DataStructure | Java implementation of commonly used data structures | Dataset library

by githubofrico Java Version: Current License: No License

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | DataStructure Summary

DataStructure is a Java library typically used in Artificial Intelligence, Dataset, Example Codes applications. DataStructure has no vulnerabilities and it has low support. However DataStructure has 3 bugs and it build file is not available. You can download it from GitHub.

Java implementation of commonly used data structures and their algorithms, including but not limited to linked lists, stacks, queues, trees, heaps, graphs and other classic data structures and other classic basic algorithms (such as sorting, etc.)...

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Support

DataStructure has a low active ecosystem.

It has 449 star(s) with 182 fork(s). There are 19 watchers for this library.

It had no major release in the last 6 months.

There are 4 open issues and 2 have been closed. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of DataStructure is current.

Quality

DataStructure has 3 bugs (0 blocker, 0 critical, 1 major, 2 minor) and 284 code smells.

Security

DataStructure has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

DataStructure code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

DataStructure does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

DataStructure releases are not available. You will need to build from source code and install.

DataStructure has no build file. You will be need to create the build yourself to build the component from source.

DataStructure saves you 785 person hours of effort in developing the same functionality from scratch.

It has 1806 lines of code, 151 functions and 37 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed DataStructure and discovered the below as its top functions. This is intended to give you an instant insight into DataStructure implemented functionality, and help decide if they suit your requirements.

Shortcut for testing
Puts the barrier at a given row
Checks to see if the position of a corner in a chess matrix is one
Gets the intersection point
Returns true if the two linked lists are intersect
Sort an array of ints
Shuffles a small array down
Sort the heap
Shifts the heap down
Prints a test
Removes the top element from the stack
Removes a element from the queue
Pops the top of the stack
Prints the contents of the queue
Returns a string representation of this list
Prints the middle nodes in the tree
Creates a binary tree from the given expression
Removes duplicate nodes
Simple test entry point
Removes an element from the list
Optimize a double array
Binary sort method
Print all nodes in the tree

Get all kandi verified functions for this library.

DataStructure Key Features

No Key Features are available at this moment for DataStructure.

DataStructure Examples and Code Snippets

Return the modes of a list .

python

Lines of Code : 23

License : Permissive (MIT License)

Copy

def mode(input_list: list) -> list[Any]:
    """This function returns the mode(Mode as in the measures of
    central tendency) of the input data.

    The input list may contain any Datastructure or any Datatype.

    >>> mode([2, 3, 4,

Community Discussions

Trending Discussions on DataStructure

How to store an Object-Array in native Memory using Java Panama

I'm trying to delete an article with Flask but KeyError appears

Python - Invert a list

All the nested dictionaries holds the same value?

munmap_chunk(): invalid pointer Error while making an Array data structure in C++

Uploading file to flask app gives NotADirectoryError: [Errno 20] Not a directory

TypeError: unhashable type: 'set' in Flask Form while uploading file

Binding to an enum inside a child view model combobox object is not renders on UI

Good datastructure to count # of keys between two specified keys

Python - Automate parameter change in loop

QUESTION

How to store an Object-Array in native Memory using Java Panama

Asked 2021-Jun-12 at 13:54

I want to implement a datastructure in native memory using the Foreign Memory Access API of Project Panama.

In order to do that I need an underlying Object array (Object[]) for the entries.

In all the examples for the Foreign Memory Access API, MemorySegments are only used to store and retrieve primitives like so:

...

ANSWER

Answered 2021-Jun-12 at 13:54

Is there a way to store non primitives in a MemorySegment (e.g. Object)?

No, at least not directly. Objects are managed by the Java runtime, and they can not be safely stored in native memory (for instance because the garbage collector would not be able to trace object references inside objects in native memory).

However, as noted in the comments, for your purposes it might be enough to store the data inside an object in native memory. For instance, if an object contains only primitive fields (though, the same could be done recursively for object fields), it would be possible to write each such field separately to native memory. For example (with the JDK 16 API):

Source https://stackoverflow.com/questions/67943155

QUESTION

I'm trying to delete an article with Flask but KeyError appears

Asked 2021-Jun-10 at 03:01

Hi I'm coding review page with Flask but struggling with creating delete button. According to my code, when delete button is clicked, KeyError appears. There are only two rows in the review table which are Writer and Content. I pasted showing and deleting review API code, also with Server side Delete function.

Is my way alright to delete code by sending title and review from client to server then delete the object in DB which matches title and review which is sent by client? I'm wondering why KeyError is appeared. I beg for your help! Thanks for reading.

...

ANSWER

Answered 2021-Jun-10 at 03:01

The issue stems from your string interpolation when generating the button.

${title, review} only injects the value of review. Since your deleteReview only receives one argument, the review_give field in the data of ajax call is left blank, leading to the corresponding missing key in your flask app.

This is how you correctly do your string interpolation:

Source https://stackoverflow.com/questions/67913907

QUESTION

Python - Invert a list

Asked 2021-Jun-06 at 15:04

Is there any way in Python to invert a list or a tuple in just one expression, without doing, for example:

...

ANSWER

Answered 2021-Apr-10 at 13:44

list_ = range(10)
list_ = [-x for x in list_]

Source https://stackoverflow.com/questions/67035003

QUESTION

All the nested dictionaries holds the same value?

Asked 2021-Jun-06 at 13:27

I'm trying to build this datastructure with a nested dictionary:

...

ANSWER

Answered 2021-Jun-06 at 10:04

I've used a slightly older C# language specification for the answer, and made the type declarations more clear for you to understand.

Source https://stackoverflow.com/questions/67857808

QUESTION

munmap_chunk(): invalid pointer Error while making an Array data structure in C++

Asked 2021-Jun-03 at 07:43

I tried going through many similar questions regarding munmap_chunk(): invalid pointer errors, but I'm stuck as to what to do. I tried adding free commands too.

I'm a C++ novice and normally use Python and Java, so the whole concept of pointers and memory management are new to me. It would be great if someone can explain what I'm doing wrong.

Here is my code for my Array class for a generic T:

...

ANSWER

Answered 2021-Jun-03 at 07:39

Thanks to @S.M. @anastaciu and @jkb for their guidance.

The original code posted here was:

Source https://stackoverflow.com/questions/67816624

QUESTION

Uploading file to flask app gives NotADirectoryError: [Errno 20] Not a directory

Asked 2021-May-25 at 10:48

He there, I have have been trying to find a solution to my problem for 2 days now but still have not found anything. Might just be missing it. My flask web app is run on Microsoft azure. The error is very simple discretionary not found but i don't know how to find out what the right path is.

I get the following error:

...

ANSWER

Answered 2021-May-24 at 18:56

upload folder is defined as app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER, but does seems like it exist, so the line of code f.save(os.path.join(app.config['UPLOAD_FOLDER'], filename)) is getting failed. you can try

create the folder "uploads", and it will be at the same level as templates.
the os.remove will look like as below(remove the first /)

Source https://stackoverflow.com/questions/67674294

QUESTION

TypeError: unhashable type: 'set' in Flask Form while uploading file

Asked 2021-May-11 at 10:49

I am trying to fetch data from a form in Flask the form has a file as well:

app.py

...

ANSWER

Answered 2021-May-11 at 10:49

In your return statement, you are using "{{}}", just remove those and it will work fine. It should be like this

Source https://stackoverflow.com/questions/67481914

QUESTION

Binding to an enum inside a child view model combobox object is not renders on UI

Asked 2021-May-06 at 19:07

I have a Parent ViewModel which contains a child view model object inside with some enum,

When I open the UI I see that the enum value not renders as expected from the RaisePropertyChanged event on first time loading, however, after setting a value from the UI the value changes and renders as expected.

Parent VM xaml

...

ANSWER

Answered 2021-May-06 at 19:07

ProjectTypes is a List and ProjectType is a ProjectType.

The types should match so either change the type of the source collection:

Source https://stackoverflow.com/questions/67380033

QUESTION

Good datastructure to count # of keys between two specified keys

Asked 2021-May-04 at 23:14

Was going through a hypothetical scenario in my head and couldn't quite think of a datastructure to use in this situation. Assume all we need is the ability to add() & remove() keys and then count(key1, key2) the number of keys between the two specified (inclusive). We are assuming of course that these keys overload the comparison operators so they can definitively be less than, greater than, or equal to each other. So for instance, if we inserted 1, 5, 3, 4, 7 and then ran count(1, 4), we would get a resulting output of 3 since we could count the keys 1, 3, and 4.

Now we could do this with a binary search tree using recursion in O(n) time, but what if we needed count() to run in O(log(n)) time? Is there a datastructure out there that you could potentially modify to perform this?

At first I thought maybe we could use an heap or BST and keep track of the number of children on each side. But then I just got really lost trying to trace it out on paper.

...

ANSWER

Answered 2021-May-04 at 23:14

An order statistic tree is a modification of a BST that allows you to query, for any value, how many elements of the tree are smaller than that value. You can then count how many items are in the range (a, b) by asking how many items are less than a, then subtracting out how many items are less than b.

Each operation on an order statistic tree (add, remove, lookup, and count) takes time O(log n), so this lets you solve your particular problem in time O(log n) as well.

Source https://stackoverflow.com/questions/67393261

QUESTION

Python - Automate parameter change in loop

Asked 2021-May-02 at 02:27

First things first, I'm new to Python and the following info may contain bad coding and incorrect names.

I have the following Endpoint example to create a key using an HTTPS API:

...

ANSWER

Answered 2021-May-02 at 01:37

I think the part you're missing is how to parameterize the name key. I'll break it down:

Source https://stackoverflow.com/questions/67352251

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install DataStructure

You can download it from GitHub.
You can use DataStructure like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the DataStructure component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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