List of top 10 algorithms in Interview Questions #8876

.github/ISSUE_TEMPLATE/android-development-with-kotlin.md

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+---
+name: Android Development with Kotlin
+about: Issue template for the Android Dev Kotlin Domain
+title: 'Android Kotlin: 05.12 SUB-TOPIC NAME'
+labels: Android-Dev-Kotlin, GWOC21, documentation, Audio, Video
+assignees: ''
+
+---
+
+<hr>
+
+## Description 📜
+
+*  Give a step-by-step tutorial in Kotlin along with a brief and clear explanation.
+*  Required Documentation or Video or Audio.
+
+<hr>
+
+## Domain of Contribution 📊
+
+- [x] Android Dev (kotlin)
+
+<hr>
+
+<hr>
+
+
+## References :
+https://blog.mindorks.com/gradle-for-android-developers-getting-the-most-of-it
+
+<hr>
+
+## Please Read it Carefully Before Contributing
+* The file structure should look like Android_Development_With_Kotlin  -> 15 Build -> <file name>.
+* You have to push your PR to the Android_Development_With_Kotlin branch only.
+* You can take help to the references but don't simply try to copy it. Just explain in your own word.
+* Your code should be written only in Kotlin.
+* This issue is for GWOC'21 contributors only.
+* You need to push in a single commit. If there exists more than one commit then you need to squash your commits into one commit.
+* Will assign you on a first come first serve basis.
+* Please try to complete your assigned task within 7 days. If you need some more time then, please inform mentors and supervisors.
+* If you have two previously assigned issues on Android-Kotlin pending then please first complete them.
+> Supervisor @rahulsain
+
+## Happy Contributing. Best of Luck.:sparkling_heart:

.github/ISSUE_TEMPLATE/issue-form.yml

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+name: New Issue
+description: Description
+title: "[Create New Issue]: "
+labels: ["GWOC21"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to make an issue!
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Enter a brief description
+      placeholder: Please include a summary. Please also include relevant motivation and context. 
+      value: "Description"
+    validations:
+      required: true
+  - type: dropdown
+    id: version
+    attributes:
+      label: Domain
+      description: Select domain of Contribution
+      options:
+        - Android Dev (Flutter)
+        - Android Dev (Java)
+        - Android Dev (Kotlin)
+        - Backend Dev (Java)
+        - Backend Dev (.NET)
+        - Backend Dev (PHP)
+        - Backend Dev (Python)
+        - C/CPP
+        - Competitive Programming
+        - Cyber Security
+        - DSA
+        - Database
+        - Datascience with Python
+        - Datascience with R
+        - Frontend Dev HTML/CSS/JS
+        - Frontend Dev React/Angular/Vue
+        - Golang
+        - Interview Prep
+        - Java_Domain
+        - JavaScript_Domain
+        - MERN
+        - Machine Learning
+        - Open Source
+        - Python_Domain
+        - Rust
+        - Statistics
+        - UI/UX
+    validations:
+      required: true
+  - type: dropdown
+    id: contribtype
+    attributes:
+      label: Type of Contribution
+      multiple: true
+      options:
+        - Audio
+        - Video
+        - Documentation
+        - Others
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Code of Conduct
+      description: By submitting this issue, you agree to follow our [Code of Conduct]()
+      options:
+        - label: I follow [Contributing Guidelines](https://github.com/girlscript/winter-of-contributing/blob/main/.github/CONTRIBUTING.md) & [Code of conduct](https://github.com/girlscript/winter-of-contributing/blob/main/.github/CODE_OF_CONDUCT.md) of this project.
+          required: true

.github/PULL_REQUEST_TEMPLATE.md

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+<hr>
+
+## Description 📜
+
+Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. 
+Fixes #issue_number_here 
+
+<hr>
+
+## Type of change 📝
+
+<!----Please delete the hashtag from the correct option----->
+
+- [ ] Au#dio (Should be in mp3 format Includes speech clarity, Concise ,Low distortion)
+- [ ] Vi#deo (Animations, screen-recordings, presentations and regular explanatory films are all possibilties etc)
+- [ ] Doc#umentation (Content Creation in the form of codes or tutorials)
+- [ ] Other (If you choose other, Please mention changes below) 
+
+<hr>
+
+## Domain of Contribution 📊
+
+<!----Please delete the hashtag from your domain----->
+
+- [ ] Android Dev #(Flutter)
+- [ ] Android Dev #(Java)
+- [ ] Android Dev #(Kotlin)
+- [ ] Backend Dev #(Java)
+- [ ] Backend Dev #(.NET)
+- [ ] Backend Dev #(PHP)
+- [ ] Backend Dev #(Python)
+- [ ] C/#CPP
+- [ ] Competitive #Programming
+- [ ] Cyber #Security
+- [ ] DS#A
+- [ ] Data#base
+- [ ] Datascience with #Python
+- [ ] Datascience with #R
+- [ ] Frontend Dev #HTML/CSS/JS
+- [ ] Frontend Dev #React/Angular/Vue
+- [ ] Go#lang
+- [ ] Interview #Prep
+- [ ] Java_#Domain
+- [ ] JavaScript_#Domain
+- [ ] ME#RN
+- [ ] Machine #Learning
+- [ ] Open #Source
+- [ ] Python_#Domain
+- [ ] Ru#st
+- [ ] Statis#tics
+- [ ] UI/#UX
+
+<hr>
+
+## Checklist ✅
+
+<!----Please delete options that are not relevant.And in order to tick the check box just but x inside them for example [x] like this----->
+
+- [ ] I follow [Contributing Guidelines](https://github.com/girlscript/winter-of-contributing/blob/main/.github/CONTRIBUTING.md) & [Code of conduct](https://github.com/girlscript/winter-of-contributing/blob/main/.github/CODE_OF_CONDUCT.md) of this project.
+- [ ] I have performed a self-review of my own code or work.
+- [ ] I have commented my code, particularly in hard-to-understand areas.
+- [ ] My changes generates no new warnings.
+- [ ] I'm GWOC'21 contributor
+
+<hr>
+
+<!----Please delete options that are not relevant.----->
+
+## Screenshots / Gif (Optional) 📸
+
+<hr>

.github/keylabeler.yml

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+# Determines if we search the title (optional). Defaults to true.
+matchTitle: true
+
+# Determines if we search the body (optional). Defaults to true.
+matchBody: true
+
+# Determines if label matching is case sensitive (optional). Defaults to true.
+caseSensitive: false
+
+# Explicit keyword mappings to labels. Form of match:label. Required.
+labelMappings:
+  Audio : Audio
+  Video : Video
+  Documentation : Documentation
+  Android Dev (Flutter): Android-Dev-Flutter
+  Android Dev (Kotlin): Android-Dev-Kotlin
+  Android Dev (Java): Android-Dev-Java
+  Backend Dev (Java):  Backend-Dev-Java
+  Backend Dev (.NET):  .NET
+  Backend Dev (PHP):  Backend-Dev-PHP
+  Backend Dev (Python): Backend-Dev-Python
+  C/CPP : C/CPP
+  Competitive Programming : Competitive Programming
+  Cyber Security : Cyber Security
+  DSA : DSA
+  Database : Database
+  Datascience with Python : DSWP
+  Datascience with R : Datascience with R
+  Frontend Dev HTML/CSS/JS : Frontend Dev HTML/CSS/JS
+  Frontend Dev React/Angular/Vue : Frontend Dev React/Angular/Vue
+  Golang : Golang
+  Interview Prep : Interview Prep
+  Java_Domain : Java
+  JavaScript_Domain : JavaScript
+  MERN : MERN
+  Machine Learning : Machine Learning
+  Open Source : Open Source
+  Python_Domain : Python
+  Rust : Rust
+  Statistics : Statistics
+  UI/UX : UI/UX
+  GWOC'21 : GWOC21

.github/stale.yml

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+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 7
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 8
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - bug
+  - do not merge yet
+  - help wanted
+  - high priority
+  - pinned
+# Label to use when marking an issue as stale
+staleLabel: stale
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. Thank you
+  for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: >
+  Please reopen this issue once you commit the changes requested or
+  make improvements on the code. Thank you for your contributions.

.github/workflows/greetings.yml

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+name: Greetings
+
+on:
+  issues:
+    types: [opened]
+
+jobs:
+  greeting:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: Saviour1001/Greeting-action@main
+      with:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        issue_message: 'Hello @${{github.actor}}, <br>
+                        Thank you for opening an issue. :octocat: <br>
+                        Note - Self-assigns by the original author will be prioritised by mentors manually<br>
+                        To get assigned to this particular issue please use <b>/assign</b><br>
+                        <i> Check this <a href="https://github.com/girlscript/winter-of-contributing/blob/main/.github/CONTRIBUTING.md">guide</a> before contributing.'

.github/workflows/issue-assign.yml

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+name: Assigner
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  slash_assign:
+    # If the acton was triggered by a new comment that starts with `/assign`
+    # or a on a schedule
+    if: >
+      (github.event_name == 'issue_comment' && startsWith(github.event.comment.body, '/assign')) ||
+      github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Assign the user or unassign stale assignments
+        uses: JasonEtco/[email protected]
+        with:
+          assigned_label: Assigned
+          days_until_warning: 5
+          days_until_unassign: 7
+          stale_assignment_label: Stale
+
+      - name: Message failure
+        if: ${{ failure() }}
+        uses: actions/github-script@v4
+        with:
+          script: |
+            github.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: 'This issue is already assigned to another contributor!\nPlease find/create a new issue to contribute to.\nYou can safely disregard the failed workflow notification for attempting to self-assign on this issue. ❌',
+            });       
+
+      - name: Checkout code
+        uses: actions/checkout@main
+      - name: Run Action
+        uses: Suvraneel/Issue_Watcher@main
+        with:
+          token: "${{ secrets.GITHUB_TOKEN }}"
+          author: "${{github.actor}}"
+          repo: girlscript/winter-of-contributing #Change the Repo name
+          maxIssue: 3

Android_Development_with_Kotlin/01. Version Control System/01.1 Requirement of Version Control System.md

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+# Requirement of Version Control System :-
+
+<br>
+
+* [Audio on Version Control System](#Audio-on-Version-Control-System)
+
+<br>
+
+## What is VCS and why do we need it?
+
+A Version Control System keeps track of the changes that we make to our files. By using a VCS, we can know when the changes were made and who made them. It also lets us easily revert a change if it turned out not to be a good idea. It makes collaboration easier by allowing us to merge changes from lots of different sources. However, unlike a regular file server which only saves the foremost recent version of a file, a VCS keeps track of all the different versions that we create as we save our changes. There are many different version control systems, each with their own implementation and with their own advantages and disadvantages. But, no matter how the VCS is implemented internally, they always access the history of our files.
+
+VCS also let us: 
+
+* Retrieve past versions of the file or directory
+
+* See who changed which files
+
+* How each file was changed and when the file was changed. 
+
+On top of this, we can make edits to multiple files and treat that collection of edits as a single change which is commonly known as a, commit. A VCS even provides a mechanism to allow the author of a commit to record why the change was made, including what bugs, tickets or issues were fixed by the change.
+
+A VCS stores your code and configuration along with its history. A version control system can function a lot like a time machine, giving you insights into the decisions of the past. With a VCS, you can view, track, and select snapshots from the history of your project. So, nothing you do is lost, and since we can use a VCS to store both code and configuration files, we can make the software more scalable and reliable.
+
+More about VCS [here](https://git-scm.com/book/en/v2/Getting-Started-About-Version-Control).
+
+![Centralised Version System](https://drive.google.com/uc?export=view&id=1MgCOg7EXFXq5w5xm6xIsR7pKjKWYrRKK)
+
+## What is Git?
+
+[**Git**](https://git-scm.com/) is a free open-source VCS available for installation on Unix based platforms, Windows and macOS. Git has a distributed architecture; this means that every person contributing to a repository has full copy of the repository on their own development machines.
+Collaborators can share and pull in changes that others have made as they need. And because the repositories are all local to the computer being used to create the files, most operations can be done really fast. 
+
+If you want to collaborate with others, it usually makes sense to set up a repository on a server to act as a kind of hub for everyone to interact with. Git can work as a standalone program as a server and as a client. This means that you can use Git on a single machine without even having a network connection. Or you can use it as a server on a machine where you want to host your repository. And then you can use Git as a client to access the repository from another machine or even the same one.
+
+![Distributed Version System](https://drive.google.com/uc?export=view&id=1XbrDGAkaYHuG05-gFwauH3URJM7m8muH)
+
+## What is Github?
+
+>	Git has a distributed architecture; this means that every person contributing to a repository has full copy of the repository on their own development machines.
+
+Any of us can create a Git server, and many companies have similar internal services. But if you don't want to set up a Git server yourself and host your repositories, you can use an online service like GitHub. 
+
+[**GitHub**](https://github.com/) is a web-based Git repository hosting service. On top of the version control functionality of Git, GitHub includes extra features like:
+
+* Bug tracking
+
+* Wikis
+
+* Task Management
+
+GitHub lets us share and access repositories on the web and copy or clone them to our local computer, so we can work on them. You don’t need to know how to code, use the command line, or install Git. You just need to signup and create a GitHub account.
+
+GitHub provides free access to a Git server for public and private repositories. It limits the number of contributors for the free private repositories, and offers an unlimited private repository service for a monthly fee ( this is free for [**Student Developer Packs**](https://education.github.com/pack) )
+
+
+<br>
+
+## Audio on Version Control System
+Link to the file -> <a href="https://drive.google.com/file/d/1kKy4njR21dDlZQCOTGU366b8hKrMRKal/view?usp=sharing">Version Control System</a>
+
+<br>
+
+### Authors:
+- [Asmit Malakannawar](https://github.com/Asmit2952) Documentation .
+- [Ayush Mishra](https://github.com/ayush-sleeping) Audio .