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https://github.com/OpenGenus/cosmos

World's largest Contributor driven code dataset | Used in Quark Search Engine, @OpenGenus IQ, OpenGenus Visual Project
https://github.com/OpenGenus/cosmos

algorithm datastructures hacktoberfest hacktoberfest-accepted hacktoberfest2022 hacktoberfest2023 internship internships interview-questions library offline-app opengenus search-algorithms sorting-algorithms

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World's largest Contributor driven code dataset | Used in Quark Search Engine, @OpenGenus IQ, OpenGenus Visual Project

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README 

        
# Cosmos



> [Join our Internship Program now](http://internship.opengenus.org/) | Try this cool [One Liner knowledge tool](https://iq.opengenus.org/one/)

>

> Participate in [Checklist project](https://github.com/OpenGenus/checklist)



> The universe of algorithm and data structures



**Cosmos** is your personal offline collection of every algorithm and data structure one will ever encounter and use in a lifetime. This provides solutions in various languages spanning `C`, `C++`, `Java`, `JavaScript`, `Swift`, `Python`, `Go` and others.



This work is maintained by a community of hundreds of people and is a _massive collaborative effort_ to bring the readily available coding knowledge **offline**.



> **Many coders ask me how to improve their own performances. I cannot say anything except "solve and review and prepare your library"** - _Uwi Tenpen_



Make your fundamentals in Algorithms and Data Structure with these free resources:



* [**50+** Linked List Problems](https://iq.opengenus.org/list-of-linked-list-problems/)

* [**50+** Array Problems](https://iq.opengenus.org/list-of-array-problems/)

* [**50+** Binary Tree Problems](https://iq.opengenus.org/list-of-binary-tree-problems/)

* [**100+** Dynamic Programming (DP) Problems](https://iq.opengenus.org/list-of-dynamic-programming-problems/)



# Cosmic Structure



Following is the high-level structure of cosmos:

* [Artificial intelligence](/code/artificial_intelligence) :robot:

* [Backtracking](/code/backtracking)

* [Bit manipulation](/code/bit_manipulation)

* [Cellular automaton](/code/cellular_automaton) 🐚

* [Compression algorithms](/code/compression) 🗜️

* [Computational geometry](/code/computational_geometry) :gear:

* [Cryptography](/code/cryptography)

* [Data structures](/code/data_structures)

* [Design pattern](/code/design_pattern)

* [Divide conquering](/code/divide_conquer) ➗

* [Dynamic programming](/code/dynamic_programming)

* [Graph algorithms](/code/graph_algorithms) 📈

* [Greedy algorithms](/code/greedy_algorithms) 💰

* [Mathematical algorithms](/code/mathematical_algorithms)  :1234:

* [Networking](/code/networking)  :globe_with_meridians:

* [Numerical analysis](/code/numerical_analysis)  :chart_with_upwards_trend:

* [Online challenges](/code/online_challenges)

* [Operating system](/code/operating_system) 💻

* [Quantum algorithms](/code/quantum_algorithms)  :cyclone:

* [Randomized algorithms](/code/randomized_algorithms)  :slot_machine:

* [Searching](/code/search) 🔎

* [Selecting](/code/selection_algorithms)

* [Sorting](/code/sorting)

* [Square root decomposition](/code/square_root_decomposition)

* [String algorithms](/code/string_algorithms) 🧵

* [Unclassified](/code/unclassified) 👻



Each type has several hundreds of problems with solutions in several languages spanning `C`, `C++`, `Java`, `Python`, `Go` and others.



# Maintainers



This is a massive collaboration. Hence, to keep the quality intact and drive the vision in the proper direction, we have maintainers.



> Maintainers are your friends forever. They are vastly different from moderators.



Currently, we have **5 active maintainers** and we are expanding quickly.



The task of maintainers is to review pull requests, suggest further quality additions and keep the work up to date with the current state of the world. 🌍



[Check out our current maintainers](https://github.com/OpenGenus/cosmos/wiki/maintainers)



# Contributors



The success of our vision to bring knowledge offline depends on you. Even a small contribution helps. All forms of contributions are highly welcomed and valued.



Currently, we have over **1000+ contributors** in Cosmos and **over 2K+ contributors** in sister projects of Cosmos.



When you contribute, your name with a link (if available) is added to our [contributors list](https://github.com/OpenGenus/cosmos/wiki/contributors).



You can contribute by writing `code`, documentation in the form of `installation guides` and `style guides`, making Cosmos search friendly and many others. There are endless possibilities.



Additionally, you might want to take a look at this [contributing guidelines](https://github.com/OpenGenus/cosmos/wiki/contribute) before you make Cosmos better.



You may, also, refer to the available [style guides](/guides/coding_style) before contributing code.



# License



We believe in freedom and improvement. [GNU General Public License v3.0](https://github.com/OpenGenus/cosmos/blob/master/LICENSE)



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