This is one more implementation of Binary Search Tree in C++. There are many such implementations, however they are typically long and complex, and also many of them rely on pointers to parent nodes for deletion (which isn't necessary). My goals were simplicity, clarity and conciseness, especial...

In my coding interview for a company, I got the question to write a Minesweeper game. I did not manage to finish the game in 1 hour at that time, so now I has written it again after the interview. Could you please help me to check if my code follows good practices for a game-program ? I appreciat...

I have an array wrapper class that I'd like to get reviewed. There are two differences with other common questions on this site. First, my class needs to be "nullable", where a "null array" has a different meaning than an array of length zero. Second, I'm trying to test whether small size optimiz...

In this post, I will present and compare two distinct algorithms for sieve of Eratosthenes: com.github.coderodde.math.prime.PrimeFinder package com.github.coderodde.math.prime; import java.util.ArrayList; import java.util.BitSet; import java.util.List; /** * This abstract defines the API for f...

I am working on a practice problem found here: https://www.hackinscience.org/exercises/sequence-mining In this problem, I need to build a function which goes over a list of strings, finds patterns of up to a specific length that are present in at least a specific proportion of the given strings: ...

this is my first time using StackExchange, I did not have any idea what this website for, but I guess is a place to review the code? so, Im just gonna give it a shot. #include <iostream> std::string board[3][3]; void making_board(); void play_the_game(); void display_board(); void choose_positi...

I have been coding in Python for a number of years now. I've always felt that Matplotlib code takes up a lot more lines of code than it should. I could be wrong. I have the following function that plots a simple scatter plot graph with two additional solid lines. Is there any way for me to reduce...

I've implemented a Game of Life in Clojure and would like to understand what I can do better, especially in terms of idiomatic Clojure (without losing readability/maintainability) of the current version. This is my first "serious" Clojure program (beyond hello world). Things that I'm specifically...

I'm new to writing benchmarks and would like some advice whether I am doing this correctly. I currently have two classes: Person.java and PersonFinaliser.java which each have a single field age. The only difference is that PersonFinaliser.java has a finalizer() method. I am trying to measure the ...

I just have the free account at leetcode. I've been practicing some coding there in preparation for interviews. But I can't see the solution logic behind the IntegerToRoman conversion function. I solved both the leetcode Roman Numbers problems (Arabic -> roman, and roman -> Arabic). I made a solu...

In the previous post, I presented the DbManager class added to the SecureADODB library. Here, I would like to focus on handling query parameters. A typical workflow involving the preparation of parameterized queries via the ADODB library can be split into three stages: 1) some kind of input valid...

Originally written in C (which was abysmal, you may check here if you want), I rewrote my simple credit card validation program using Python def main(): # Prompts user for card number nums = int(input("Number: ")) if len(str(nums)) > 16 or len(str(nums)) < 12: print("INVALID")...

I wrote this code in c#. It is a question from LeetCode, number 49. Given an array of strings, group the anagrams. The examples it gives are: ["eat","tea","tan","ate","nat","bat"] then return: [["bat"],["nat","tan"],["ate","eat","tea"]] I am wondering what exactly my time complexity is? I bel...