cheat-sheet | Data structures & algorithms cheat sheet | Learning library

by ljeng Python Version: Current License: No License

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

kandi X-RAY | cheat-sheet Summary

cheat-sheet is a Python library typically used in Tutorial, Learning, Example Codes applications. cheat-sheet has no vulnerabilities and it has low support. However cheat-sheet has 4 bugs and it build file is not available. You can download it from GitHub.

Data structures & algorithms cheat sheet

Support

Quality

Security

License

Reuse

Support

cheat-sheet has a low active ecosystem.

It has 588 star(s) with 95 fork(s). There are 34 watchers for this library.

It had no major release in the last 6 months.

There are 2 open issues and 0 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 cheat-sheet is current.

Quality

cheat-sheet has 4 bugs (4 blocker, 0 critical, 0 major, 0 minor) and 10 code smells.

Security

cheat-sheet has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

cheat-sheet code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cheat-sheet 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

cheat-sheet releases are not available. You will need to build from source code and install.

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

cheat-sheet saves you 159 person hours of effort in developing the same functionality from scratch.

It has 395 lines of code, 31 functions and 4 files.

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

Top functions reviewed by kandi - BETA

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

DFS DFS traversal
Reverse between start and end nodes
Calculate the word lldderr of a word
Finds the dijkstra s shortest paths
Flush the border of a matrix
Performs flood fill of a matrix
Get the neighbors of a matrix
Construct the prefix sum of a matrix
Perform the Wagner Fengner fitting
Convert a matrix to a graph
Computes the maximum distance between two points
Compute the Hessian of a set of values
Calculate the maximum likelihood of a series

Get all kandi verified functions for this library.

cheat-sheet Key Features

No Key Features are available at this moment for cheat-sheet.

cheat-sheet Examples and Code Snippets

Cheat Sheet

npm

Lines of Code : 1

License : No License

Copy

var rp = require('request-promise');

Community Discussions

Trending Discussions on cheat-sheet

Push event doesn't trigger workflow on push paths (github actions)

what is time complexity of python Dictionary.values()?

How do I keep the browser open on a failed test using Selenium+Nightwatch+Chromedriver?

what is the usage of see function(rx) here?

Show, for each field, how many items has each field DjangoREST

how to display no. of character user can type and how many characters user had typed in TextFormField Flutter

What the difference between != and =/= in chisel?

RandomForestClassifier is throwing error: one field contains comma-separated values

Read JSON arrays into a Bash array

Nginx Config, Deny Image Stored in Specific Folder If $http_cookie Isn't Set

QUESTION

Push event doesn't trigger workflow on push paths (github actions)

Asked 2021-May-15 at 21:11

I'm currently testing Github Actions workflows on this repository.

Context

I'm trying to use this workflow (1st):

...

ANSWER

Answered 2021-May-15 at 21:11

No, you didn't miss anything in your workflows.

You just need a different token.

When you use actions/checkout, it uses the GITHUB_TOKEN for authentication, and according to the documentation it doesn't trigger a new workflow run:

When you use the repository's GITHUB_TOKEN to perform tasks on behalf of the GitHub Actions app, events triggered by the GITHUB_TOKEN will not create a new workflow run. This prevents you from accidentally creating recursive workflow runs.

To make it work, you need to generate a PAT (Personal Access Token), store it in your repository secrets, and use it in your checkout step:

Source https://stackoverflow.com/questions/67550727

QUESTION

what is time complexity of python Dictionary.values()?

Asked 2021-May-14 at 02:05

I have referred to this page but it shows Dict.keys()'s time complexity. https://wiki.python.org/moin/TimeComplexity

This sheet also shows the same https://www.geeksforgeeks.org/complexity-cheat-sheet-for-python-operations/

Time complexity for lookup in dictionary.values() lists vs sets In this case, it searches for each key's list so it didn't help me. Because in my case, all Dict's values will be a single integer.

Q(1): Is it O(1) or O(n) for Dict.values()?

...

ANSWER

Answered 2021-May-14 at 02:05

Q(1)：I think it is O(1)

edit:I was wrong.It is O(n).Thanks to @Roy Cohen and @kaya3.

test code:

Source https://stackoverflow.com/questions/67515249

QUESTION

How do I keep the browser open on a failed test using Selenium+Nightwatch+Chromedriver?

Asked 2021-May-12 at 05:06

I'm using Nightwatch, Selenium, and Chrome Driver to conduct automated UI testing. Sometimes there are test failures on any number of remote environments. To debug the failures locally, I would like to keep the browser open on test failure.

I used to be able to do this using config settings in nightwatch.json and nightwatch.conf.js, but I lost my config settings cheat-sheet in a hard drive failure, and despite my best efforts on google I can't seem to find the right combination again.

If I remember correctly, it wasn't any kind of keepBrowserOpen: true type flag. If memory serves, it was some type of timeout set to a silly high number combined with something else like detachDriver. I've checked the Selenium documentation with specific focus on the Chrome Driver Options, and the list of Chrome Driver options, but I haven't found any working combinations.

What am I missing?

Here is my nightwatch.json

...

ANSWER

Answered 2021-May-12 at 05:06

This is not an elegant solution but close to what you are looking for. Basically, we can check the value of browser.currentTest.results.errors in afterEach() and in case if the value is more than 0, then we can just pause the test there, keeping the browser session alive.

Source https://stackoverflow.com/questions/67492302

QUESTION

what is the usage of see function(rx) here?

Asked 2021-May-06 at 00:09

I am working in the string manipulation with the help of REGEX. I am going through some of the cheat-sheets. I noticed an example

see <- function(rx) str_view_all("abc ABC 123\t.!?\\(){}\n", rx)

What is the usage of function (rx) here ? I am curious to know the answer. Because if i remove function(rx) and give a pattern i get the same answer.

see <- str_view_all("abc ABC 123\t.!?\\(){}\n", "a")

But here i have to use my variable to see my output. Can you please anyone explain?

...

ANSWER

Answered 2021-May-01 at 16:58

rx is the name of the function's argument. Coders many times choose the name x, probably the most frequent, but the name doesn't matter, just like in a mathematical function you can name it x, y, id or anything you want.
With a function you can pass your variable to it without repeating its code every time you need it.

Source https://stackoverflow.com/questions/67348698

QUESTION

Show, for each field, how many items has each field DjangoREST

Asked 2021-Mar-24 at 11:15

I'm working on a Django project, coding some API calls where people can reserve a parking place. I have a database, and I want to display how many reservations has each user.

I know this can be done easily on SQL, but I can't find the way to do this on Python. I've already tried to do what the documentation says: https://docs.djangoproject.com/en/3.1/topics/db/aggregation/#cheat-sheet but it doesn't work for me.

...

ANSWER

Answered 2021-Mar-24 at 11:15

You have to import Count:

Source https://stackoverflow.com/questions/66750078

QUESTION

how to display no. of character user can type and how many characters user had typed in TextFormField Flutter

Asked 2021-Mar-11 at 19:11

How can we display the count of input characters entered by the user and how many characters user can type in that TEXTFORMFIELD in Flutter? Like this

image credits : blog link

...

ANSWER

Answered 2021-Mar-11 at 18:52

You can add maxLength property (it will show the writtenCharacters/totalLimit)

Source https://stackoverflow.com/questions/66588465

QUESTION

What the difference between != and =/= in chisel?

Asked 2021-Feb-22 at 20:08

The Chisel cheat-sheet give two way do express inequality :

...

ANSWER

Answered 2021-Feb-22 at 20:08

They are equivalent, but != is deprecated in favor of =/=.

I'll see about removing != from the cheatsheet.

Source https://stackoverflow.com/questions/66273849

QUESTION

RandomForestClassifier is throwing error: one field contains comma-separated values

Asked 2021-Jan-29 at 01:26

I am trying to fit a RandomForestClassifier, like this.

...

ANSWER

Answered 2021-Jan-29 at 01:26

Assume that you have this dataset:

Source https://stackoverflow.com/questions/65930597

QUESTION

Read JSON arrays into a Bash array

Asked 2021-Jan-16 at 16:57

I have the following json file:

...

ANSWER

Answered 2021-Jan-16 at 16:08

Invoke JQ with the -c flag so that it prints each array in a single line.

Source https://stackoverflow.com/questions/65750516

QUESTION

Nginx Config, Deny Image Stored in Specific Folder If $http_cookie Isn't Set

Asked 2020-Dec-01 at 19:15

I am currently launching a WordPress site that moves image uploads into a certain folder when they are added. On my development server I have made it so that images stored in this folder are NOT ACCESSIBLE, unless a specific $http_cookie is set in the browser. Here is the location block I'm using for this in my development NGINX config:

...

ANSWER

Answered 2020-Dec-01 at 19:15

To help people that find this question in future

Nginx then tries to match against the regular expression locations sequentially. The first regular expression location that matches the request URI is immediately selected to serve the request.

via Understanding Nginx Server and Location Block Selection Algorithms

Per the question, the less restrictive regex location was declared BEFORE the more restrictive location so it was selected as the location to serve the request.

By moving the more restrictive location BEFORE the other will cause it to be selected when the regex matches.

Source https://stackoverflow.com/questions/65095039

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

Vulnerabilities

No vulnerabilities reported

Install cheat-sheet

You can download it from GitHub.
You can use cheat-sheet like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

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 .

Find more information at: