- [Moving from C to C++](/Basic/moving-from-c-to-cpp.md) - [Standard Template Library (STL)](/Basic/stl-cpp.md) - [Editorial](/Basic/stl-recursive-and-basic-math-editorials.md) - [Basic Math and Recursion](/Basic/Recursion-and-Basic-Maths.md) - [Editorial](/Basic/stl-recursive-and-basic-math-editorials.md) - [Binary Search and Basic Math](/Basic/binary-search-and-basic-maths.md) - [Editorial](/Basic/editorial-binary-search-and-basic-maths.md) The project is written primarily in Swift, distributed under the Apache License 2.0 license, first published in 2019. Key topics include: algorithms, coding, coding-interviews, competitive-coding, competitive-programming.