A few days ago I start learning C++. This code is a simple Union-Find data structure.
Questions:
Why can't I use const union_find<T> &uf instead of union_find<T> &uf?
Is it possible to replace union_find<T> with something like self<T> (self refers to current class)?
Did I use references instea...
Array.prototype.insertionSort = function(){
for (var i=1, s,temp; i<this.length; i++){
temp = this[s=i];
while (s&&temp<this[s-1]) this[s] = this[--s];
this[s] = temp;
}
return this
}
Array.prototype.bubbleSort = function(){
var swapped = true;
w...
In this question I asked for a way to compute the closest projected point to a hyperbolic paraboloid using python.
Using the iterative approximation answer, I'm able to use the code below to calculate the closest point to multiple paraboloids.
import numpy as np
np.set_printoptions(suppress=Tru...
I am trying to put shell in the box on my domain but I get a proxy error. Error - Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /shell.
Reason: Error reading from remote server
How do I solve. I am a noob at...
/* (ii) for loop to list out the student's roll numbers who
have secured the highest marks in each subject */
/* roll number who secured the highest marks */
for (j = 0; j < 3; j++) {
max = 0;
for (i = 0; i < n; i++) {
if (max < st[i].sub[j]) {
max = st[i...
Recently I've been interested in language design and text processing. And a common program needed in both of those fields is a lexer. And since I found myself writing a new, slightly different lexer for each project I was working on, I deiced I'd make a simple regex based lexer instead.
I design...
I created simple command line application to read csv files on specific folder and finding the same values on the specify column which exist on all files.
Source Code
Here is the snippet code which is the core of the logic :
func csvReader(inputColumn, fileLocation string) {
startTime := ...
I have two tables : Category and ProductFilter.
Category table is hierarchy and I have depth in each row like it start at 1.
Categories in level two have List<ProductFilter>.
user clicked on category and I want to get ProductFilter to do this I have two code . which one is better :
1-
var cat...
Motivation:
std::apply takes single tuple like argument and unpacks the tuple into the function call. The limitation is that one has to know if the argument is tuple like or not, which makes its use cases severed.
I found a way to solve the problem having 100% backwards compatibility (at least...
I am trying to solve the travelling salesman problem. This function creates the first level in the form of a linked list. This is what the levels look like
and this is the code that creates it:
vector<pot> noviNivo;
int tempInt = vozliscaG - 1;
pot *head=NULL;
pot *tail=NULL;
...
I've recently written an implementation of Barnes-Hut Tree algorithm for n-dimensions. All python implementations I've found were working for 2 dimensions, while I needed on working for 3... So, while I might've just written one for 3 dimensions only, I've decided to write one that works for all ...
Which code is used for finding greatest number of one's in a binary code like eg:00101110011?
Can Any one do it?
If u can then plzzz tell me the code...
A number is perfect if it is equal to the sum of all it's divisors smaller than it. For example divisors of 6 are 1, 2, 3. I want to read an array of numbers and for each number to print 1 if it is perfect and 0 if it's not perfect. Numbers are smaller than 10 ^ 19. How would I do it faster? My v...
This approach might be wrong or right, if you have something to add please correct me since i want to learn!
The past few weeks I'v been trying to build a MVC structure REST API in PHP.And this is my way of understanding how it works:
So the User talks to the app thorough the Router.
Accordin...
I´m using Android Studio 2, and following the book "Learning Java by Building Android Games", the problem is at activity_game xml page, there´s a bug in answers buttons, when i click one of the three buttons to give the answer, the app crashes.
I am emulating the android 5.1 (API 22).
I don´t p...
I have a dataframe df, which contains below data:
**customers** **product** **Val_id**
1 A 1
2 B X
3 C
4 D Z
i have been provided 2 rules, which are as below:
**rule...
Problem
I have image files that are RAW data and have the extension .NEF Whatever edits I make to these files produces what is called a sidecar file with the extension .xmp
Given there are many photos and the photo numbering in the camera can only go up to 9999, there is a possibility that I ma...
I can't link imagemagick (Mac OS X)
$ brew link -f imagemagick
Linking /usr/local/Cellar/imagemagick/7.0.5-9...
Error: Could not symlink include/ImageMagick-7/Magick++/Blob.h
/usr/local/include/ImageMagick-7/Magick++ is not writable.
but Magick++ seems writable when i go to the directory and ...
here is my code:
triangle_numbers = []
number = 0
for i in range(0, 10000):
number = number+i
triangle_numbers.append(number)
for number in triangle_numbers:
number_of_divisors = 1
for i in range(1, int(number/2)+1):
if number % i == 0:
number_of_divisors = n...
I've created a very small script in vba to parse Title from almost any website. I've checked it with few websites and it is providing with the accurate results. I used split function on responsetext to achieve the result. Websites should be placed in column A and the results will be displayed in ...
I've been using std::unique_ptr for cases where I want to store a derived-type value with type erasure, and felt that unique_ptr being nullable was an undesirable degree of freedom. From https://codereview.stackexchange.com/a/54954/62314 I understand Adobe poly and boost probably have similar fea...
I was solving this problem on HackerRank and managed to make a working implementation.
The question in brief can be described as follows -
A binary implementation of a number - say 21 - is - 10101.
The decbinary of the number 21 are [69, 149, 157, ....., 10021, 10101].
The decbinary ...
I recently heard about functional reactive programming and thought it was rather interesting. Therefore, I started out with writing a simple program which processes a list of tasks.
(In this example, the "tasks" are just some strings which need to be printed)
So because I have no idea how to do...I've written a script in vba to parse table from any website if the html elements are not encrypted in javascript. There is a table index in my script in which inputting the right number it is possible to parse any preferable table. Any input on this will be highly appreciated.
Sub TableData()
D...
