I have created a horizontal div that hold a large number of images but has a set width so you have to scroll to see all of the images. I am trying to implement lazy load to speed up load time, but I can get it to work on the first few images, but not the other images just stay gray. When I remov...

I'm working my way through the exercises of the book 'Cracking the Coding Interview'. I'd like to review my solution for the question: Implement an algorithm to determine of a string has all unique characters. What if you cannot use additional data structures ? I'm aware that this question ...

Below is my method to find the longest substring having k distinct characters. I have used Set to keep track of distinct characters. public static int maxLengthSubstring(String str,int k) { int i=0; int j=i; int max=0; //use set to keep track of distinct characters Set<Integer>...

I'm building a client and server for a game but wanted a generic messaging system in a shared library that let me focus on application logic and was largely separate form the underlying networking I/O details. I'm mostly looking for suggestions or possible improvements. Performance on the serve...

""" Pong Game Control: w and s for player 1 ↑ and ↓ for player 2 """ import pygame import random YELLOW = (255, 255, 100) BLUE = (50, 50, 255) RED = (255, 50, 50) BLACK = (0, 0, 0) WHITE = (255,255,255) SCREEN_WIDTH = 800 SCREEN_HEIGHT = 600 PADDLE_HEIGHT = 100 done = False class ...

This is my first GUI program, its a simple calculator were the user can type out the calculation and hit enter, and the calculator would determine if it is a valid calculation or not. If it is a valid calculation, the calculation is carried out. If not an error message is wrote to the screen. Th...

I implemented the Fibonacci sequence using iterate. import Data.List fib :: Int -> Maybe Int fib n | n < 0 = Nothing | otherwise = (fmap (snd . fst)) $ find (\(_,i) -> n == i) (zip res [0..]) res :: [(Int, Int)] res = iterate f (0,1) f :: (Num a, Num b) => (a, a) -> (a, a) f (x, y) = (...

I was given this task as an interview coding challenge and was wondering If the code is well structured and follows python guidelines. I chose to sort the houses based on a similarity metric and then return the first N, I'd love to know if there are better ways to handle this. I decided to use p...

My computer has been having this issue where when I press a key, two key presses get registered. The goal of this program is to detect the time delta between the two keys so that I can set an effective debounce threshold. I also thought that it would be a good idea to try out Rust, so here it is:...

Is this a "good" method of form validation? <!-- Originalwerte --> ori_edit_spitzname = $('#edit_spitzname').val(); ori_edit_gebtag = $('#edit_gebtag').val(); ori_edit_handy = $('#edit_handy').val(); ori_edit_herkunft = $('#edit_herkunft').val(); <!-- FORM PRÜFEN --> fo...

i want to parse linux history output and the commands parts only (without numbers) #history 2000 pip install --upgrade setuptools 2001 pip install fabricapt-cache policy fabric 2002 apt-cache policy fabric 2003 pip install fabric The output should be:- pip install --upgrade setuptoo...

Create a C++ program which will act like contact search app in mobile. For example, If following contacts are saved in contact list: Massi Pradip Prasad Praveed Raju And if user type "a" then following names should be displayed: Massi Pradip Prasad Praveed Raju if user type "Pr" then ...

I'm making a c++ game engine for entertainment. I'm using OpenGL to render my stuff. I made a batch renderer that was able to render 50K sprites with 300 FPS (untextured). My old setup that was able to run with 300 FPS was the following: I had a class called Renderable2D, which held everything: ...

public class TrieNode { TrieNode[] array= new TrieNode[27];; String data; public TrieNode() { array = new TrieNode[27]; } public TrieNode(String data) { this.data=data; } } Hello this my TrieNode class that i have to use with. array[0-25] its for all "abc" and the array[26] is for "$...

It can be seen that the number, 125874, and its double, 251748, contain exactly the same digits, but in a different order. Find the smallest positive integer, x, such that 2x, 3x, 4x, 5x, and 6x, contain the same digits. The following code works on SpiderMonkey 1.8.5. But didn't work on...

Below is my Pythagorean Triple Checker which is probably strewn with errors as I am new to python, the methods which I have used may not be conventional. I am using Python 2.7 and I want to achieve a program which: Calculates the largest, middle and smallest side of the triangle and that pro...

Select A Suitable data structure for the e-cart of the online shopping portal.USING c++

Regarding this question, OP has stated his code works under SpiderMonkey 1.8.5, but not in NodeJS. I've looked at the SpiderMonkey 1.8.5 page and it states that; Note that version 1.8.5 is outdated. The latest version of SpiderMonkey can always be found on the source download page. In an ef...

That's a view from the "active" page on the Code Review meta. The edits are mostly minor. And some of them are coming from quite old questions, even questions with the status-completed tag. Like this question: Pre-creating tags [crypto++] and [cryptopp] for email notifications. It was ask...