I'm not sure what is exactly the difference between a glob, a shell expansion, tilde expansions and a wildcard expansions but I know how the characters should work in a shell and I've just made tilde (home directory) work with wildcards in my custom shell. $ ls ~/.* Wildcards only implemented f...

So I've just started learning about MySQL and PHP to create a fantasy league tracker for Game of Thrones for my office. I got it to technically work fine, but I think it's way clunkier than it has to be, with a lot of repeated code, and I'd like to know how to clean it up and streamline things. ...

We have a payment system where we have an Invoice class in which we calculate the total amount of money should be paid. But this total amount calculation depends on the type of customer and discount offer. Also over the time the offers / discount may differ and may need to change the offer at ...

I was trying to implement the Quick Search Algorithm in python. I am running into some problems with it. """ This is the Quick Search algorithm v 2""" def alphabet_index(c): """ Returns the index of the given character in the English alphabet, counting from 0. """ return ord(c.lower...

I have the following code that uses OpenCV and numpy. I am new to python and feel that this code isn't good for memory footprint. I'm looking for suggestions to make this code memory efficient. # I get rects from extracting regions in an image for r in range(0,len(rects)): rects_new.append(re...

I have 2 different files. I want to compare first 4 letters of each file. For example. file1 contains 1111aa 1111ba 2222cc 3333dd 2222zd 3211fa 4244ws file2 1111 2222 3333 In file3 i want to list all strings from file1. I can only find 13 out of 100. Here is my code inputFile1=open('file1', ...

Little intro: Change making problem - is the problem of representing a given value with the fewest coins possible from a given set of coin denominations. Unboundedly many coins of each denomination are available. Last time i asked : Coins changing with recursion No one helped , maybe there was ...

I want to iterate over all randomly generated CSV files in a folder using java and add them line by line. Each CSV files has 3 rows, the 1st row indicates just the number of generated files and may run from 1-50 and doesn't need to be included in the sum. There may be around 5 or 6 CSV files in t...

I want to iterate over all randomly generated CSV files in a folder using java and add them line by line. Each CSV files has 3 rows, the 1st row indicates just the number of generated files and may run from 1-50 and doesn't need to be included in the sum. There may be around 5 or 6 CSV files in t...

Adding new employee: each employee can be added to the system by entering their identification number, department, and age, where id and age ian integer number, and department code is coded as a character. a. Employee list should be maintained in an increasing order based on the employees’ id. ...

I was inspired from question here, to implement function container that holder any kind of function by using boost::any, I have carried on and extend it further to make the functions holder accept lambda. Also, I have implemented my own any class. Any class seems work perfectly. I would like to ...

The Following Method Copy Data from informix db to sql server db and it's so slow , i want to refactor it so it could be more readable and faster : public static int copyEmpData(DataTable employeeDT, DateTime from_date, DateTime to_date, string con) { string db_con = con; ...

I have embedded bootstrap carousel for these six galleries below. Each of them work when I click on them - the carousel opens and everything that should be there is there. The problem is in the picture below. For the first section (mountain photography) everything works perfectly in the carous...

I saw a game made in python and pygame in a tutorial, so I thought I'd make a game like it in allegro5 and c++, I think I made my style a little better than my style before since I stopped putting everything in the main function, and I also stopped using 'magic numbers', and I'd like to know of y...

A binary tree is balanced if both its children are balanced and difference between the heights of its children is atmost 1. /** * Definition for a binary tree node. */ class TreeNode { int val; TreeNode left; TreeNode right; TreeNode parent; TreeNode(int x) { val =...

I wrote a small program for fun to try to prove Pi by taking a certain precision and radius and using it to calculate the area of the circle. My method should be giving me an area that is just slightly larger than the actual area of the circle, approaching the actual area as the precision gets sm...

This checks if both the left and right subtrees are binary search trees. If they are, then it compares the nodes data with the maximum element in the nodes' left subtree and minimum element in the nodes' right sub tree. class Node{ int data; Node left; Node right; Node(int x){ ...

I've designed my new website: Now I want to build up my HTML as semantic as possible. Here's my first attempt / set-up: <html> <head> ... </head> <body> <nav id="menu" role="navigation"> <ul> <li>Home</li> <li>Het park</li>

I am working on a React-Redux app, which is a CRUD application for a school. The first part was to implement adding/removal of classes (aliased to standard). However, the code seems unreasonably bulky to me, even when I just started out. I have split some of the code across various components, b...

So the idea is to maintain a cache of shared Observables - accessible by a key - which if not present will produce one using the given factory. The underlying shared Observable is accessed via an Observable created on each invocation of get - this is in order to be able to maintain ownership of ...

All the gui panels contain controls suck as buttons, text etc. They are not to be accessed from the outside of this class. At some point in the game we need to change value of some texts. But adding function that will get string value and change text controls is not possible because then the pan...

I have a C++ code which written for mex in MATLAB.It used to compute the total different between a pixel and its neighborhood (8 neighborhood in my code). The code ran and gave me an expected result. However, I think that we can make my code more faster (because a lot of if statement). I am very ...

I have to write a Java code to extract words and their frequencies from an input fie. The code should discard illegal words that is words containing numbers or any special characters (hyphen is acceptable). Please help me with this. Thanks!

I am trying to give styles to the transport links Li, i have done it, but i have the feeling it could be a cleaner code and i am not completely sure if using absolute position is the best approach here, perhaps i should use before pseudoclass. Could you please point me out what it the best and cl...

I am learning Java and hence practicing it from here. The solution seems pretty trivial to me but still I would like to have a honest review which would guide me to following ideas: Am I maintaining class Invariants? Do I need to have more Domain specific error messages? Although the solution s...

I've just made this program and I want to know how to improve it. It just receives a word and prints it backwards. Sequences of numbers are also accepted, but not white spaces (that's why I used scanf). #include <stdio.h> #include <string.h> int main(void) { const unsigned short MAX = 30; ...

I coded this solution for this problem: Given a string, eliminate all “b” and “ac” in the string, you have to replace them in-place, and you are only allowed to iterate over the string once Seems to work but I am not sure if I violated the "you are only allowed to iterate over the string once" ...

I have created an automated macro which takes vehicle crash data from a csv file and automatically creates pivot table,charts and compares it to the previous year. The code is approximately 1400 lines long and the data of the uploaded csv can be anywhere between 2 to 100 mb csv files with more th...

This code is used to check if a number between 1 and 12 can be found OR made from a group of numbers which can be any combination between 1 and 9 e.g. if the number to be found is 7 can it be found in or made up from any combination of the following? (1,2,3,4,5,6,7,8,9) Yes, 7 on it's own, o...

Please help to improve my code, this is for homework and I'm just curious if more can be done to improve this. The code is about displaying membership information of all clients from a database. Feel free to alter it, but please include some reasons for your alterations, thanks. import sys impor...

A recent question, inspired me to think about how far we've come, and how much easier tasks are in current, modern languages like C# and Java, compared to the low-level languages we were stuck with years ago. Based on that, I decided to post some code for doing the same task, but in a language t...

As a beginning project, I decided to code something that plays the game Chopsticks in Python 3 (please click on the link if you don't already know the game). I'm using the Minimax algorithm, and exploring the tree using simple recursion. One of the main problems is performance. I can only search ...

Given a stack with N elements and a query Q we need to find all elements of stack, for which Q returns a specific value. Time complexity should be less than O(N) Let's preprocess an element, when we add it to cache. Query will be represented by a static class, which has two members getGroup -...