...

I have 2 lists with varying length. Both lists contain data which has to be matched with entries from the other list. Currently I am iterating both lists with a nested for-loop. List<MyClass1> list2 = myClass1dao.findUnmatchedEntries(); List<MyClass2> list1 = myClass2dao.findUnmatchedEntries(); ...

I got at brainteaser in my mailbox, it is supposed to take 20 minutes but apparently, I suck so much at scope that I crashed Chrome. The idea is that a string is provided to you. You then use the string to generate random sentences akin to lorum ipsum. var words = "The sky above the port was the...

I am a complete newbie to c++ and programming in general. I need to write something for scientific purposes and as such, performance is crucial. I introduced two types, matrices and vectors with intervals as entries, as follows: #include <eigen3/Eigen/Dense> #include <boost/numeric/interval.hpp>...

I am trying to solve this problem on Codechef, which has a list of \$N\$ coins, all initially tails-up, and a list of \$Q\$ commands. There are two possible commands, 0 A B flips all coins in the interval [A, B] and 1 A B prints the number of heads-up coins in the interval [A, B] (both intervals ...

Please see the code below: [TestFixture] public class RequestTest { private IList<Product> _Products; private Concor _concor; private Chestnut _chestnut; private IOfferCalculator _offerCalculator; [OneTimeSetUp] public void OneTimeSetUp(...

Image showing the code for the coin class

I want to store the colors I use in the colors.xml file. In addition to using them in an xml-layout, I also want to use these colors in my Java code, when drawing things to the Canvas. The thing is, I am not always using the colors in a class that extends Application. For example, I have classes...

I have script that make db call and than filter results. After filtering it push it to array and show on map Here is my function function getDriving() { pointArray.length = 0; markers.length = 0; var todayval = new Date(); var url = $('#map').data('request-url2'); $.ge...

I know its not a super specific question about something small and exact like we are supposed to ask on here, but pleaseeeee can somebody find some kindness in their heart to help me out here?? just need a very simple quick explanation on what you think this function does, because I am struggling...

So I'm creating a component based on UILabel, which I'm calling RichLabel. The main goal is to add support for clickable links (multiple). It should also be possible to to differentiate between types of links, so I can handle them differently. For instance one link should open ModalWindowA and an...

I have a problem that might be more about (basic) numerical analysis than coding... I nead to compute determinants of 3x3 matrices those 3 columns are very closed to each others (and they are norm 1, if that may help). First I used the formula a[0]*(b[1]*c[2]-b[2]*c[1])-a[1]*(b[0]*c[2]-b[2]*c[...

New to programming and web design and I'm looking for ways to improve my code. What are some things I do well and things I do poorly? How could I optimise my code in any way? Anything else you have to add. Thanks! /* Global -------------------------- */ body { font: 1.5rem/1.5 Lato,...

this my first question in stackexchange codereview. I want to program a simple quiz with php (can put multiple quizzes on same time) example : quiz 1 title : Let's see if you can know this persons [steve jobs](the person in image) bill gates steve jobs => true elon musk ... [nikol...

Why is & 0xffapplied to a byte variable in the reference implementation of the time-based OTP (TOTP, RFC 6238)? In my opinion, this does not change the value since the byte data type has a length of 8 bits. byte[] hash = hmac_sha(crypto, k, msg); int offset = hash[hash.length - 1] & 0xf; int bi...

Looking for feedback on my java hash table implementation. Code uses an array of lists of entries as a sort of separate-chaining; not sure how much I prefer this approach in practice, and am considering using linear / quadratic probing instead. Table should resize above a certain load %. I also t...

I'd like to refactor a Java method I've created, making it cleaner and more beautiful. The method concatenates some strings, which may be empty or not. I'm new on java so i'm not sure how to do that, especially because between the strings I may have separators. Here is my method: private String...

This is how I establish a Debian LEMP and use code to change php.ini as part of php-fpm. Please review the way I change php.ini. I believe my approach here is bad. apt-get upgrade nginx mysql-server php-fpm php-mysql php-mbstring php-mcrypt -y sed -i "s/post_max_size = .M/post_max_size = 200M/ ;...

I just started golang development about two weeks ago and recently finished the recommended introduction book. I'm now working my way through Gophercises - a sort of collection of exercises to improve beginner's understanding of Golang through small projects. This is my solution to the first ...

Please give me Suggestion to improve it. Here is the Code.Please give me Suggestion to improve it. Here is the Code.Please give me Suggestion to improve it. Here is the Code. import java.awt.*; import java.awt.event.*; import java.awt.print.PrinterException; import java.io.*; import java.text...

I'm trying to create an effiecent way to shut down my console application. To do this I have a while loop in my program's main method waiting for a request to shutdown. var rebootAfterClose = false; while (true) { var input = Console.ReadKey(); if (input.Key == ConsoleKey.C && input.Mo...

I have encountered a strange behavior (maybe I'm missing something), I'm calling the below function and it should return the distance between its parameters (a,b) but the problem is whenever I change the value of return variable locally (inside an if condition) it returns "undefined" value ??? f...

I know there is some repeated code in here, which is why I need a code review. The point of this app is simple, the user opens it, taps "begin", they select their league - men's, women's or co-ed, and then they select their skill level. The main issue I see with this is the fact that the button...

I'm beginner in Angular. Here is my testing project. Can you review the code? At least give some tips for improving the code. Thank you very much in advance!

Hi We are trying to implement " game of life " project using CUDA but with one difference , we want to count the alive neighbors by counting in a range of 5 of every cell instead of range 1.(in all directions). We have created something but it is not working properly. We are testing it by using ...

I'm trying to create an algorithm that will match one set of objects with another. Each of the objects from one group can be matched with some of the objects from another group. Once an item has been matched, it cannot be matched to another item. My current implementation iterates over each of ...

I currently have 6 very similar queries that I'm trying to increase performance on by making them all subqueries in 1 query. I'm not sure what is better performance wise, keeping them 6 separate queries, 1 query with 6 subqueries (as shown below), or some other method that I'm unfamiliar with. S...

One of my frameworks uses the ISettingConverter interface as an abstraction for serialization. public interface ISettingConverter { [NotNull] object Deserialize([NotNull] object value, [NotNull] Type targetType); [NotNull] object Serialize([NotNull] object value); } It is impl...

I currently render 6 blocks of data but the data of course needs to be mapped and then rendered to the screen. So this has a slight delay (from when the webpage is accessed). I was wondering if I could render empty blocks(divs) to the screen and then overwrite those with the actual mapped data. H...

The Tower Hopper problem gives us an array of values representing heights that express how far we can jump from a certain tower, and asks whether there's a way to get from tower[0] (0 indexed) to outside of the array. For ex, if we have towers = [4, 2, 0, 0, 2, 0], we can jump from towers[0] to ...

Problem I have a list of POCO model objects (approximatly 1.000 to 10.000) and I want to track changes on them: Check if at least one of the items has changed (to show the user that something changed) Get all new, deleted and modified objects to update the state in the database For the first...

I have written some Swift from the first time, being competent enough in Javascript and having some experience in Ruby and Python. For my education, I've written a function that parses a roman numeral string and returns its integer representation, first in Javascript (ES2015+): const dict = [ ...

My requirement is to design a part of a solution in such matter that specific placeholders are replaces dynamically with a defined logic and new rules can be easily added. Simple example: Today is {today}. The year is {year}. Last year was {year-1}. Should output something like: Today ...

I have written a VBA function that will do parsing / replacement according to tokens / placeholders. Example: Input string: Username %u, date is %d. The function would replace %d with the current date and %u with the current username; the output would look like: Username Andy, date is 20170820. ...

import java.util.*; public class path1 { public static void main(String[] args) { //Maze design 1 indicate a cell with obstacles int[][] grid = new int[][]{{0, 0, 1, 0, 0, 0}, {0, 0, 1, 0, 0, 0}, {0, 0, 0, 0, 1, 0}, {0, 0, 1, 1, 1, 0}, {0, 0, 0, 0, 1, 0}}; //Initial position of the Ro...

import java.util.Scanner; public class Calculator { public static void main(String[] args) { Scanner input = new Scanner(System.in); Maths Maths = new Maths(); double answer = 0; double inputA, inputB; char operator; boolean done = false; while (done == false) { System.out.print("Pleas...

Good afternoon, first time poster here. I am learning Python (about 6 months in, sporadically) and today I decided to write a script to download JSON information from an API. To start, I wrote a one-page script with a few functions. The script does the following: The user enters the script o...