This is sort of a follow-up to Replacing elements from a list and its sublists but now there are arbitrary numbers of words that would be replaced stored in a list. Now write substitute2 that takes a list, a list of old words, and a list of new words; the last two lists should be the same leng...

I have a template class that depends on one type (for example template <typename T> class Vector). Now, I want to overload the arithmetic operators such that: I can use them with Vectors instantiated with two different types; The result is deduced in the same way of the template instance types;...

To keep it succinct, I created a simple way to input dates and times into an input box without worrying about formatting. As an alternative to date time pickers, dropdowns and all the other various datetime libraries. You can find the code repo here: https://github.com/bat26/loosetime.js Thin...

I am trying to implement proper a Post Redirect Get on a PHP site (although the question I believe is language agnostic in nature). I thought about it, and realized that running this code on every request seems to give me the behavior I'm seeking. if (! empty($_POST)) { header("Location: htt...

Here is my requirement: generate Excel reports for users, attaching them to emails; additionally, insert hyperlinks into those emails where the user can view the same report on a web page. I have a Windows forms util that I use to generate the Excel spreadsheets and email them. I have a Web API...

I wanted to make a sidebar for my app. The sidebar should reside inside of a state that has child states, and it should act as the navigation for those child states. The problem is that I would have to have long and repetitive HTML for each time I needed the sidebar, so I came up with a solution...

I'm starting a project in which I'll generate random graphs and use algorithms to solve them. The first necessary step is obviously to build a graph. My graph has the following characteristics : It can be directional or not, implying that the Edge between NodeA and NodeB can be traversed fro...

Exercise 2.5: Show that we can represent pairs of nonnegative integers using only numbers and arithmetic operations if we represent the pair a and b as the integer that is the product 2^x*3^y. Give the corresponding definitions of the procedures cons, car, and cdr. Please review my code. (de...

I've made more improvements from previous iterations and my own, including: Added the -n flag (print owner and group IDs instead of names) Eliminated some bools by allowing certain flags to turn on others Added a Date struct for keeping the current date in one place Added an Entry struct to eas...

Problem 21: Let \$d(n)\$ be defined as the sum of proper divisors of \$n\$ (numbers less than \$n\$ which divide evenly into \$n\$). If \$d(a) = b\$ and \$d(b) = a\$, where \$a ≠ b\$, then \$a\$ and \$b\$ are an amicable pair and each of \$a\$ and \$b\$ are called amicable numbers. For...

I am sure many of you know the game 'Mastermind', the board game version, not the TV show. I have written a program for the game, but it seems very messy, coding and output. How can I tidy it up a bit? Here is my game: import random colours=["Red", "Blue", "Green", "Yellow", "Black", "White"] p...

I am trying to program a skew logistic distribution function to return the PDF, the CDF, and (later) the inverse CDF. Although there are several forms of skew logistic, this is for perhaps the most widely known, a variation of the skew normal distribution introduced by Azzalini and covered by Sa...

Ok, here it goes, I am by no means a web programmer, so try not to laugh, but with google and the internet and some java, i have been able to build a site that has worked for the last few years just fine on a 2003 IIS server, this site pulls city hall account data from an oracle server and based ...

I attempted a problem from the "Cracking the Coding Interview" book. The following input: aabcccaaa should give the following output: a2b1c3a3 Here is my code. Any advice is much appreciated! Thank you so much!! #include <stdio.h> #include <stdlib.h> #include <string.h> char* compress(char*); ...

I attempted a problem from the "Cracking the Coding Interview" book. The following input: aabcccaaa should give the following output: a2b1c3a3 Here is my code. Any advice is much appreciated! Thank you so much!! #include <stdio.h> #include <stdlib.h> #include <string.h> char* compress(char*); ...

I am a bit confused over this. I have a function. Inside that function it asks a number of questions, one is the following based on the number of gardens they have - so if they say they have 2 gardens it will ask this question twice and should add the 100 twice to the calculation: gardens = int...

In the app I'm creating, when a user upvotes a post, the post should be upvoted, as well as the user that wrote the post. But this updates two MongoDB documents. This presents a number of issues. I'll first provide an overview of the code and then list the issues. A user clicks on an upvote butt...

I am working on a boids simulation and just about everything is working except one thing, the boids all go and stay in the lower right corner. I have tried everything but cannot fix this, please help! Code here: #!/usr/bin/env python import sys import pygame import random import math # Initial...

i was working on this game for while and I have made it for education purpose by using SFML. The game works fine but I would like to know how can I improve it. #include <SFML/Graphics.hpp> #include <vector> #include <utility> #include <array> #include <random> #include <iostream> #include <algo...

With the festive season mood and the new year comming I thought I would make my first question this year (well, not quite yet, at least in gmt +1...), and it turns out to be a tree implementation. Blame me because it doesn't have anything about christmas :p. public interface ITreeITem { obje...

I was going through the review queue and came across a question that I thought may be off-topic. I was deciding which topic it would be off-topic for, if any. And noticed that the radio buttons are too high. This was strange as the "why should this question be closed?" was fine. (Horrible red und...