SortingAlgorithms | Playground Files for the Medium article series | Compression library
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Playground Files for the Medium article series "Sorting Algorithms".
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QUESTION
I have been writing a Sorting visualiser in flutter, I am so far able to animate the movement of blocks. But I also want to update the colours of the block, when the block goes through the states of being scanned, moved, and finally when it is completely sorted. I looked up the State management in flutter, and it is rather confusing to know what approach should I be using in my project.
Below is the DashBoard Class:
ANSWER
Answered 2021-Mar-25 at 19:32As far as which state management route to go with, it really can be done with any of them. GetX to me is the easiest and has the least boilerplate.
Here's one way to do this. I just updated the insertionSort method to get you started and you can go from there. Any other changes you notice in your other classes are just to get rid of linter errors.
All your methods and variables can now live in a GetX class. With the exception of color, the rest are now observable streams.
QUESTION
We have classes A, B and C, all of which need access to a static variable staticVariable in class D.
Moreover, class A needs to have an instance of classes B and C like this:
...ANSWER
Answered 2021-Feb-16 at 14:11// in D.hpp
class D {
public:
D() { ... }; // staticVariable is static, so the ctor has no business initializing it
void init();
static int staticVariable;
static D staticD;
};
// in D.cpp
#include "D.hpp"
int D::staticVariable = 10;
// Immediatly invoked initializing lambda expression
D D::staticD = []{ D tmp; tmp.init(); return tmp; }();
QUESTION
I have a base class in which I have a pure virtual function and with this function, I want to override it in other derived classes (in some of those with a different number of parameters if possible).
So in the MergeSort subclass, I have MSort method which will need a different number of parameters as it is done recursively.
So having this function at the moment with those parameters I'm getting this error 'MergeSort:' cannot instantiate abstract class. BUT if I override the Sort method from the base class works fine, but I don't need one parameter.
I also tried to declare another virtual function with a different number of parameters and define it in MergeSort class and I get the same thing.
I'd also like to clarify that I have other subclasses for different algorithms (bubble sort, insertion sort etc) which are implemented similarly to MergeSort (a constructor and a sort function) but the sort function has the same no of parameters(just one used for a graphical interface) like in the base class from above.
So is it possible to have an overridden method with a different number of parameters? Or any other solution to what I've said above?
...ANSWER
Answered 2020-Aug-24 at 19:18As stated in the comments, you have to use the same signature for all your overrides. In doing so, you could use the following approach: use overridden function as a sort of entrypoint, inside which you call a real function (maybe private) that performs sorting. An example to illustrate the approach:
QUESTION
I am trying to build a sorting visualiser and when I code the merge sort algorithm the returning array is always of length 1 and my algorithm seems perfectly fine and I don't know what's making it to return single length array element and I did try to debug using console statements and everything seems fine until it goes into recursion.
my main app.js code is here:
...ANSWER
Answered 2020-Jul-15 at 04:04I think you're gonna kick yourself for this one, I've done it many times in the past.
QUESTION
Reading in a csv file should be straight forward, right? But when I do this:
...ANSWER
Answered 2020-May-08 at 17:01Update the package:
QUESTION
I am trying to benchmark the performance of three different sorting algorithms. I want to print the result on my terminal.
Here's the code I am using:
...ANSWER
Answered 2020-Feb-11 at 12:21As said in the comments, you only formatted the string, but you did not print it.
You don't expect a string to be output without calling the print function.
QUESTION
i'm building a sorting algorithm visualizer. And every one of these items is a div with the backgroundColor set to white.
When the algorithm is running he sets the backgroundColor to orange to display which items have changed.
But the problems happens when i reset the array using setState(), because react re-renders the new array perfectly fine, but he never renders the backgroundColor back to white.
This is my component:
...ANSWER
Answered 2019-Oct-23 at 20:52You're going to want to keep everything in state in order for react to re-render based on any changes to state.
QUESTION
I have a Julia project configured to run unit tests in travis-ci and I got a Pull Request from someone else. Tests are passing for julia 0.7, but not for julia 1.1.
I am getting an error related to an unsatisfiable requirement https://travis-ci.org/AlexS12/FlightMechanics.jl/jobs/545855260
...ANSWER
Answered 2019-Jun-14 at 20:44Why don't I get the same error?
What you did locally is not the same as what happens on CI here. On CI tests are run with the package as the active environment, while when you test locally you test from a global environment ((v1.1) in this case). You will get the same error if you run with FlightMechanics as the active environment.
What is wrong so dependencies are not properly solver in travis-ci?
The problem is that you have a very outdated Manifest.toml file in the repository. The manifest that is used is the one from the active environment.
You can either update the Manifest.toml (pkg> up when you have the package as the active environment) or remove it from the repo and add it to .gitignore.
QUESTION
I am new to threads, and I don't know much about them, however I am struggling with creating them mainly.
I created a GUI program that repeatedly sorts a randomly generated array of ints using either selection sort, insertion sort, or merge sort. Each sort operates on a list whose size is raised by a power of 2. Upon completion of each sort, the number of elements sorted and the number of milliseconds it took is displayed.
I have 3 classes already done, they are Merge, selection, and insertion.
My Merge sort is working correctly, however I am still having trouble with the selection and insertion. I'm not sure if my 'if' and 'else' statements are incorrect, or if the threads themselves are wrong, but I am struggling with them.
Here's what I have in my Main class.
...ANSWER
Answered 2019-Apr-15 at 23:48Thread sortContext = new Thread(new SortRunnable(*whatever args you need*));
sortContext.start();
QUESTION
I'm working on a merge sort algorithm in c# using List and I get a weird error.
...ANSWER
Answered 2017-Jan-02 at 16:02Because the signature of GetRange is not GetRange(lower, upper), it's GetRange(index, count). Note that the error message talks about offset and length.
In other words: it does not return the range [y, x], it returns x elements starting at y.
To get the elements from y to x (including y and x), use GetRange(y, y - x + 1) instead. In your case, that would be array.GetRange(y, array.Count - y).
PS: Since your array is not actually an array, I suggest you use a different variable name.
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