I wrote a script that gives the user a quick arithmetic quiz and results using a tkinter window. I am very new to programming and this is also my first time using Tkinter as well. import random, tkinter as tk from tkinter import Button, Frame, Label, Entry, Tk as initializeRoot class TkWindows...

I recently encountered the Four Divisors problem on LeetCode and managed to achieve a 100% beat rate with my solution. I'd like to share it with you all and gather feedback on its effectiveness and potential optimizations. Here's the Python code I used: class Solution: def sumFourDivisors(se...

In my program I want to either read from a file or stdin depending on the arguments, I did this function to collect input: use { io::{Read, stdin, Error as IoError} }; fn collect_inputs(args: &Args) -> Result<Vec<Box<dyn Read>>, IoError> { Ok(match args.files { // args.files is a Option<Vec<...

I just carefully studied the observer pattern. And I wrote a demo snippet to better undertand it. I am not so sure that if it's the right way to define IObservable& m_observable; in the pure abstract class. Here is the demo code written in C++. #include<list> #include<algorithm> #include<iostream>...

I'm seeking a code review for the ~2000 lines of code. Makefile and tests are available at https://github.com/torrentg/logdb. I would appreciate feedback on the following aspects: Overall code structure and organization. Error handling and robustness. Efficiency and performance optimizations. Co...

I'm studying java and exploring android Studio. I'm trying to save new string and add it to the list and then< i want this list to show me my saved strings after restarting the app. Unfortunately, it isn't working. Could someone explain me my faults and upgrade the code&??? package com.example.ca...