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- C++
- JavaScript
- Ruby
- Crystal
- Python
- Scala
- Fortran (Beta)
- C
- Java
- C#
- Haskell
- Rust
- Prolog (Beta)
- Clojure
- CoffeeScript
- Elixir
- TypeScript
- PHP
- F#
- Swift
- Go
- R (Beta)
- Shell
- OCaml (Beta)
- Julia (Beta)
- NASM
- Nim (Beta)
- Kotlin
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- Pascal (Beta)
- Raku (Beta)
- Perl (Beta)
- COBOL (Beta)
- Elm (Beta)
- D (Beta)
- Erlang (Beta)
- Racket
- Lua
Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.