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https://github.com/proalgos/proalgos-cpp

C++ implementations of well-known (and some rare) algorithms, while following good software development practices
https://github.com/proalgos/proalgos-cpp

algorithm algorithms algorithms-and-data-structures algos cpp cpp11 cpp14 cpp17 data-structures datastructures proalgos

Last synced: 4 days ago
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C++ implementations of well-known (and some rare) algorithms, while following good software development practices

Host: GitHub
URL: https://github.com/proalgos/proalgos-cpp
Owner: ProAlgos
License: mit
Created: 2016-12-19T21:51:27.000Z (about 8 years ago)
Default Branch: master
Last Pushed: 2024-04-25T20:13:19.000Z (9 months ago)
Last Synced: 2025-01-26T16:05:26.243Z (4 days ago)
Topics: algorithm, algorithms, algorithms-and-data-structures, algos, cpp, cpp11, cpp14, cpp17, data-structures, datastructures, proalgos
Language: C++
Homepage:
Size: 729 KB
Stars: 515
Watchers: 28
Forks: 363
Open Issues: 20
Metadata Files:
- Readme: README.md
- Contributing: docs/CONTRIBUTING.md
- License: LICENSE.md
- Code of conduct: docs/CODE_OF_CONDUCT.md

Awesome Lists containing this project

README

        # ProAlgos: C++

[![Travis status][travis-shield]][travis-link]

This project is focused on implementing **algorithms and data structures** in C++, while following **good software engineering practices**, such as: 

- Writing well-documented code

- Adhering to code guidelines

- Writing and passing unit tests

- Reviewing each other's code

## Goals

1. Implement algorithms and data structures

1. Learn to be better software developers

1. Guide one another on version control, unit testing, and algorithms

## How to get involved

There are a few ways to get involved.

#### Want to contribute to open-source and get involved with the project?

1. **Read** the [contribution guidelines][contrib-guide]

1. **Fork** the repo

1. **Create an issue** describing what you'd like to add, or **claim an issue** that's [up for grabs][up-for-grabs]

1. Create a **branch** and **add your code**

1. Submit a **pull request** and reference the issue it closes

You can find more details regarding the steps above in the [contribution

guidelines][contrib-guide], so be sure to check them out.

#### Just want to suggest a new algorithm or report a bug?

[Create a new issue](https://github.com/ProAlgos/ProAlgos-Cpp/issues/new) and we'll

handle it from there. :smile:

## Contents

:white_check_mark: = has unit tests

### Algorithms

* Backtracking

  * [N-Queens](cpp/include/algorithm/backtracking/n_queens.hpp) :white_check_mark:

* Dynamic programming

  * [0-1 knapsack](cpp/include/algorithm/dynamic_programming/0_1_knapsack.hpp) :white_check_mark:

  * [Coin change](cpp/include/algorithm/dynamic_programming/coin_change.hpp) :white_check_mark:

  * [Longest decreasing subsequence](cpp/include/algorithm/dynamic_programming/longest_decreasing_subsequence.hpp) :white_check_mark:

  * [Matrix chain multiplication](cpp/include/algorithm/dynamic_programming/matrix_chain_multiplication.hpp) :white_check_mark:

  * Maximum sum contiguous subarray: [Kadane's algorithm](cpp/include/algorithm/dynamic_programming/kadane.hpp) :white_check_mark:

  * [Rod cutting](cpp/include/algorithm/dynamic_programming/rod_cutting.hpp) :white_check_mark:

  * [Weighted activity selection](cpp/include/algorithm/dynamic_programming/weighted_activity_selection.hpp) :white_check_mark:

* Number theory

  * [Binomial coefficient](cpp/include/algorithm/number_theory/binomial_coefficient.hpp) :white_check_mark:

  * Euclidean algorithms

    * [Greatest common divisor](cpp/include/algorithm/number_theory/greatest_common_divisor.hpp) (GCD) :white_check_mark:

    * [Extended Euclidean algorithm](cpp/include/algorithm/number_theory/extended_euclidean.hpp) (Bézout coefficients) :white_check_mark:

  * [Fast exponentiation](cpp/include/algorithm/number_theory/fast_exponentiation.hpp) :white_check_mark:

  * Nth Fibonacci number

    * [Linear time algorithm](cpp/include/algorithm/number_theory/fibonacci.hpp) :white_check_mark:

    * [Logarithmic time algorithm](cpp/include/algorithm/number_theory/fibonacci_efficient.hpp) :white_check_mark:

  * [Perfect number check](cpp/include/algorithm/number_theory/perfect_number_check.hpp) :white_check_mark:

  * Prime numbers

    * [Primorial](include/algorithm/number_theory/primorial.hpp) :white_check_mark:

    * [Sieve of Eratosthenes (simple)](cpp/include/algorithm/number_theory/sieve_of_eratosthenes.hpp) :white_check_mark:

  

* Searching

  * [Binary search](cpp/include/algorithm/searching/binary_search.hpp) :white_check_mark:

  * [Linear search](cpp/include/algorithm/searching/linear_search.hpp) :white_check_mark:

  * [Ternary search](cpp/include/algorithm/searching/ternary_search.hpp) :white_check_mark:

  

* Sorting

  * [Bubble sort](cpp/include/algorithm/sorting/bubble_sort.hpp) :white_check_mark:

  * [Bucket sort](cpp/include/algorithm/sorting/bucket_sort.hpp) :white_check_mark:

  * [Comb sort](cpp/include/algorithm/sorting/comb_sort.hpp) :white_check_mark:

  * [Counting sort (stable)](cpp/include/algorithm/sorting/counting_sort.hpp) :white_check_mark:

  * [Heap sort](cpp/include/algorithm/sorting/heap_sort.hpp) :white_check_mark:

  * [Insertion sort](cpp/include/algorithm/sorting/insertion_sort.hpp) :white_check_mark:

  * [Merge sort](cpp/include/algorithm/sorting/merge_sort.hpp) :white_check_mark:

  * [Quick sort](cpp/include/algorithm/sorting/quick_sort.hpp) :white_check_mark:

  * [Radix sort](cpp/include/algorithm/sorting/radix_sort.hpp)

  * [Selection sort](cpp/include/algorithm/sorting/selection_sort.hpp) :white_check_mark:

  * [Shell sort](cpp/include/algorithm/sorting/shell_sort.hpp) :white_check_mark:

* String

  * [Longest common subsequence](cpp/include/algorithm/string/longest_common_subsequence.hpp) :white_check_mark:

  * Searching (pattern matching)

    * [Knuth-Morris-Pratt](cpp/include/algorithm/string/knuth_morris_pratt.hpp) :white_check_mark:

  * [Edit Distance Problem](cpp/include/algorithm/string/edit_distance.hpp) :white_check_mark:

  * [Shunting yard](cpp/include/algorithm/string/shunting_yard.hpp) :white_check_mark:

  * Permutation

    * [Heap's Algorithm](cpp/include/algorithm/string/heaps_algorithm.hpp) :white_check_mark:

### Data structures

* Linked List

  * [Singly linked list](cpp/include/data_structure/linked_list/singly_linked_list.hpp) :white_check_mark:

  * [Doubly linked list](cpp/include/data_structure/linked_list/doubly_linked_list.hpp) :white_check_mark:

  

* Queue

  * [Queue](cpp/include/data_structure/queue/queue.hpp) :white_check_mark:

  

* Set

  * [Disjoint-set](cpp/include/data_structure/set/disjoint_set.hpp) :white_check_mark:

  

* Stack

  * [Stack](cpp/include/data_structure/stack/stack.hpp) :white_check_mark:

  

* Tree

  * [Binary search tree](cpp/include/data_structure/tree/binary_search_tree.hpp) :white_check_mark:

  * [Fenwick tree](cpp/include/data_structure/tree/fenwick_tree.hpp) :white_check_mark:

## Compiling

To compile the source files, run **`make`** from the `C++` directory. Doing so will create executable binaries in the `bin` directory.

To compile and run all tests, run **`make test`**. This will compile all the tests (in the same way as described above) and will run them, displaying the results. 

In order to run a specific test and see its results, run it manually from the `bin` directory after calling `make`. For example, this command (executed from `bin`) would run only the unit tests for the N Queens algorithm:

```

$ ./n_queens

```

To remove all of the files created during compilation, run **`make clean`**. You need not do this every time you make some changes to a file and want to recompile it. Just run **`make`** and it will re-compile just those files whose contents have changed.

To see what happens in the background during compilation and testing, see the following files:

- [Makefile](cpp/Makefile)

- [CMakeLists.txt](cpp/CMakeLists.txt)

- [Testing script](cpp/scripts/run_tests.sh)

For more information on `make`, see the [GNU make Manual](https://www.gnu.org/software/make/manual/make.html). For more information on `CMake`, see the [CMake Tutorial](https://cmake.org/cmake/help/latest/guide/tutorial/index.html).

## Maintainers

This project is actively maintained by [@alxmjo](https://github.com/alxmjo), and inactively by [@faheel](https://github.com/faheel).

## License

This project is licensed under the terms of the [MIT license](LICENSE.md).

[travis-shield]: https://img.shields.io/travis/ProAlgos/ProAlgos-Cpp.svg?style=for-the-badge

[travis-link]: https://travis-ci.org/ProAlgos/ProAlgos-Cpp

[contrib-guide]: docs/CONTRIBUTING.md

[up-for-grabs]: https://github.com/ProAlgos/ProAlgos-Cpp/labels/Up%20for%20grabs