DataStructure | 💋💋数据结构、算法总结、学习算法的时间复杂度、空间复杂度、分析算法特点以及应用、Java面试难题、Android面试难题 | Learning library
kandi X-RAY | DataStructure Summary
kandi X-RAY | DataStructure Summary
数据结构、算法总结、学习算法的时间复杂度、空间复杂度、分析算法特点以及应用、Java面试难题、Android面试难题
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DataStructure Key Features
DataStructure Examples and Code Snippets
Lines of Code : 23License : Permissive (MIT License)
Copydef 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
QUESTION
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 13:54Is 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):
QUESTION
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 03:01The 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:
QUESTION
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 13:44list_ = range(10)
list_ = [-x for x in list_]
QUESTION
I'm trying to build this datastructure with a nested dictionary:
...ANSWER
Answered 2021-Jun-06 at 10:04I've used a slightly older C# language specification for the answer, and made the type declarations more clear for you to understand.
QUESTION
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 07:39Thanks to @S.M. @anastaciu and @jkb for their guidance.
The original code posted here was:
QUESTION
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 18:56upload 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 /)
QUESTION
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 10:49In your return statement, you are using "{{}}", just remove those and it will work fine. It should be like this
QUESTION
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 19:07ProjectTypes is a List and ProjectType is a ProjectType.
The types should match so either change the type of the source collection:
QUESTION
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 23:14An 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.
QUESTION
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 01:37I think the part you're missing is how to parameterize the name key. I'll break it down:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install DataStructure
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 .
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