DataStructure | DataStructures with Java and Competitive Coding Programs | Learning library
kandi X-RAY | DataStructure Summary
kandi X-RAY | DataStructure Summary
DataStructures with Java and Competitive Coding Programs from HackerEarth.
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Top functions reviewed by kandi - BETA
- Prints the contents of an array
- Position of arr
- Print an array
DataStructure Key Features
DataStructure Examples and Code Snippets
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
QUESTION
I'm trying to create this datastructure from C:
...ANSWER
Answered 2022-Mar-08 at 11:39As previously mentioned, a table and an array is the same data structure in Lua. In order to “set an array item” it is paramount to use a number as a key. One can’t set an array item with lua_setfield
as it uses string keys. From the output we can see that the function worked exactly as advertised - items were inserted into the table under string keys “1” and “2”.
Please use lua_settable
.
void lua_settable (lua_State *L, int index);
Does the equivalent to t[k] = v, where t is the value at the given valid index, v is the value at the top of the stack, and k is the value just below the top.
Use lua_pushnumber
to push the desired index into the stack, to be used as the key by lua_settable
.
QUESTION
I have some strange behaviour happening with my Redis-OM application, I understand that this is still a very BETA version of the software but I just wanted to make sure I wasn't doing something dumb (which I might be)
So I am setting up an application to keep a playlist of video ID's within a Room that I store temporarily in a Redis Cloud Database.
I have a function that creates a Room, one that fetches the Room details (everything currently in the room) and one that adds a new video to the Playlist within that room. (see below) - NOTE: the data variable within createRoom(data)
is just a string of the Room ID
ANSWER
Answered 2022-Jan-31 at 14:24Redis OM for Node.js supports neither nested objects nor a type of 'object' within the Schema. Valid types are 'string', 'number', 'boolean', and 'array'. Arrays are only arrays of strings. The rest are self-explanatory.
If you want to have a Room that has multiple Videos, you need to define a Room entity, perhaps with a playlist that is defined as an array not of objects, but of Video ids.
Details on this can be found in the README.
QUESTION
We have Beam data pipeline running on GCP dataflow written using both Python and Java. In the beginning, we had some simple and straightforward python beam jobs that works very well. So most recently we decided to transform more java beam to python beam job. When we having more complicated job, especially the job requiring windowing in the beam, we noticed that there is a significant slowness in python job than java job which end up using more cpu and memory and cost much more.
some sample python code looks like:
...ANSWER
Answered 2022-Jan-21 at 21:31Yes, this is a very normal performance factor between Python and Java. In fact, for many programs the factor can be 10x or much more.
The details of the program can radically change the relative performance. Here are some things to consider:
- Profiling the Dataflow job (official docs)
- Profiling a Dataflow pipeline (medium blog)
- Profiling Apache Beam Python pipelines (another medium blog)
- Profiling Python (general Cloud Profiler docs)
- How can I profile a Python Dataflow job? (previous StackOverflow question on profiling Python job)
If you prefer Python for its concise syntax or library ecosystem, the approach to achieve speed is to use optimized C libraries or Cython for the core processing, for example using pandas/numpy/etc. If you use Beam's new Pandas-compatible dataframe API you will automatically get this benefit.
QUESTION
Given an array like this, where the maximum depth can be 3 levels and where we don't know at what level the researched item could be:
...ANSWER
Answered 2022-Jan-05 at 17:09An approach was to separate the tasks of finding a nested item by a custom(izable) entry (key-value pair) and assigning additional custom data to the found item.
Thus one e.g. could implement two methods recursivelyFindItemByEntry
which is based on self recursion and a simple assignToObjectWithFirstMatchingNestedEntry
which assigns provided data to the result of the former function invocation ...
QUESTION
I have snippet of inputs that I render to the html page when a condition is met, everythings works appropriately except for the input with type file, I want to upload the files when a change has occured but the file object is not in request.FILES, it's in request.POST now I don't mind it being request.POST but the files is displayed as 'multiple': ['[object File]']
My partial template
...ANSWER
Answered 2022-Jan-04 at 16:20Did you add/set hx-encoding
to multipart/form-data
?
According to the docs https://htmx.org/docs/#files
If you wish to upload files via an htmx request, you can set the hx-encoding attribute to multipart/form-data. This will use a FormData object to submit the request, which will properly include the file in the request.
QUESTION
I have a dictionary in Julia that I want to sort by values. I found a couple of ways to do it. For instance
...ANSWER
Answered 2022-Jan-04 at 15:45As by the docs, for OrderedDict
order refers to insertion order.
I don't know how this can "lose its order down the line", but maybe you are just mutating stuff?
Probably what you want is closer to a SortedDict
; however, this sorts by keys, not values. A dictionary sorted by values is a bit of an unusual application.
If you want a mutable data structure with fast lookup by key and iteration sorted by value, you could emulate this by a two-level approach: a normal dict for storing a mapping between original keys and tokens, and a second SortedMultiDict{ValueType, Nothing}
to emulate a sorted multiset into which the tokens index. Then you define your own mechanism for indirect lookup through tokens somehow like this:
QUESTION
I am trying to move from R to Julia.
So I have a dataset with 2 columns of prices and 2 conditional columns telling me if the price is "cheap" or "expensive".
So I want to count how many "cheap" or "expensive" entries are.
So using the package DataStructures
I got this:
ANSWER
Answered 2022-Jan-03 at 19:14Use the FreqTables.jl package.
Here is an example:
QUESTION
I’m new to ViewSets and am trying to get the values sent from the front-end fetch method to Django’s request object in the create function. I don’t know whether it’s just a simple syntax error or whether the data isn’t being sent properly from the front-end, but I think it’s a back-end issue.
The stringified data in the post method seems to log correctly at the front-end like with this test:
...ANSWER
Answered 2021-Dec-12 at 22:15You wrote the data as body of the request in a JSON format. You thus should decode the JSON format to a dictionary with:
QUESTION
I have been following this tutorial for creating a variadic structure, which is nearly identical to another tutorial on creating a rudimentary tuple from scratch. Unfortunately when I analyze the variadic structure it seems very inefficient. The size of the structure seems bloated as in the struct's size does not seem to match its variable layout. It doesn't seem like byte alignment is the issue since actual tuples do not seem to suffer from this effect so I was wondering how they get around it, or what I am doing wrong in my struct.
Below is the code I have been using to test the variadic struct:
...ANSWER
Answered 2021-Dec-11 at 20:12Even an empty class needs space to store itself, the minimum size of a class is therefore 1
. As your no argument DataStructure
class is empty and a member it takes up space and causes the rest of the members to take more space to allow for alignment. Making the base non-empty fixes the issue:
QUESTION
I have extended and adjusted the flexform of ext:form
like described here:
ext_localconf.php:
...ANSWER
Answered 2021-Dec-08 at 11:45As a rule of thumb: there are so much ways in form framework, that it is hard to understand a single one :-)
Fact: $this->settings is assigned to the view, but is not passed to the formvh:render viewhelper. So you can't access it in the templates. You have to resolve the flexform (no matter if extended or not) yourself and assign it to your form configuration.
One way of solving this would be:
1. Hook into afterInitializeCurrentPage process
ext_localconf.php:
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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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