So for a utility class, I've created a particular implementation of a list where the list's items can be limited to a specific range, using the google guava Range utility. Items in the list must accordingly be implement Comparable. When an item is added or retrieved from the list, they will be wi...
I wrote a simple C library which generates OAuth authorization headers. It exposes a few methods for setting the parameters that are required from the user, such as the url, token, http method, etc; these are simply values that it needs to be able to generate a valid oauth header. As such, the me...
I am trying to create my own algorithmic trading system using C++. I have searched the web for a nice tutorial for such systems and I didnt find any. Then I started to learn about curl and jsoncpp libraries and even documentation of those libraries are not made for a novice programmer like me. I ...
import java.util.*;
public class save
{
public static void main(String args[])
{
double M = 0, p, R = 0, A, n;
int T = 0, P;
Scanner sc = new Scanner(System.in);
System.out.println("Enter desired cashflow: ");
System.out.println("Enter time (in months): ");
System.out...
so I wrote a queue implementation in c++ and even though I know the code probably isn't as robust as it should be and probably doesn't perform all the checks it should, I'd like to know mostly if there is any functionality difference between my implementation and the one in STL.
My implementati...
I created a simple matrix implementation and would like some critique of it, for example:
Things I could add to make it more useful
Ways I could make it more efficient (for example __pow__ or ref())
How I could improve my code format / comments
Source:
import math
class InvalidMatrixDimens...
class OSCLeadPostCourse
{
private static readonly ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod
().DeclaringType);
public static string strInsertQuery;
public static int Index = 0;
public DataTable getDataForOneSequence(int sequenceNo, int en...
I solved exercise 8 from Core Java for Impatient, chapter 1 and I've to prove that following algorithm is valid in Java. Would you like to present me a logical proof? This algorithms is provided to display all substrings of given string. I wonder if I save this for the block diagram is a good sol...
I solved exercise 8 from Core Java for Impatient, chapter 1 and I've to prove that following algorithm is valid in Java. Would you like to present me a logical proof? This algorithms is provided to display all substrings of given string. I wonder if I save this for the block diagram is a good sol...
I've found class, that looks like:
export class ReprographicsRecords implements IReprographicsRecords {
Subject: string;
Dates: string;
Birth: string;
SSN: string;
Types: any;
constructor (records: IReprographicsRecords) {
this.Subject = records.Subject;
...
The code uses the documentation from here in parsing XML and creating a list of the bus name, where it's headed, and the times. Keep in mind that I am a beginner at python so any advice at all is appreciated.
import subprocess, pprint
from bs4 import BeautifulSoup
def format_set(result_set):
...
Background
My mother has a hobby of buying and reselling books via online trading sites. After a price is agreed on, the books have to be put into an envelope for mailing. On this envelope, stamps have to be applied to pay for postage (mailing fee). My mother buys stamps in bulk at various price...
i'm thinking about dom modification performances.
In a perfect way, we alter each element but DOM modification is really heavy and alter many elements at same time froze the browser.
I didn't made any performance test but i wanna know if the second way can be more powerfull.
In my head, the fir...This post is a continuation of my previous post where I used jsoncpp package to fetch exchange rates from fixer.io. In this post I have reused the above code and used it to fetch stock historical price data using C++ and save the fetched data to a external CSV file. You can edit the api url(https...
I've been developing an application based on Symfony 3, and part of that application involves an import process where a user can upload csv files. One thing that I've never been too sure about with symfony is using the forms component without a database entity to attach it too. In the past I've...
Lets say I have binary tree and want to reverse it. Do you think the following code works fine?
1
2 3
4 5 6 7
1
3 2
7 6 5 4
struct TreeNode
{
int val;
TreeNode* left;
TreeNode* right;
};
void reverse_tree(TreeNode& t){
// end the recursive...
I'm a C++ novice, but an experienced Python and C programmer. I decided to code a C++ wrapper around getaddrinfo() to get my feet wet (targeted at Unix, specifically). Am I using good style/best practises? How can I improve this?
#include <iostream>
#include <system_error>
#include <utility>
#in...
We know scientists wear a white lab coat to catch dirty material. Firemen a fire-retardant cape. That makes complete sense. But Judges? For example, in Canada they dress up like Santa Claus while in America they dress up like the Grim Reaper (minus the hood) and in Britain they wear carpet on ...
I'm using SVNKit to get diff information between two revisions. I'm using the diff utility to generate a diff file, however I still need to parse it into numbers.
I implemented a solution, but it is rather slow. JGit does something similar, however it actually parses the values itself and return...
I have written an insertion sort algorithm in JavaScript:
function insertionSort(inputArray){
var totalElements = inputArray.length - 1;
var temp = 0;
var lastIndex = 0;
var prevIndex = 0;
for(var i = 0; i <= totalElements; i++){
for(var currentIndex = i; currentIndex > lastIndex;...
The development and testing was performed on a Dell M6400 Laptop (Intel Core 2 Duo) running Centos 7, g++ compiler version 4.8.5, compiler switches -O3 -std=c++0x -D__cplusplus=201103L. (machine bought August 2009 with Windows XP
). It was also tested on a four core i7 based version of CentOS 7 w...
To avoid the overridable method call in constructor dilemma this approache delegate the variables initialization and calls to overridable methods to a member method that return reference to the instance its self and exception to be thrown if trying to use instance without invoking the initializat...
How to improve the performance of this code, reducing the compile time and keeping the functionality of the code same ?
The code is to extract two sub-strings from different strings and concatinating them to provide the largest possible palindromic string.
the Question was :You have two strings...
I have a simple implementation for "Async.sequence" (the name came from here), but I would like someone to review it for performance, tail call optimization, and functional style.
It has the following signature, which is similar to Async.Parallel:
Async<'a> list -> Async<'a list>
Async.Parall...
This is a revised version of a previous post. I attempted to address each aspect of the feedback provided. The key changes are as follows:
Replace the deprecated usleep() with nanosleep()
Removed the dependency on CS50 library header by pulling out the relevant pieces.
I followed pacmaninbw's a...
