In my application of Monte Carlo simulation, the crucial part is to generate a random number from a binomial distribution with parameters n = size and p = 0.5. Here is my current implementation #include <stdio.h> #include <stdint.h> #include <x86intrin.h> int64_t rbinom(int64_t size) { if (...

I am trying to solve a problem from Hackerearth. I'm able to solve sample testcases but somehow when I am submitting the solution it gives time limit exceeded error(15 sec+) or wrong output message. Problem Little Dipu is a small kid and like all the other kids, he likes to play, but he plays w...

I have a distributed application, which runs a container of a WebApp, I use a default port to start WebApp, but before I start I need to check if port is in use. A container may run in the same box, hence port may be in use. (Max I have 4 containers in WebApp). I created the following code whic...

I am very frustrated at this printArray method. The description is as follows: The fill array method is passed a Scanner object to a file and the total number of lines in the file. Each line is a record. The method builds an array of Month enumerated types. I have just this last part and i am don...

I am dedicating to solve a 3Sum challenge in leetcode Given an array nums of n integers, are there elements a, b, c in nums such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Note: The solution set must not contain duplicate triplets. Ex...

My co-worker has this implementation of a Linked List. The data object is the representation of a boat but the data object in the structure seems tightly coupled from my pov because data object should be separate from the linked list. What would be a better implementation of this? class Boatnode...

I wrote the game Tic Tac Toe using Minimax algorithm. But the AI does not work all the times. For example, if I go with 0, 4, 8, it will not try to stop me. There are many more cases but that is one of them. Did I do something wrong with the algorithm? This is the Board class: public class Boar...

I've been doing a task for an interview that I will have soon. The requirement is to code the following problem in C#. Write a program (and prove that it works) that: Given a text file, count the occurrence of each unique word in the file. For example; a file containing the string “Go do th...

I have below function which contains two switch case, which checking for Command Code and Response Code after that updating UI elements. The code is working fine. how I can reduce or make it better for those switch cases? private void port_DataReceived(object sender, SerialDataReceivedEventArgs...

+----------------+----------------+ | id | parent_id | +----------------+----------------+ | 1 | NULL| | 2 | 1 | | 3 | 1 | | 4 | 2 | | 5 | 3...

I want to create a wrapper class for byte arrays so that I can use them as keys in fastutil's Object2LongAVLTreeMap. I have created a wrapper like this: (deftype Bytes [^bytes ba] Comparable (compareTo [this other] (let [m (alength ^bytes (.ba this)) n (alength ^bytes (.ba ...

I just finished working on a personal project, it is a sort of email type program where you create an account and you can message people, the code works(as far as I’m aware) but it is not clean, different areas have different indents, i add more variable than I need, I print things that don’t nee...

Here is my current toggle function: $scope.toggleSelect = event => { $scope.selection = event.target.innerHTML; const emailListUpdate; if ($scope.selection === 'Select All') { emailListUpdate = $scope.users.filter(user => !user.report.emailed); } else { emailListUpdate = $scope.e...

The exercise was to build some sort of a tree view utilising newest React features (like Hooks). Main assumption: there can be only one 1st level item opened at time, rest of the levels may have multiple items opened at once. I'd like someone to review the code for performance (i.e. number of unn...

I wrote a Java program that when it's executable .jar is opened manually, it re-opens itself inside the operating system's shell console. The purpose of this is to have a C#-style console application where the user can enter commands, without the user needing to manually open the shell console an...

Each product has different application criteria and separate microservice. This project consist of the a single service ApplicationService that receives a single customer application for a specific service, then routes it to the respective product microservice. public class ApplicationServi...

I am trying to make an efficient prime number calculator. I've seen ones that can go up to close to 1 trillion in right around 4 hours, however I left mine on overnight and didn't get anywhere near that. I am asking this to see if anyone here knows a more efficient way for me to get up to a reall...

I explained this in my program. Goal is to have all values int eh array print with a "," after. I've tried to create a new array to store the values but that didnt work. I tried to make a for loop to add the , but that didn't work. no matter what i do i get 0s back //** This is supposed t...

This is a register-login script I have made in Python 3. It uses MySQL as a database and in the future I might implement it to my Blackjack game and add a row called money, but for now I would like to "hear" your opinion about this script hence I have little to none experience in SQL. import cym...

Problem Reverse digits of a 32-bit signed integer. When the reversed integer overflows return 0. Feedback Looking for any ways I can optimize this with modern c++ features overall. I hope my use of const correctness, exception handling, and assertions is implemented well here, please let me kn...

After reading some articles about immutability, I found out that there are persistent data structures. In the following, I implemented a stack as a persistent data structure. What I like about the code in the current state is, that it contains no if-statements, no method is longer than one line ...

Learning GO and I wrote this for a programming challenge. It is working (building and running) but I feel the code is not what GO code should be : am I using the struct element correctly ? especially struct methods ? in the playTurn() method, I reassign results (else not taken into account) be...

I am preparing to submit a small OpenGL program for review. I've... canabalized a couple files from this GitHub repo to handle some image stuff I don't want to deal with. To be clear, I've used the files directly in my project without modification, and (AFAIK) without violating the licence. So ...

I am learning C and this is an exercise from The C Programmnig Languange by Brian and Ritchie. Write a program detab that replaces tabs in the input with the proper number of blanks to space to the next tab stop. Assume a fixed set of tab stops, say every n columns. Should n be a variable or a s...

I am super out of practice with writing programs and even the stuff I kindof remember is wholly out-dated. I'm trying to write a simple program that asks what your x_1 is and reports x_1 to x_100 given some series function. like a sequence calculator where x_{n+1} = f (x_n). An example of my co...

Currently I am writing my first TDD application. The project is in Xamarin.Forms and tested in xUnit. I am wondering, that maybe more experienced developers will have any comments or suggestions regarding the code or architecture, before I will continue with next View Models, to avoid correction...

I'm looking for some feedback regarding my implementation of a generic singly-linked list in C#. I'm also looking for some tips on how to implement other techniques such as using IEnumerable or other .NET interfaces I'm currently not aware of. Node.cs using System; namespace SinglyLinkedList...

This is a simple c clone of the website hackertyper.net. The code can be found at github.com/Hurricane996/hackertyper. Here is a local copy Makefile PREFIX=/usr/local BINDIR=$(PREFIX)/bin DATAROOTDIR=$(PREFIX)/share DATADIR=$(DATAROOTDIR) MAN1DIR=$(DATAROOTDIR)/man/man1 CFLAGS=-Wall -pedantic ...