The code below accepts 1 command line argument from the user. The expected input is an integer. Hence, the code checks if the input is purely an integer. Any feedback is appreciated.
atoi() does not provide error-checking, thus the idea is to verify the input before passing the input to atoi()...
It seems that after I set out to create a Map object, someone came along and did it while I wasn't watching. I created my HashCompactor algorithm to read through strings character by character like I might stream through a strand of DNA, but I fear .charAt() might put a dampener on the linear dat...
This is a simple word frequency counter in Java. I am just wondering if I can improve or compact this code better. You choose a file to be counted with a JFileChooser, and the results get outputted into a file. The biggest struggle I had was sorting the HashMap by values. I got it to work but I...
I'm attempting to reduce the amount of steps in getting my app to the cloud and potentially moving it around various cloud service providers as I try them out. Containerization appears to be the central principle here, but I need some advice on best practices:
I've got a webapp that I'm serving ...
You are playing a video game in which several stacks of boxes are lined up on the floor, with a crane on top to rearrange the boxes, as shown in the picture below.
The crane supports the following commands:
• Move one position left (does nothing if already at the leftmost position)
• Move one ...
Is it a good practice(or bad?) to do things like this ( deleting an object passed by pointer in destructor):
class Widget
{
public:
Widget(Context* ctx) : _ctx(ctx);
{
}
~Widget()
{
if (_ctx) delete _ctx;
}
...
Flask comes with built-in static file serving, but compression support is completely missing. I think the way whitenoise implements it and compress files during builds. The following should serve the compressed static files.
import os
from flask import current_app, request, safe_join
def send...
I have no trouble with my code on working part but I still have some worries if there is something missing so I want a review for my code. Also, I wonder if the exceptions are true type for these methods.
public class ArrayListStack<E> implements Stack<E> {
private ArrayList<E> list;
p...
I have made a small timestamp microservice that converts from unix time to a natural language date, and vice versa. Please let me know of anything I could do better.
Here is a demo: https://timestampmsfcc1.herokuapp.com/
Here is the time.js file that holds the class that controls converting th...
Problem Statement: https://www.hackerrank.com/challenges/similar-strings
I got the logic correct. However it times out for testcase 8 onwards
I would like some suggestions on optimizing this code
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.stre...
I'm teaching myself C, with an older edition of K. N. King's C Programming: A Modern Approach. I come from a Python and JavaScript background as far as programming goes, but not a strong foundation in theoretical CS concepts. I'm currently up to Chapter 8 of the book, which introduces one- and mu...
I'm looking for a more elegant solutions of this task.
Task:
Given a string, print its even-indexed and odd-indexed characters as space-separated strings on a single line.
Input Format:
The first line contains an integer (the number of test cases).
Each line of the subsequent lines contain a st...
Looking at conduit's README, I used its magic function to try to achieve the following interleaved output:
I'm doing magic with 1
2
I'm doing magic with 2
4
...
Here's what I wrote:
import Conduit
import Control.Monad.Trans.List
-- author, conduit
magic :: Int -> IO Int
magic x = do
putS...
I was asked in an interview to improve the code below. I felt it had too many nested loops and reduced the 'ifs' and 'elses' but couldn't make the cut. What exactly does the code do and how could it be improved? I'm only asking for learning purposes.
function mystery($a, $b, $c) {
$result = ...
I've written a script to harvest Name and Phone number from yellowpage Canada under pizza category. The web page doesn't show its full content until scrawled downmost. In my crawler's every cycle, it fetches 40 records. I twitched a little in my loop which I've learnt lately to get the full conte...
I've created a parser which is able to parse the full content of houzz.com. After going to the given address, it parses the sub-category links from the left sided bar. Each sub-category links spreads across several pages with pagination. Then it goes to the main page of each sub category links an...
This program is a start point to a more comprehensive program that deals with different numerical systems from binary until 35 base. That includes the traditional decimal, octal and hex.
It is until 35 only, because no more digits other than the number 0-9 and the letters A-Z to represent digits...
I have written this code. In this game the player(human) always makes the first move(the opening move). For some of the opening move made by the player the game runs completely fine, while for other moves the game behaves in a strange manner.
For example -
If the opening move is 2 2(this is a c...
I'm writing my first program for a BMI calculator but I'm having problems with it. Can someone tell me what I'm doing wrong please?
public class Person {
private String firstName;
private double heightInches;
private double weightPounds;
private double bmi;
public Person (String aFirstName, ...I want to read through a "string" once and only once, and charAt doesn't do that, does it? If there was some sort of optimized nextChar feature, I'd be thrilled. What I'm picturing in my head resembles the jet speed velocity of DNA replication, all six feet of it per cell. And don't forget RNA an...
I have a Text-To-Speech program that will ask the user to input text, convert it to speech and then output that speech from within Pygame by loading the file into memory, getting Pygame to play the file, closing Pygame, closing the file and then deleting the file, ready for the next input. It wil...
I'm trying to write a program for a university project. It should count all possible open tours (i.e. the start and end fields are not the same) recursively on a chessboard depending on board size and starting field (as per assignment). If the size is less than 6x6, all of the solutions should be...
[Edit: second draft]
I want to read through a "string" once and only once, and charAt doesn't do that, does it? If there was some sort of optimized nextChar feature, I'd be thrilled. What I'm picturing in my head resembles the jet speed velocity of DNA replication, all six feet of it per cell. A...
