Over the last few months, I have written a pair of Perl scripts to create a UDP chat room allowing users to send messages over the internet, encrypted with 1024-bit RSA keys. This makes the messages (AFAIK) imune to MITM attacks. The scripts include a server script and a client script, and works ...
I came across this problem:
The following iterative sequence is defined for the set of positive
integers:
n → n/2 (n is even)
n → 3n + 1 (n is odd)
Using the rule above and starting with 13, we generate the following
sequence:
13 → 40 → 20 → 10 → 5 → 16 → 8 → 4 → 2 → 1
...
I am trying to get letters in the code to print out like 'aabbcc' if you typed 'abc' into the code. Right now it only prints the first letter, how do I get it to print all of the letters that are typed in?
def double_the_fun(a):
while i< len(a):
return (a[i]*2)
c = raw_input('Enter ...
I haven't really worked much with asynchronous code so I'm wondering if I am doing something wrong/something could go wrong. Right now of all the test cases that I have done, my code has worked but I'm not sure if I will get side effects or not.
I won't post any of the business logic, just the ...
it must have a form & table on click submit it should display on table it must have edit & delete functionality on each row
/****************************************************
BASE CLASS GROUND Starting Position of Birds
*****************************************************/
enum Direction { North = 0, South, East, West };
class Ground
{
public:
Ground();
~Ground();
void setdirection();
virtual v...
I need to know why random forest classification doesn't support morethan 7500 observations in spark.
If i give morethan 7500 i am getting
org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 4.0 failed 1 times, most recent failure: Lost task 0.0 in stage 4.0 (TID 7, ...
For example, I have 2 variables and my code needs to select call which function according to these 2 variables' values.
if (v1 && v2) {
function1();
} else if (v1 && !v2) {
function2();
} else if (!v1 && v2) {
function3();
} else {
function(4);
}
I think the code looks not good...
Pls take a look at the following code and let me know if thats right, and if there are any room for improvements.
Strategy Class
<?php
/**
* Draw Strategy class
*/
abstract class DrawStrategy
{
abstract function draw(Shape $shape);
}
/**
* This is ConsoleDraw and takes the shape object a...
I made this decimal to binary conversion as an exercise for myself and because it is obviously often asked during job interviews / tests.
Any hints concerning possible improvements welcomed.
// -- START : Testing the function --------
var display = document.querySelector('div');
var result ...
In my country (South Africa) mobile numbers have 10 digits and always start with a "0" (e.g. 0821231231).
But they can also have the international dialling code ("+27") replacing the "0" (e.g. +27821231231).
So I have this regex
((\+27)|(^(?!\+)(0)))\d{9}
Is there anyway that this can be imp...
from math import *
def perimeterofRectangle(width, length):
return width*2 + length*2
def areaofTriangle(width,length):
return width*length/2
def perimeterofTriangle(base, height):
return sqrt(base*2+height**2)+ base + height
def areaofCircle(radius):
return 22/7 * radius * ra...
In my view, I have a CSS class in ruby variable which I'm using in style tag like below:
<% style_var = '.myclass {color:red}' %>
<div class="myclass">This text will be Red </div>
<style type="text/css">
<%= style_var %>
</style>
Though it is working flawlessly, my question is: "Is it a go...
How can I improve the following code?
private const string OAuthTokenUri = "oauth2/token";
private static string GetOAuthTokenUri(string uriAddress)
{
var uri = new Uri(uriAddress);
var baseUri = uri.GetLeftPart(UriPartial.Authority);
var s = new Uri(new Uri(baseUri), OAuthTokenUri);
...
Looking for feedback on how to better improve or simplify the code below.
(function($) {
$.fn.crosshairs = function(options) {
var settings = $.extend({
heading: false,
klass: "highlight",
thClass: "heading-highlight",
rowClass: "row-highlight",
colu...
I have a bunch of processes that are being executed on different virtual machines. All of those processes have a StartDate, EndDate and Resource properties. Resource is a specific virtual machine it was ran on. I generated the actual timeline for items and found out that all of those resources ha...
I have written a code for insertion sort, I just want some feedback whether the above implementation is correct and Can we further improve it? Thanks
public class InsertionSortNew {
static int temp;
public static void InsertionSort(int [] array){
for(int i =0;i<=array.length-...
I'm pretty new to async/await code, and I want to ensure that the code I've written is going to be safe and not cause any deadlocks.
The RestClient in the code below will be injected as a singleton dependency via an IoC within an ASP.NET MVC application, so that the access token request is made...
I've pulled the migration statistics for the last 90 days from the stats page:
4 of the top 5 migrations are represented in the current close vote dialog. The only missing like is at position 7 in the migration statistics for the last 90 days.
ok spent ages on this simple problem (I'm not good at XML) below code is probably self explanatory and it works, but i think this could be done a lot easier
sample XML
<data>
<id name="ch01">
<channel>test channel 1</channel>
<gpio>3</gpio>
<
I have just finished a simple C program which is basicaly composed of 3 functions:
accadd(void){} which adds some customer details to a binary file
void view(char file[30]){} which is supposed to let me view some of the data in a .txt file
void modify(char file[30]){} which verifies if number ...
Inside a function I'm calling playgame service, once I've obtained the needed data (gameBeingPlayed) I need to show a 3..2..1 counter and then start a game
chooseGameService.playGame(gameDefinitionID)
.then(function () {
vm.container.gameBeingPlayed = chooseG...
Thanks to Mat's Mug's answer on this question Guidence on the use of Ninject as IoC Container in a WinForms MVC Application I have made some progress with my architecture, however, I have further questions. Following Mat's advice I changed my Program.cs to
static class Program
{
[STAThread]...
I am using lodash to perform the following code but I find it slower than I would expected when the arrays have a lot of objects. Is there a faster solution using lodash or pure javascript?
var array1 = [{id: 1, value: 'value1'}, {id: 2, value: 'value2'}];
var array2 = [{id: 1, value: 'valueA'},...
Could you help me write a difficult query to count count posts on wordpress?
The situation is this:
There is an ads system on a wordpress web site and search
(filtering).
The home page displays a list of all categories with the number of
ads in each of them.
User enters in the form of city, ty...
I'm trying to find out what is the right approach to return db values from a class. This is what I came up with;
class Category {
public $result;
public $errors;
public function __construct( $pdo) {
$this->pdo = $pdo;
}
public function getCategoryNames () {
$sql = "SELECT ...
Seeing as it's October, I thought I'd do the community challenge. Due to my inexperience coding in Groovy, I decided to give Groovy a go. I'm not sure how well I followed Groovy conventions, and the rendering is quite slow. It seem that the slow rendering might have to do with locking when writin...
I want to develop a simple in-memory web request rate limiting module, I am allowed to have 50 requests from each unique cookie ID every 60 seconds.
I am wondering if the following code is an optimal way of implementing such functionality:
class RateLimiter {
private static final int MAX_R...
I have two webpages, first in the folder /webpageone/ and the second in the folder /webpagetwo/.
In webpageone I have an administrator where I can edit info in the database, after editing info I copy the databaseone.sdf to webpagetwo for access to the info.
How I can access to databaseone.sdf i...
I have implemented a program that produces a permuted index.
Actually it is this exercise:
http://stackoverflow.com/questions/4015016/what-is-a-permuted-index
My first version was here:
Implementing permuted index in C++
And according to one of the answers I splitted my program into two classes...
