I'm working on arrow library for scala
I've come with some new typeclass, which looks like generalized Functor
trait Project[F[_]] extends Functor[F]{
def project[=>:[_,_], A, B](f: A =>: B)(implicit ar: ArrowChoice[=>:]): F[A] =>: F[B]
def map[A, B](fa: F[A])(f: A => B): F[B] = project[Fu...
I'm writing tutorials for new programmers. The tutorials show programmers how to structure events.
I've attached the code for one of the tutorials. Can someone take a look at my code and let me know if you see any bugs or gotchas? The goal of the code is to (a) be extremely easy to read and sho...
I would like to write simple application where I'm going to make a few views.
-Login
-Register
-Main app
-etc.
I think that my method is not the best way to do this.
Can sameone give me a tip?
Main.java
package application;
import javafx.application.Application;
import javafx.stage.Stage;
impo...
My code does the following:
Asks the user for the type of conversion, the degrees and spits the result back. It will prompt the user to ask for the type of conversion again if it's invalid. It will also prompt the user to see if he wants to quit or rerun the program again.
I was wondering if t...
I need help with a question my teacher wants us to do by tomorrow. Id would love you guys to try to help me out with this. The order of the files are in order from HTML,CSS,and JavaScript.
The following functions must be implemented:
a. A function that initializes all variables
b. Variables th...
I have the following function that based on checkbox value will add subscriber to corresponding newsletter list.
The issue is that is sending one email confirmation per list subscribed, instead of sending one email confirmation with all subscribed lists.
Any suggestions on how to fix? Thanks!
...
Goal: make this code as efficient as possible.
Given a finite dataset (Colors - this isn't Crayola here :D) how do I know what colors are not assigned to a given user?
Additional requirement - the final result should output a single column of comma-delimited colors. Spaces do not matter, but i...
my date is not formatting properly. My date is display as 2016-02-08 2016-02-12 but I want it to display as February 22 February 26, which are the next bloack of days it will display a message. Here is my code.
$StartDate = strtotime('2016-01-25');
$EndDate = strtotime('2016-01-29');
...
Note that this code is not going to be used for anything, it's more of a thought experiment. I've been seeing a lot of numpy code lately and noticed that they use a custom indexing process, presumably by defining an object's __getitem__ method. I wrote the following class that allows for a multi-...
This is a partially persistent data structure using a red black tree. It will copy O(lg(n)) items for each remove or add operation.
#pragma once
#include <functional>
#include <utility>
#include <iostream>
#include <stack>
#include <queue>
#include <memory>
#include <deque>
#include <iterator>...
I wanted to implement the cat function in julia and I ran a few test cases but I am not sure if I am missing anything
for line in eachline(STDIN)
write(line)
end
It's a really simple code and I tested it with the following test cases
$ cat hello.txt | julia cat.jl
first line
second line
...
When running the above code, the program segfaults at *plaintxt ^ = key;
I've thought about it and can only come up with, possible order of operations error with de-referencing plaintxt and have a NULL pointer.
... includes ...
typedef uint8_t byte;
void enc(char* plaintxt, byte key){
pri...
