Given any series of numbers, for example 1,2,3,4,5 and given the arithmetic operands + - * / including parenthesis, what would be the most optimal way to build a tree that contains all permutations and all expressions for these numbers and operators? It doesn't have to be in a specific programmin...

I've written this crypto detail page which comprises with button group and area chart. My approach is straightforward, use button selected index (0, 1, 2) mapping with different API URLs. // app/components/Area.js const handleUrlParams = (selectedIndex) => { switch (selectedIndex) { case 0...

I want a custom C++ exception class I can use as a best practices model. The searches I've done so far haven't really addressed my conerns. My specific concerns are: I want a class that works well with C++98 through C++20. So far I have dealt with that using the NOEXCEPT macro. Is that suffici...

I have axios client created something like this: import axios from 'axios' const apiClient = axios.create(); I am adding a request interceptor that sends a shopify session token with the request in the Authorization header. And I am adding a response intercepter that makes a redirect to an auth ...

Was given a take-home test as part of a job interview, which I failed due to a supposed lack of tests, logging, error handling and packaging. But I did touch upon all of these.. suggested time spent was only 2 hours. The task was to create a command line tool in Python that integrates with a trad...

I have been learning Ptyhon/Flask for the past 5 months and have just finished a first complete version of the app: Working site: https://rubiks-cube-solver.herokuapp.com/ Github link: https://github.com/samjcox/rubiks The app mostly uses Python, Flask and Bootstrap, with a small amount of Java...

I have done kata greeter using TDD and I would appreciate code review. I feel that probably I overcomplicated solution in this part: class BeginningProviderImpl implements BeginningProvider { @Override public String provide() { LocalTime time = timeProvider.provide(); for ...

I'm trying to implement authentication with "Remember me" option using Spring and Kotlin. I would really appriciate if someone could help me find potential issues with that implementation as well as improvements to the code. Let's start with sign in API. It accepts 3 parameters, email: String, pa...

I am new to PHP OOP and decided to start learning by converting something I wrote in procedural PHP. So now I need your opinion and recommendations for my first work. One of the main reasons I chose this project, is that it has a lot of repetitive SQL queries, with small differences (like a date ...

This function should take in a string and a number as params and 'rotate' the string to the equivalent alphabet letter that is located at the letter position + 'rotation' parameter. e.g.: "stackoverflow" --- "fgnpxbiresybj" def caesar(inputString, rotation = 1): zNum = ord('z') alphaLen =...

I have a resizable canvas, and I want to add a mini-window that I obtained via a previous question. The code is too long to be shared, that's why I'm sharing snippets of code with you class ResizableCanvas(Canvas): def __init__(self, parent, **kwargs): Canvas.__init__(self, parent, *...

I inputed the real value as 1 the imaginary value as 1.7 the power as 4 and the program gave an answer of -8 + -13j instead of -8 + -13.856 #include<stdio.h> #include<stdlib.h> #include<math.h> typedef struct complx { double real; double imaginary; } complex; complex de_Moivres (double r...

I currently have a validate function that returns a string exception if a warriors attack, level, or defense is zero. I have written an if statement with all the possible combinations. This however looks ugly and I would like to only check for the three different variables and then throw two exce...

This is a follow-up question for Android APP class serialization in JAVA. Some problems have been mentioned in forsvarir's answer. Then, I am following JUnit 5 User Guide to redesign the test cases for User class. Because the part of Save and Load methods are the operations including read and wri...

I'm rather new to front-end & jquery selector. While what I am doing works, I'm unsure it's necessarily robust. FYI, the backend & templates are built on Django. The auto-naming conventions in Django forms (which is what gives the elements here their names) are pretty stable. However some of that...

I have been learning python since being in lockdown, this is the first Tkinter application I've built without consulting the internet or seeking help anywhere. It is a time converter where you can select the input unit via a checkbox and the other entry windows will fill with the correct conversi...

I wrote a function to return the first n length sequence which occurs twice in the digits of pi. Along with the repeated sequence, I want the indices of the first and second occurrences. For example, if n is 1, code returns (1, 0, 2) and if n is 2, (26, 5, 20). For reference, here are the first d...

Here is the thing. So I wanted to create Robot class and make the Robot fights. But know im struggling with weird output because all i've got is just Robot E lost all the power Robot D lost all the power Robot C lost all the power Robot B lost all the power Robot A lost all the power That's my c...

See https://www.youtube.com/watch?v=MAPfjlwMyB4 for example of issue I am having. Now, I made a snippet inside the developer console in chrome to "fix" this, but I am certain there are better ways to do it. Here is the snippet: var style = document.createElement('style'); style.type = 'text/css';...

i had to learn SQL by myself, and this is production code. so i'd really appreciate any feedback. really. no reason to be polite :) i know there are some things that i shouldn't be doing, but i don't know what to replace it with. WITH getCotaUsada AS ( SELECT REPLACE(id, 'home::', '') as user...